Control circuit and control method, device and equipment thereof, and storage medium

Abstract

The present disclosure provides a control circuit and a control method, device, equipment and storage medium thereof. The control circuit controls a radio frequency transceiver to output radio frequency signals of different frequency bands on different signal transmission paths. A coupler on a corresponding signal transmission path obtains a coupling signal of the corresponding transmission path and transmits the coupling signal to a first feedback receiving end of the radio frequency transceiver through a corresponding coupling path. When the second switch is connected to the corresponding coupling path, the opening and closing timing of the at least one first switch and the second switch is controlled, so that the superposition waveform of the at least one first switch and the second switch meets the waveform condition, which can effectively reduce the noise caused by switch switching during switching of different coupling paths.

Description

Technical Field

[0001] This disclosure relates to the field of communications, and more particularly to a control circuit and its control method, apparatus, device, and storage medium. Background Technology

[0002] In current RF circuit designs, the platform only provides one power feedback receiver (FBRX) port. Power feedback for each bandwidth needs to be combined through a switch to the FBRX port of the platform transceiver. This design introduces nonlinear noise due to the rapid switching of the switch, which in turn causes reception interference in the main channel receiver band. Summary of the Invention

[0003] This disclosure provides a control circuit, control method, device, equipment, and storage medium thereof.

[0004] According to a first aspect of this disclosure, a control circuit is provided, comprising:

[0005] Radio frequency transceivers output radio frequency signals in different frequency bands through multiple signal transmission paths;

[0006] Multiple couplers are respectively set for the signal transmission path, and are used to obtain the coupling signal of the corresponding transmission path and transmit it to the first feedback receiving end of the radio frequency transceiver through the coupling path;

[0007] The second switch has one end connected to the first feedback receiver of the RF transceiver, and the other end can switch to connect to multiple coupling paths.

[0008] At least one first switch is disposed in at least one coupling path and connected in series with the second switch;

[0009] The controller is used to control the opening and closing sequence of the at least one first switch and the second switch when switching the second switch to be connected to the corresponding coupling path, so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, thereby reducing the noise caused by the switching.

[0010] In one embodiment of this application, the controller is further configured to: control the simultaneous on-time of the at least one first switch and the second switch to be greater than a first duration threshold, so that the coupling signal of the corresponding transmission path can be transmitted to the first feedback receiving end of the radio frequency transceiver.

[0011] In one embodiment of this application, controlling the opening and closing timing of the at least one first switch and the second switch such that the superimposed waveform of the at least one first switch and the second switch satisfies a waveform condition includes the controller being used to:

[0012] The opening time of at least one first switch and the second switch is controlled to satisfy a first time interval, and / or the closing time of at least one first switch and the second switch is controlled to satisfy a second time interval, so that the superimposed waveform satisfies the waveform condition.

[0013] In one embodiment of this application, the waveform conditions include a first waveform condition, a second waveform condition, and a third waveform condition. The first waveform condition includes the rising edge of the superimposed waveform exhibiting a first step characteristic and the falling edge exhibiting a first straight line characteristic. The second waveform condition includes the rising edge of the superimposed waveform exhibiting a second straight line characteristic and the falling edge exhibiting a second step characteristic. The third waveform condition includes the rising edge of the superimposed waveform exhibiting a third step characteristic and the falling edge exhibiting a fourth step characteristic.

[0014] In one embodiment of this application, the at least one switch includes two first switches, and controlling the opening and closing sequence of the at least one first switch and the second switch such that the superimposed waveform of the at least one first switch and the second switch satisfies a waveform condition includes:

[0015] The first switch is opened sequentially, followed by the second switch, then the second switch, then the second switch, then the second switch, then the second switch, then the first switch, and so on, so that the rising and falling edges of the superimposed waveform have multiple step periods to satisfy the waveform conditions.

[0016] According to a second aspect of this disclosure, a control method is provided, based on a control circuit, the method comprising:

[0017] Control the radio frequency transceiver to output radio frequency signals of different frequency bands on different signal transmission paths;

[0018] The coupling signal of the corresponding transmission path is obtained through the coupler on the corresponding signal transmission path and transmitted to the first feedback receiving end of the radio frequency transceiver through the corresponding coupling path.

[0019] In this embodiment, at least one first switch is provided in at least one coupling path, which can be connected in series with a second switch. One end of the second switch is connected to the first feedback receiving end of the radio frequency transceiver, and the other end can be switched to be connected to multiple coupling paths.

[0020] When switching the second switch to connect with the corresponding coupling path, the opening and closing timing of the at least one first switch and the second switch is controlled so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, thereby reducing the noise caused by the switching.

[0021] In one embodiment of this application, controlling the opening and closing timing of the at least one first switch and the second switch includes: controlling the simultaneous on-time of the at least one first switch and the second switch to be greater than a first time duration threshold, so that the coupling signal of the corresponding transmission path can be transmitted to the first feedback receiving end of the radio frequency transceiver.

[0022] In one embodiment of this application, controlling the opening and closing timing of the at least one first switch and the second switch so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition includes: controlling the opening time of the at least one first switch and the second switch to satisfy a first time interval, and / or controlling the closing time of the at least one first switch and the second switch to satisfy a second time interval, so that the superimposed waveform satisfies the waveform condition.

[0023] In one embodiment of this application, the waveform conditions include a first waveform condition, a second waveform condition, and a third waveform condition. The first waveform condition includes the rising edge of the superimposed waveform exhibiting a first step characteristic and the falling edge exhibiting a first straight line characteristic. The second waveform condition includes the rising edge of the superimposed waveform exhibiting a second straight line characteristic and the falling edge exhibiting a second step characteristic. The third waveform condition includes the rising edge of the superimposed waveform exhibiting a third step characteristic and the falling edge exhibiting a fourth step characteristic.

[0024] In one embodiment of this application, the at least one switch includes two first switches. The control of the opening and closing timing of the at least one first switch and the second switch, such that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, includes: sequentially controlling the first first switch to open, the second first switch to open, the second switch to open, the second switch to close, the second first switch to close, and the first switch to close, so that the rising edge and falling edge of the superimposed waveform have multiple step time periods to satisfy the waveform condition.

[0025] According to a third aspect of this disclosure, a control device is provided, based on a control circuit, the device comprising:

[0026] The output module is used to control the RF transceiver to output RF signals of different frequency bands on