Radio frequency control circuit and control method, device, chip and electronic device thereof

Abstract

The present invention provides a radio frequency control circuit and its control method, device, chip and electronic device. The radio frequency control circuit includes: at least two communication circuits; a radio frequency circuit; a control circuit connected to each of the at least two communication circuits and the radio frequency circuit. The control method of the radio frequency control circuit includes: receiving a first input to the at least two communication circuits; determining a target communication circuit among the at least two communication circuits in response to the first input; and controlling the control circuit to operate in a mode corresponding to the target communication circuit to drive the radio frequency circuit to operate.

Description

Technical Field

[0001] The present invention relates to the field of circuit technology, and in particular to a radio frequency control circuit and a control method, device, chip, and electronic device thereof. Background Art

[0002] Radio frequency circuits are essential circuits for IoT devices.

[0003] In the related technical solutions, as the types of communication circuits provided on the chip increase, the number of corresponding radio frequency circuits also increases.

[0004] However, the increase in the number of RF circuits increases the manufacturing cost of IoT devices and also causes an increase in power consumption. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0006] To this end, a first aspect of the present invention is to provide a control method for a radio frequency control circuit.

[0007] A second aspect of the present invention provides a control device for a radio frequency control circuit.

[0008] A third aspect of the present invention is to provide another control device for a radio frequency control circuit.

[0009] A fourth aspect of the present invention provides a readable storage medium.

[0010] A fifth aspect of the present invention provides a radio frequency control circuit.

[0011] A sixth aspect of the present invention is to provide another radio frequency control circuit.

[0012] A seventh aspect of the present invention is to provide a chip.

[0013] An eighth aspect of the present invention provides an electronic device.

[0014] In view of this, a first aspect of the present invention provides a control method for a radio frequency control circuit, the radio frequency control circuit comprising: at least two communication circuits; a radio frequency circuit; a control circuit connected to each of the at least two communication circuits and the radio frequency circuit, the control method for the radio frequency control circuit comprising: receiving a first input to the at least two communication circuits; determining a target communication circuit among the at least two communication circuits in response to the first input; and controlling the control circuit to operate in a mode corresponding to the target communication circuit to drive the radio frequency circuit to operate.

[0015] The technical solution of the present application proposes a control method for a radio frequency control circuit, wherein the control circuit is connected to at least two communication circuits and a radio frequency circuit respectively, so that each of the at least two communication circuits can be connected to the radio frequency circuit through the control circuit, and then use the radio frequency circuit to send and receive data.

[0016] Among them, by determining the target communication circuit among at least two communication circuits, the control circuit can operate in a mode corresponding to the target communication circuit, and then utilize the radio frequency circuit to work. In this process, the multiplexing of the radio frequency circuit can be achieved. In this process, there is no need to set up a radio frequency circuit for each communication circuit, thereby reducing the manufacturing cost and at the same time, it is also convenient to reduce the operating power consumption.

[0017] In the above technical solution, the target communication circuit is selected to ensure that at the same time, only one communication circuit uses the radio frequency circuit to send and receive data, thereby avoiding multiple communication circuits using the radio frequency circuit at the same time, causing communication abnormalities.

[0018] In the above technical solution, radio frequency (RF) is abbreviated as radio frequency current, which is the abbreviation for high-frequency alternating electromagnetic waves. Alternating current that changes less than 1000 times per second is called low-frequency current, while current that changes more than 1000 times per second is called high-frequency current, and RF is one such high-frequency current.

[0019] Radio frequency circuits are those that process signals with electromagnetic wavelengths on the same order of magnitude as the circuit or device size. Due to the relationship between device and wire size, the circuits require the use of distributed parameter theory. These circuits are considered radio frequency circuits, and their frequencies are not strictly defined. For example, long-distance AC transmission lines (50 or 60 Hz) sometimes require RF theory.

[0020] In the above technical solution, the communication circuit can be understood as a communication module, which is used to realize the sending and receiving of data under a certain communication mode. Based on this, at least two communication circuits can be understood as at least two communication circuits, and the communication modes adopted in the at least two communication circuits are at least two.

[0021] In one technical solution, each communication circuit has a corresponding enabling end, wherein when the enabling end is selected, the communication circuit is considered to be selected, that is, the first input can be understood as triggering the enabling end in the communication circuit.

[0022] In one technical solution, each communication circuit has a communication function, wherein the first input can be understood as activation of the communication function.

[0023] Specifically, for example, the first communication circuit among at least two communication circuits corresponds to the first communication function, and the second communication circuit among at least two communication circuits corresponds to the second communication function. When the activation of the first communication function is received, the first communication circuit is used as the target communication circuit.

[0024] In addition, the control method of the radio frequency control circuit proposed in this application also has the following additional technical features.

[0025] In the above technical solution, the control circuit is controlled to operate in a mode corresponding to the target communication circuit, specifically including: configuring a channel that matches the target communication circuit, the channel corresponding to a frequency control word; controlling the frequency synthesizer in the control circuit to generate a frequency signal according to the frequency control word to drive the RF circuit to operate.

[0026] In this technical solution, the frequency synthesizer can be a phase-locked loop frequency synthesizer, wherein the phase-locked loop frequency synthesizer is mainly composed of a high-stability crystal oscillator, a phase detector, a loop filter, a voltage-controlled oscillator, a program divider, a CPU channel selection control circuit, and a lock output control circuit, where fr is the reference frequency and fo is the output frequency.

[0027] When no input signal is applied to the PLL system, the phase detector output is zero, the loop filter output voltage Vd(t) is also zero, and the voltage-controlled oscillator operates at the set center frequency. When an input signal is applied to the PLL, the phase detector compares the input signal's phase and frequency with the VCO output (via a frequency divider), generating an error voltage Vd(t) corresponding to the phase difference between the two signals. This error voltage is filtered and applied to the VCO's control input, reducing the frequency error between the VCO output and the input signal. When the VCO frequency is sufficiently close to the input signal frequency, the closed-loop nature of the PLL forces the VCO to lock to the input signal frequency. Except for a limited phase error, the VCO frequency is identical to the input signal frequency and can automatically track changes in the input frequency. The output frequency of the PLL frequency synthesizer is thus fo = Nfr. The reference frequency fr is derived from a high-stability crystal oscillator divided by a fixed reference frequency.

[0028] For example, assuming a crystal oscillator frequency of 3.2MHz and a fixed frequency coefficient of 128, the reference frequency fr = 3.2MHz / 128 = 25kHz. The microcontroller provides the channel CNC program divider parameters, and by varying the frequency division coefficient N, different frequencies can be obtained. The frequency control word determines which of these frequencies corresponds, ensuring that the output frequency is the frequency signal corresponding to the frequency control word for use by the target communication circuit.

[0029] In any of the above technical solutions, it also includes: when the target communication circuit needs to send data, the control circuit is switched from the standby state to the sending state corresponding to the target communication circuit, in the sending state, the frequency synthesizer is locked, the sending channel corresponding to the target communication circuit is opened, and the receiving channel corresponding to the target communication circuit is closed; when the target communication circuit needs to receive data, the control circuit is switched from the standby state to the sending state corresponding to the target communication circuit, in the receiving state, the frequency synthesizer is locked, the receiving channel corresponding to the target communication circuit is opened, and the sending channel corresponding to the target communication circuit is closed.

[0030] In this technical solution, a control circuit is used to switch between different states so that the frequency synthesizer can lock the channel and then use the target communication circuit to send and receive data.

[0031] In addition, in the above technical solution, the transmission channel is opened only when there is a need to transmit data, so as to reduce the opening of the channel, so that the frequency synthesizer is always in operation, resulting in excessive power consumption of the frequency synthesizer.

[0032] It is worth pointing out that when there is a need to send data, that is, when the sending channel is opened, the receiving channel is closed at the same time, avoiding the simultaneous opening of the two channels and confusion in data sending and receiving, thereby ensuring the stability of the target communication circuit operation.

[0033] Similarly, when there is a need to receive data, that is, when the receiving channel is opened, the sending channel is closed at the same time, avoiding the simultaneous opening of the two channels and confusion in data sending and receiving, thereby ensuring the stability of the target communication circuit operation.

[0034] In any of the above technical solutions, when the target communication circuit stops running, switches the target communication circuit, or switches the channel, the control circuit switches to a standby state; in the standby state, the frequency synthesizer cancels the lock and closes the transmitting channel and receiving channel corresponding to the target communication circuit.

[0035] In this technical solution, the control circuit is controlled to enter a standby state, thereby reducing the standby power consumption of the radio frequency control circuit and, at the same time, reducing the occupancy of the channel.

[0036] In the above technical solution, the target communication circuit stops running, which can be understood as the end of operation. Exemplarily, data interaction has been completed using the target communication circuit, such as feedback data has been received after sending data.

[0037] In the above technical solution, switching the target communication circuit can be understood as switching the selected object of the target communication circuit from the first communication circuit to the second communication circuit among the at least two communication circuits.

[0038] In one of the technical solutions, switching channels can be understood as switching an open channel from a sending channel to a receiving channel, or from a receiving channel to a sending channel.

[0039] In any of the above technical solutions, before the target communication circuit among the at least two communication circuits is selected, the method further includes: controlling the control circuit to run a calibration mode, and exiting the calibration mode after the calibration of the radio frequency circuit is completed.

[0040] In this technical solution, the calibration mode is run to calibrate the radio frequency circuit, thereby ensuring the stability of the radio frequency circuit and achieving accurate data transmission.

[0041] In one of the technical solutions, a calibration program is stored in the control circuit, and after the calibration program is completed, the radio frequency circuit calibration is completed.

[0042] In any of the above technical solutions, in the calibration mode, one or more of the following calibrations are performed: DC signal calibration, orthogonal demodulation calibration, and power calibration.

[0043] In any of the above technical solutions, the at least two communication circuits include: a Bluetooth communication circuit and a Wi-Fi circuit.

[0044] A second aspect of the present invention provides a control device for a radio frequency control circuit, the radio frequency control circuit comprising: at least two communication circuits; a radio frequency circuit; a control circuit connected to each of the at least two communication circuits and the radio frequency circuit, the control device for the radio frequency control circuit comprising: a receiving unit for receiving a first input to the at least two communication circuits; a responding unit for determining a target communication circuit among the at least two communication circuits in response to the first input; and a processing unit for controlling the control circuit to operate in a mode corresponding to the target communication circuit to drive the radio frequency circuit to operate.

[0045] The technical solution of the present application proposes a control device for a radio frequency control circuit, wherein the control circuit is connected to at least two communication circuits and a radio frequency circuit respectively, so that each of the at least two communication circuits can be connected to the radio frequency circuit through the control circuit, and then use the radio frequency circuit to send and receive data.

[0046] Among them, by determining the target communication circuit among at least two communication circuits, the control circuit can operate in a mode corresponding to the target communication circuit, and then utilize the radio frequency circuit to work. In this process, the multiplexing of the radio frequency circuit can be achieved. In this process, there is no need to set up a radio frequency circuit for each communication circuit, thereby reducing the manufacturing cost and at the same time, it is also convenient to reduce the operating power consumption.

[0047] In the above technical solution, the target communication circuit is selected to ensure that at the same time, only one communication circuit uses the radio frequency circuit to send and receive data, thereby avoiding multiple communication circuits using the radio frequency circuit at the same time, causing communication abnormalities.

[0048] In the above technical solution, radio frequency (RF) is abbreviated as radio frequency current, which is the abbreviation for high-frequency alternating electromagnetic waves. Alternating current that changes less than 1000 times per second is called low-frequency current, while current that changes more than 1000 times per second is called high-frequency current, and RF is one such high-frequency current.

[0049] Radio frequency circuits are those that process signals with electromagnetic wavelengths on the same order of magnitude as the circuit or device size. Due to the relationship between device and wire size, the circuits require the use of distributed parameter theory. These circuits are considered radio frequency circuits, and their frequencies are not strictly defined. For example, long-distance AC transmission lines (50 or 60 Hz) sometimes require RF theory.

[0050] In the above technical solution, the communication circuit can be understood as a communication module, which is used to realize the sending and receiving of data under a certain communication mode. Based on this, at least two communication circuits can be understood as at least two communication circuits, and the communication modes adopted in the at least two communication circuits are at least two.

[0051] In one technical solution, each communication circuit has a corresponding enabling end, wherein when the enabling end is selected, the communication circuit is considered to be selected, that is, the first input can be understood as triggering the enabling end in the communication circuit.

[0052] In one technical solution, each communication circuit has a communication function, wherein the first input can be understood as activation of the communication function.

[0053] Specifically, for example, the first communication circuit among at least two communication circuits corresponds to the first communication function, and the second communication circuit among at least two communication circuits corresponds to the second communication function. When the activation of the first communication function is received, the first communication circuit is used as the target communication circuit.

[0054] In addition, the control device of the radio frequency control circuit proposed in this application also has the following additional technical features.

[0055] In the above technical solution, the processing unit is specifically used to: configure a channel that matches the target communication circuit, the channel corresponds to a frequency control word; control the frequency synthesizer in the control circuit to generate a frequency signal according to the frequency control word to drive the RF circuit to operate.

[0056] In this technical solution, the frequency synthesizer can be a phase-locked loop frequency synthesizer, wherein the phase-locked loop frequency synthesizer is mainly composed of a high-stability crystal oscillator, a phase detector, a loop filter, a voltage-controlled oscillator, a program divider, a CPU channel selection control circuit, and a lock output control circuit, where fr is the reference frequency and fo is the output frequency.

[0057] When no input signal is applied to the PLL system, the phase detector output is zero, the loop filter output voltage Vd(t) is also zero, and the voltage-controlled oscillator operates at the set center frequency. When an input signal is applied to the PLL, the phase detector compares the input signal's phase and frequency with the VCO output (via a frequency divider), generating an error voltage Vd(t) corresponding to the phase difference between the two signals. This error voltage is filtered and applied to the VCO's control input, reducing the frequency error between the VCO output and the input signal. When the VCO frequency is sufficiently close to the input signal frequency, the closed-loop nature of the PLL forces the VCO to lock to the input signal frequency. Except for a limited phase error, the VCO frequency is identical to the input signal frequency and can automatically track changes in the input frequency. The output frequency of the PLL frequency synthesizer is thus fo = Nfr. The reference frequency fr is derived from a high-stability crystal oscillator divided by a fixed reference frequency.

[0058] For example, assuming a crystal oscillator frequency of 3.2MHz and a fixed frequency coefficient of 128, the reference frequency fr = 3.2MHz / 128 = 25kHz. The microcontroller provides the channel CNC program divider parameters, and by varying the frequency division coefficient N, different frequencies can be obtained. The frequency control word determines which of these frequencies corresponds, ensuring that the output frequency is the frequency signal corresponding to the frequency control word for use by the target communication circuit.

[0059] In the above technical solution, the processing unit is also used to: when the target communication circuit needs to send data, control the control circuit to switch from a standby state to a sending state corresponding to the target communication circuit, in which the frequency synthesizer is locked, the sending channel corresponding to the target communication circuit is opened, and the receiving channel corresponding to the target communication circuit is closed; when the target communication circuit needs to receive data, control the control circuit to switch from a standby state to a sending state corresponding to the target communication circuit, in which the frequency synthesizer is locked, the receiving channel corresponding to the target communication circuit is opened, and the sending channel corresponding to the target communication circuit is closed.

[0060] In this technical solution, a control circuit is used to switch between different states so that the frequency synthesizer can lock the channel and then use the target communication circuit to send and receive data.

[0061] In addition, in the above technical solution, the transmission channel is opened only when there is a need to transmit data, so as to reduce the opening of the channel, so that the frequency synthesizer is always in operation, resulting in excessive power consumption of the frequency synthesizer.

[0062] It is worth pointing out that when there is a need to send data, that is, when the sending channel is opened, the receiving channel is closed at the same time, avoiding the simultaneous opening of the two channels and confusion in data sending and receiving, thereby ensuring the stability of the target communication circuit operation.

[0063] Similarly, when there is a need to receive data, that is, when the receiving channel is opened, the sending channel is closed at the same time, avoiding the simultaneous opening of the two channels and confusion in data sending and receiving, thereby ensuring the stability of the target communication circuit operation.

[0064] In the above technical solution, the processing unit is also used to: when the target communication circuit stops running, switches the target communication circuit or switches the channel, control the control circuit to switch to the standby state; in the standby state, the frequency synthesizer cancels the lock and closes the sending channel and receiving channel corresponding to the target communication circuit.

[0065] In this technical solution, the control circuit is controlled to enter a standby state, thereby reducing the standby power consumption of the radio frequency control circuit and, at the same time, reducing the occupancy of the channel.

[0066] In the above technical solution, the target communication circuit stops running, which can be understood as the end of operation. Exemplarily, data interaction has been completed using the target communication circuit, such as feedback data has been received after sending data.

[0067] In the above technical solution, switching the target communication circuit can be understood as switching the selected object of the target communication circuit from the first communication circuit to the second communication circuit among the at least two communication circuits.

[0068] In one of the technical solutions, switching channels can be understood as switching an open channel from a sending channel to a receiving channel, or from a receiving channel to a sending channel.

[0069] In the above technical solution, the processing unit is further used to: control the control circuit to run the calibration mode, and exit the calibration mode after the calibration of the radio frequency circuit is completed.

[0070] In this technical solution, the calibration mode is run to calibrate the radio frequency circuit, thereby ensuring the stability of the radio frequency circuit and achieving accurate data transmission.

[0071] In one of the technical solutions, a calibration program is stored in the control circuit, and after the calibration program is completed, the radio frequency circuit calibration is completed.

[0072] In the above technical solution, in the calibration mode, one or more of the following calibrations are performed: DC signal calibration, orthogonal demodulation calibration, and power calibration.

[0073] In the above technical solution, the at least two communication circuits include: a Bluetooth communication circuit and a Wi-Fi circuit.

[0074] A third aspect of the present invention provides a control device for a radio frequency control circuit, comprising: a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of any of the above methods are implemented.

[0075] A fourth aspect of the present invention provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of any of the above methods are implemented.

[0076] A fifth aspect of the present invention provides a radio frequency control circuit, comprising: a control device as any of the above radio frequency control circuits; and / or the above readable storage medium.

[0077] The sixth aspect of the present invention provides a radio frequency control circuit, comprising: at least two communication circuits; a radio frequency circuit; and a control circuit connected to each of the at least two communication circuits and the radio frequency circuit, for executing steps of controlling the radio frequency control circuit as described above.

[0078] A seventh aspect of the present invention provides a chip, comprising: the radio frequency control circuit as described above.

[0079] An eighth aspect of the present invention provides an electronic device, comprising: any one of the above-mentioned radio frequency control circuits; and / or the above-mentioned chip.

[0080] In the above technical solution, the electronic device is an Internet of Things device.

[0081] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0083] Figure 1 A connection diagram of a radio frequency control circuit according to an embodiment of the present invention is shown;

[0084] Figure 2 A schematic diagram showing a control method of a radio frequency control circuit in an embodiment of the present invention is shown;

[0085] Figure 3 A schematic block diagram of a control device for a radio frequency control circuit according to an embodiment of the present invention is shown;

[0086] Figure 4 A schematic diagram of the interaction of the control circuit in an embodiment of the present invention is shown.

[0087] in, Figure 1 The corresponding relationship between the reference numerals and component names is as follows:

[0088] 102 communication circuit, 104 control circuit, 106 radio frequency circuit. DETAILED DESCRIPTION

[0089] In order to more clearly understand the above aspects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0090] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0091] In one embodiment, Figure 1 and Figure 2 As shown, a control method for a radio frequency control circuit is proposed. The radio frequency control circuit includes: at least two communication circuits 102; a radio frequency circuit 106; and a control circuit 104 connected to each of the at least two communication circuits 102 and the radio frequency circuit 106. The control method for the radio frequency control circuit includes:

[0092] Step 202, receiving a first input to at least two communication circuits;

[0093] Step 204, in response to the first input, determining a target communication circuit among at least two communication circuits;

[0094] Step 206: Control the control circuit to operate in a mode corresponding to the target communication circuit to drive the radio frequency circuit to operate.

[0095] An embodiment of the present application proposes a control method for a radio frequency control circuit, wherein the control circuit is connected to at least two communication circuits and a radio frequency circuit respectively, so that each of the at least two communication circuits can be connected to the radio frequency circuit through the control circuit, and then use the radio frequency circuit to send and receive data.

[0096] Among them, by determining the target communication circuit among at least two communication circuits, the control circuit can operate in a mode corresponding to the target communication circuit, and then utilize the radio frequency circuit to work. In this process, the multiplexing of the radio frequency circuit can be achieved. In this process, there is no need to set up a radio frequency circuit for each communication circuit, thereby reducing the manufacturing cost and at the same time, it is also convenient to reduce the operating power consumption.

[0097] In the above embodiment, the target communication circuit is selected to ensure that at the same time, only one communication circuit uses the radio frequency circuit to transmit and receive data, thereby avoiding communication abnormalities caused by multiple communication circuits using the radio frequency circuit at the same time.

[0098] In the above embodiments, radio frequency (RF) is abbreviated as radio frequency (RF), which is the abbreviation for radio frequency current, a high-frequency alternating electromagnetic wave. Alternating current that changes less than 1000 times per second is called low-frequency current, while current that changes more than 1000 times per second is called high-frequency current, and RF is one such high-frequency current.

[0099] Radio frequency circuits are those that process signals with electromagnetic wavelengths on the same order of magnitude as the circuit or device size. Due to the relationship between device and wire size, the circuits require the use of distributed parameter theory. These circuits are considered radio frequency circuits, and their frequencies are not strictly defined. For example, long-distance AC transmission lines (50 or 60 Hz) sometimes require RF theory.

[0100] In the above embodiments, the communication circuit can be understood as a communication module, which is used to realize the sending and receiving of data under a certain communication mode. Based on this, at least two communication circuits can be understood as at least two communication circuits, and the communication modes adopted in the at least two communication circuits are at least two.

[0101] In one embodiment, each communication circuit has a corresponding enable terminal, wherein when the enable terminal is selected, the communication circuit is considered to be selected, that is, the first input can be understood as triggering the enable terminal in the communication circuit.

[0102] In one embodiment, each communication circuit has a communication function, wherein the first input can be understood as activation of the communication function.

[0103] Specifically, for example, the first communication circuit among at least two communication circuits corresponds to the first communication function, and the second communication circuit among at least two communication circuits corresponds to the second communication function. When the activation of the first communication function is received, the first communication circuit is used as the target communication circuit.

[0104] In the above embodiment, the control circuit is controlled to operate in a mode corresponding to the target communication circuit, specifically including: configuring a channel that matches the target communication circuit, the channel corresponding to a frequency control word; controlling the frequency synthesizer in the control circuit to generate a frequency signal according to the frequency control word to drive the RF circuit to operate.

[0105] In this embodiment, the frequency synthesizer can be a phase-locked loop frequency synthesizer, wherein the phase-locked loop frequency synthesizer is mainly composed of a high-stability crystal oscillator, a phase detector, a loop filter, a voltage-controlled oscillator, a program divider, a CPU channel selection control circuit, and a lock output control circuit, where fr is the reference frequency and fo is the output frequency.

[0106] When no input signal is applied to the PLL system, the phase detector output is zero, the loop filter output voltage Vd(t) is also zero, and the voltage-controlled oscillator operates at the set center frequency. When an input signal is applied to the PLL, the phase detector compares the input signal's phase and frequency with the VCO output (via a frequency divider), generating an error voltage Vd(t) corresponding to the phase difference between the two signals. This error voltage is filtered and applied to the VCO's control input, reducing the frequency error between the VCO output and the input signal. When the VCO frequency is sufficiently close to the input signal frequency, the closed-loop nature of the PLL forces the VCO to lock to the input signal frequency. Except for a limited phase error, the VCO frequency is identical to the input signal frequency and can automatically track changes in the input frequency. The output frequency of the PLL frequency synthesizer is thus fo = Nfr. The reference frequency fr is derived from a high-stability crystal oscillator divided by a fixed reference frequency.

[0107] For example, assuming a crystal oscillator frequency of 3.2MHz and a fixed frequency coefficient of 128, the reference frequency fr = 3.2MHz / 128 = 25kHz. The microcontroller provides the channel CNC program divider parameters, and by varying the frequency division coefficient N, different frequencies can be obtained. The frequency control word determines which of these frequencies corresponds, ensuring that the output frequency is the frequency signal corresponding to the frequency control word for use by the target communication circuit.

[0108] In any of the above embodiments, it also includes: when the target communication circuit needs to send data, the control circuit is controlled to switch from a standby state to a sending state corresponding to the target communication circuit, in which the frequency synthesizer is locked, the sending channel corresponding to the target communication circuit is opened, and the receiving channel corresponding to the target communication circuit is closed; when the target communication circuit needs to receive data, the control circuit is controlled to switch from a standby state to a sending state corresponding to the target communication circuit, in which the frequency synthesizer is locked, the receiving channel corresponding to the target communication circuit is opened, and the sending channel corresponding to the target communication circuit is closed.

[0109] In this embodiment, a control circuit is used to switch between different states so that the frequency synthesizer can lock the channel and then use the target communication circuit to transmit and receive data.

[0110] Furthermore, in the above embodiment, the transmission channel is only opened when there is a need to transmit data, so as to reduce the opening of the channel, so that the frequency synthesizer is always in operation, resulting in excessive power consumption of the frequency synthesizer.

[0111] It is worth pointing out that when there is a need to send data, that is, when the sending channel is opened, the receiving channel is closed at the same time, avoiding the simultaneous opening of the two channels and confusion in data sending and receiving, thereby ensuring the stability of the target communication circuit operation.

[0112] Similarly, when there is a need to receive data, that is, when the receiving channel is opened, the sending channel is closed at the same time, avoiding the simultaneous opening of the two channels and confusion in data sending and receiving, thereby ensuring the stability of the target communication circuit operation.

[0113] In any of the above embodiments, when the target communication circuit stops running, switches the target communication circuit, or switches the channel, the control circuit switches to a standby state; in the standby state, the frequency synthesizer cancels the lock and closes the transmitting channel and receiving channel corresponding to the target communication circuit.

[0114] In this embodiment, the control circuit is controlled to enter the standby state, so as to reduce the standby power consumption of the radio frequency control circuit and, at the same time, reduce the channel occupancy.

[0115] In the above embodiment, the target communication circuit stops operating, which can be understood as the end of operation. Exemplarily, data interaction has been completed using the target communication circuit, such as feedback data has been received after sending data.

[0116] In the above embodiment, switching the target communication circuit may be understood as switching the selected object of the target communication circuit from the first communication circuit to the second communication circuit among the at least two communication circuits.

[0117] In one embodiment, switching channels may be understood as switching an enabled channel from a sending channel to a receiving channel, or from a receiving channel to a sending channel.

[0118] In any of the above embodiments, before the target communication circuit among the at least two communication circuits is selected, the method further includes: controlling the control circuit to run a calibration mode, and exiting the calibration mode after the calibration of the radio frequency circuit is completed.

[0119] In this embodiment, the calibration mode is run to calibrate the radio frequency circuit, thereby ensuring stable operation of the radio frequency circuit and achieving accurate data transmission.

[0120] In one embodiment, a calibration program is stored in the control circuit, and after the calibration program is completed, the radio frequency circuit calibration is completed.

[0121] In any of the above embodiments, in the calibration mode, one or more of the following calibrations are performed: DC signal calibration, orthogonal demodulation calibration, and power calibration.

[0122] In any of the above embodiments, the at least two communication circuits include: a Bluetooth communication circuit and a Wi-Fi circuit.

[0123] In one embodiment, Figure 3 As shown, a control device for a radio frequency control circuit is provided. The radio frequency control circuit includes: at least two communication circuits; a radio frequency circuit; a control circuit connected to each of the at least two communication circuits and the radio frequency circuit. The control device 300 for the radio frequency control circuit includes: a receiving unit 302, for receiving a first input to the at least two communication circuits; a responding unit 304, for determining a target communication circuit among the at least two communication circuits in response to the first input; and a processing unit 306, for controlling the control circuit to operate in a mode corresponding to the target communication circuit to drive the radio frequency circuit to operate.

[0124] An embodiment of the present application proposes a control device 300 for a radio frequency control circuit, wherein the control circuit is connected to at least two communication circuits and a radio frequency circuit respectively, so that each of the at least two communication circuits can be connected to the radio frequency circuit through the control circuit, and then use the radio frequency circuit to send and receive data.

[0125] Among them, by determining the target communication circuit among at least two communication circuits, the control circuit can operate in a mode corresponding to the target communication circuit, and then utilize the radio frequency circuit to work. In this process, the multiplexing of the radio frequency circuit can be achieved. In this process, there is no need to set up a radio frequency circuit for each communication circuit, thereby reducing the manufacturing cost and at the same time, it is also convenient to reduce the operating power consumption.

[0126] In the above embodiment, the target communication circuit is selected to ensure that at the same time, only one communication circuit uses the radio frequency circuit to transmit and receive data, thereby avoiding communication abnormalities caused by multiple communication circuits using the radio frequency circuit at the same time.

[0127] In the above embodiments, radio frequency (RF) is abbreviated as radio frequency (RF), which is the abbreviation for radio frequency current, a high-frequency alternating electromagnetic wave. Alternating current that changes less than 1000 times per second is called low-frequency current, while current that changes more than 1000 times per second is called high-frequency current, and RF is one such high-frequency current.

[0128] Radio frequency circuits are those that process signals with electromagnetic wavelengths on the same order of magnitude as the circuit or device size. Due to the relationship between device and wire size, the circuits require the use of distributed parameter theory. These circuits are considered radio frequency circuits, and their frequencies are not strictly defined. For example, long-distance AC transmission lines (50 or 60 Hz) sometimes require RF theory.

[0129] In the above embodiments, the communication circuit can be understood as a communication module, which is used to realize the sending and receiving of data under a certain communication mode. Based on this, at least two communication circuits can be understood as at least two communication circuits, and the communication modes adopted in the at least two communication circuits are at least two.

[0130] In one embodiment, each communication circuit has a corresponding enable terminal, wherein when the enable terminal is selected, the communication circuit is considered to be selected, that is, the first input can be understood as triggering the enable terminal in the communication circuit.

[0131] In one embodiment, each communication circuit has a communication function, wherein the first input can be understood as activation of the communication function.

[0132] Specifically, for example, the first communication circuit among at least two communication circuits corresponds to the first communication function, and the second communication circuit among at least two communication circuits corresponds to the second communication function. When the activation of the first communication function is received, the first communication circuit is used as the target communication circuit.

[0133] In the above embodiment, the processing unit 306 is specifically used to: configure a channel matching the target communication circuit, the channel corresponding to a frequency control word; and control the frequency synthesizer in the control circuit to generate a frequency signal according to the frequency control word to drive the RF circuit to operate.

[0134] In this embodiment, the frequency synthesizer can be a phase-locked loop frequency synthesizer, wherein the phase-locked loop frequency synthesizer is mainly composed of a high-stability crystal oscillator, a phase detector, a loop filter, a voltage-controlled oscillator, a program divider, a CPU channel selection control circuit, and a lock output control circuit, where fr is the reference frequency and fo is the output frequency.

[0135] When no input signal is applied to the PLL system, the phase detector output is zero, the loop filter output voltage Vd(t) is also zero, and the voltage-controlled oscillator operates at the set center frequency. When an input signal is applied to the PLL, the phase detector compares the input signal's phase and frequency with the VCO output (via a frequency divider), generating an error voltage Vd(t) corresponding to the phase difference between the two signals. This error voltage is filtered and applied to the VCO's control input, reducing the frequency error between the VCO output and the input signal. When the VCO frequency is sufficiently close to the input signal frequency, the closed-loop nature of the PLL forces the VCO to lock to the input signal frequency. Except for a limited phase error, the VCO frequency is identical to the input signal frequency and can automatically track changes in the input frequency. The output frequency of the PLL frequency synthesizer is thus fo = Nfr. The reference frequency fr is derived from a high-stability crystal oscillator divided by a fixed reference frequency.

[0136] For example, assuming a crystal oscillator frequency of 3.2MHz and a fixed frequency coefficient of 128, the reference frequency fr = 3.2MHz / 128 = 25kHz. The microcontroller provides the channel CNC program divider parameters, and by varying the frequency division coefficient N, different frequencies can be obtained. The frequency control word determines which of these frequencies corresponds, ensuring that the output frequency is the frequency signal corresponding to the frequency control word for use by the target communication circuit.

[0137] In the above embodiment, the processing unit 306 is also used to: when the target communication circuit needs to send data, control the control circuit to switch from the standby state to the sending state corresponding to the target communication circuit, in which the frequency synthesizer is locked, the sending channel corresponding to the target communication circuit is turned on, and the receiving channel corresponding to the target communication circuit is turned off; when the target communication circuit needs to receive data, control the control circuit to switch from the standby state to the sending state corresponding to the target communication circuit, in which the frequency synthesizer is locked, the receiving channel corresponding to the target communication circuit is turned on, and the sending channel corresponding to the target communication circuit is turned off.

[0138] In this embodiment, a control circuit is used to switch between different states so that the frequency synthesizer can lock the channel and then use the target communication circuit to transmit and receive data.

[0139] Furthermore, in the above embodiment, the transmission channel is only opened when there is a need to transmit data, so as to reduce the opening of the channel, so that the frequency synthesizer is always in operation, resulting in excessive power consumption of the frequency synthesizer.

[0140] It is worth pointing out that when there is a need to send data, that is, when the sending channel is opened, the receiving channel is closed at the same time, avoiding the simultaneous opening of the two channels and confusion in data sending and receiving, thereby ensuring the stability of the target communication circuit operation.

[0141] Similarly, when there is a need to receive data, that is, when the receiving channel is opened, the sending channel is closed at the same time, avoiding the simultaneous opening of the two channels and confusion in data sending and receiving, thereby ensuring the stability of the target communication circuit operation.

[0142] In the above embodiment, the processing unit 306 is also used to: when the target communication circuit stops running, switches the target communication circuit, or switches the channel, control the control circuit to switch to the standby state; in the standby state, the frequency synthesizer cancels the lock and closes the sending channel and receiving channel corresponding to the target communication circuit.

[0143] In this embodiment, the control circuit is controlled to enter the standby state, so as to reduce the standby power consumption of the radio frequency control circuit and, at the same time, reduce the channel occupancy.

[0144] In the above embodiment, the target communication circuit stops operating, which can be understood as the end of operation. Exemplarily, data interaction has been completed using the target communication circuit, such as feedback data has been received after sending data.

[0145] In the above embodiment, switching the target communication circuit may be understood as switching the selected object of the target communication circuit from the first communication circuit to the second communication circuit among the at least two communication circuits.

[0146] In one embodiment, switching channels may be understood as switching an enabled channel from a sending channel to a receiving channel, or from a receiving channel to a sending channel.

[0147] In the above embodiment, the processing unit is further configured to: control the control circuit to run a calibration mode, and exit the calibration mode after calibration of the radio frequency circuit is completed.

[0148] In this embodiment, the calibration mode is run to calibrate the radio frequency circuit, thereby ensuring stable operation of the radio frequency circuit and achieving accurate data transmission.

[0149] In one embodiment, a calibration program is stored in the control circuit, and after the calibration program is completed, the radio frequency circuit calibration is completed.

[0150] In the above embodiment, in the calibration mode, one or more of the following calibrations are performed: DC signal calibration, orthogonal demodulation calibration, and power calibration.

[0151] In the above embodiment, the at least two communication circuits include: a Bluetooth communication circuit and a Wi-Fi circuit.

[0152] In one embodiment, a control device for a radio frequency control circuit is provided, comprising: a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of any of the above methods are implemented.

[0153] In one embodiment, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of any of the above methods are implemented.

[0154] In one embodiment, a radio frequency control circuit is provided, comprising: a control device as any of the above radio frequency control circuits; and / or a readable storage medium as described above.

[0155] In one embodiment, a radio frequency control circuit is provided, comprising: at least two communication circuits; a radio frequency circuit; and a control circuit connected to each of the at least two communication circuits and the radio frequency circuit, for performing steps of controlling the radio frequency control circuit as described above.

[0156] In one embodiment, a chip is provided, comprising: the radio frequency control circuit as described above.

[0157] In one embodiment, a control logic of a radio frequency control circuit is proposed, specifically including:

[0158] After the chip is powered on, the control circuit is in the initialization state. After the crystal oscillator clock stabilizes, the PLL (phase-locked loop) is turned on. After the PLL is locked, the control circuit enters the standby state.

[0159] Configure the RF state control circuit to enter calibration mode, perform DC calibration, IQ calibration, and power calibration of the RF circuit in sequence, and then exit calibration mode.

[0160] In RF standby mode, if WiFi or Bluetooth is enabled, the corresponding channel frequency control word is configured and the frequency synthesizer is turned on. If WiFi is in receive mode, the system switches to receive mode, and then switches to transmit mode based on the WiFi transmit / receive status. WiFi then switches between transmit and receive modes based on system needs. If Bluetooth is in Bluetooth mode, the system switches directly to transmit or receive mode based on the transmit / receive status. Once transmission and reception are complete, the system returns to RF standby mode.

[0161] Bluetooth and WiFi share a control system and RF circuit, integrating multiple calibration algorithms of RF circuits, which can effectively reduce the chip area and power consumption and effectively improve the overall performance of the chip.

[0162] Specifically, if Figure 4 As shown, C1 indicates that after the PLL is enabled and locked, the control circuit enters the RF circuit standby state from the RF circuit initialization state.

[0163] C2 indicates that when calibration is required, the software controls the circuit to enter the RF circuit calibration state from the RF circuit standby state, and performs corresponding DC calibration, IQ calibration and power calibration of the RF circuit.

[0164] C3 indicates that when the calibration is completed, the software control circuit enters the RF circuit standby state from the RF circuit calibration state.

[0165] C4 indicates that when WiFi or Bluetooth is enabled, the frequency control word of the selected channel is configured, the frequency synthesizer is turned on, and the control circuit enters the frequency synthesizer standby state from the RF circuit standby state.

[0166] C5 indicates that in WiFi mode, when the frequency synthesizer is locked, the receiving path is opened and the control circuit enters the WiFi receiving state from the frequency synthesizer standby state.

[0167] C6 indicates that when WiFi needs to send a packet, the receiving path is closed and the transmitting path is opened, and the control circuit enters the WiFi transmitting state from the WiFi receiving state.

[0168] C7 indicates that after the WiFi has sent the packet, the transmitting path is closed and the receiving path is opened, and the control circuit enters the WiFi receiving state from the WiFi transmitting state.

[0169] C8 indicates that when WiFi is turned off or Bluetooth needs to work or the channel is switched, the transmit and receive paths are turned off, and the control circuit enters the RF circuit standby state from the WiFi receive state.

[0170] C9 indicates that when WiFi is turned off or Bluetooth needs to work or the channel is switched, the control circuit enters the RF circuit standby state from the WiFi transmission state.

[0171] C10 indicates that in the Bluetooth transmission mode, when the frequency synthesizer is locked, the transmission path is opened and the control circuit enters the Bluetooth transmission state from the frequency synthesizer standby state.

[0172] C11 indicates that after the Bluetooth transmission is completed, the transmission path is closed and the control circuit enters the RF circuit standby state from the Bluetooth transmission state.

[0173] C12 indicates that in the Bluetooth receiving mode, when the frequency synthesizer is locked, the receiving and transmitting path is opened, and the control circuit enters the Bluetooth receiving state from the frequency synthesizer standby state.

[0174] C13 indicates that after the Bluetooth reception is completed, the receiving path is closed and the control circuit enters the RF circuit standby state from the Bluetooth reception state.

[0175] In one embodiment, an electronic device is provided, comprising: any one of the above-mentioned radio frequency control circuits; and / or the above-mentioned chip.

[0176] In the above embodiment, the electronic device is an Internet of Things device.

[0177] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0178] In the textual description of the present invention, it can be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description of the embodiments of the present invention, rather than indicating or implying that the structures, devices, and elements referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, these descriptions cannot be understood as limiting the present invention.

[0179] In the description of the present invention, it is understood that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection between two components or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0180] In the claims, specification and drawings of the present invention, the term "plurality" refers to two or more. Unless otherwise expressly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the purpose of more conveniently describing the present invention and making the description process simpler. It is not intended to indicate or imply that the device or element referred to must have the specific orientation described, be constructed and operate in a specific orientation. Therefore, these descriptions cannot be understood as limiting the present invention. The terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0181] In the claims, specification, and drawings of the present invention, the terms "one embodiment," "some embodiments," "a specific embodiment," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification, and drawings of the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0182] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A control method for a radio frequency control circuit, characterized in that: The radio frequency control circuit includes: at least two communication circuits; a radio frequency circuit; and a control circuit connected to each of the at least two communication circuits and the radio frequency circuit. The control method of the radio frequency control circuit includes: receiving a first input to the at least two communication circuits; determining a target communication circuit among the at least two communication circuits in response to the first input; controlling the control circuit to operate in a mode corresponding to the target communication circuit to drive the radio frequency circuit to operate; Controlling the control circuit to operate in a mode corresponding to the target communication circuit specifically includes: Configuring a channel that matches the target communication circuit, wherein the channel corresponds to a frequency control word; Controlling the frequency synthesizer in the control circuit to generate a frequency signal according to the frequency control word to drive the radio frequency circuit to operate; Each communication circuit has a communication function, and the first input is used to enable the communication function; The at least two communication circuits include: a Bluetooth communication circuit and a Wi-Fi circuit; When the control circuit is in an initialization state and the crystal oscillator clock is stable, the phase-locked loop is turned on, and after the phase-locked loop is locked, the control circuit enters a standby state; In the standby state, if the Wi-Fi circuit or the Bluetooth communication circuit is enabled, the corresponding channel frequency control word is configured and the frequency synthesizer is turned on; If the control circuit is in Wi-Fi mode, it switches to the receiving state, and then determines whether to switch to the sending state according to the sending and receiving state of the Wi-Fi circuit; if the control circuit is in Bluetooth mode, it directly switches to the sending state or the receiving state according to the sending and receiving state of the Bluetooth communication circuit; when sending and receiving are completed, the control circuit returns to the standby state.

2. The control method of the radio frequency control circuit according to claim 1, characterized in that: Also includes: When the target communication circuit needs to send data, controlling the control circuit to switch from a standby state to a sending state corresponding to the target communication circuit, wherein in the sending state, the frequency synthesizer is locked, the sending channel corresponding to the target communication circuit is opened, and the receiving channel corresponding to the target communication circuit is closed; When the target communication circuit needs to receive data, the control circuit is controlled to switch from the standby state to the receiving state corresponding to the target communication circuit. In the receiving state, the frequency synthesizer is locked, the receiving channel corresponding to the target communication circuit is opened, and the sending channel corresponding to the target communication circuit is closed.

3. The control method of the radio frequency control circuit according to claim 2, characterized in that: When the target communication circuit stops operating, the target communication circuit is switched, or the channel is switched, controlling the control circuit to switch to the standby state; In the standby state, the frequency synthesizer cancels the lock and closes the sending channel and the receiving channel corresponding to the target communication circuit.

4. The control method of the radio frequency control circuit according to any one of claims 1 to 3, characterized in that: Before a target communication circuit among the at least two communication circuits is selected, the method further includes: The control circuit is controlled to run a calibration mode, and after the calibration of the radio frequency circuit is completed, the calibration mode is exited.

5. The control method of the radio frequency control circuit according to claim 4, characterized in that: In the calibration mode, perform one or more of the following calibrations: DC signal calibration, quadrature demodulation calibration, power calibration.

6. A control device for a radio frequency control circuit, characterized in that: The radio frequency control circuit includes: at least two communication circuits; a radio frequency circuit; a control circuit connected to each of the at least two communication circuits and the radio frequency circuit, and the control device of the radio frequency control circuit includes: a receiving unit, configured to receive a first input to the at least two communication circuits; a response unit, configured to determine a target communication circuit among the at least two communication circuits in response to the first input; a processing unit, configured to control the control circuit to operate in a mode corresponding to the target communication circuit, so as to drive the radio frequency circuit to operate; The processing unit is specifically configured to configure a channel matching the target communication circuit, the channel corresponding to a frequency control word; control a frequency synthesizer in the control circuit to generate a frequency signal according to the frequency control word to drive the radio frequency circuit to operate; Each communication circuit has a communication function, and the first input is used to enable the communication function; The at least two communication circuits include: a Bluetooth communication circuit and a Wi-Fi circuit; When the control circuit is in an initialization state and the crystal oscillator clock is stable, the phase-locked loop is turned on, and after the phase-locked loop is locked, the control circuit enters a standby state; In the standby state, if the Wi-Fi circuit or the Bluetooth communication circuit is enabled, the corresponding channel frequency control word is configured and the frequency synthesizer is turned on; If the control circuit is in Wi-Fi mode, it switches to the receiving state, and then determines whether to switch to the sending state according to the sending and receiving state of the Wi-Fi circuit; if the control circuit is in Bluetooth mode, it directly switches to the sending state or the receiving state according to the sending and receiving state of the Bluetooth communication circuit; when sending and receiving are completed, the control circuit returns to the standby state.

7. A control device for a radio frequency control circuit, characterized in that: include: A processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 5 are implemented.

8. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

9. A radio frequency control circuit, characterized in that: include: The control device of the radio frequency control circuit according to claim 6 or 7; and / or The readable storage medium according to claim 8.

10. A radio frequency control circuit, characterized in that: include: at least two communication circuits; RF circuits; A control circuit is connected to each of the at least two communication circuits and the radio frequency circuit, and is used to perform the steps of controlling the radio frequency control circuit according to any one of claims 1 to 5.

11. A chip, characterized in that: include: The radio frequency control circuit according to claim 9 or 10.

12. An electronic device, characterized in that: include: The radio frequency control circuit according to claim 9 or 10; and / or The chip according to claim 11.

13. The electronic device according to claim 12, wherein: The electronic device is an Internet of Things device.

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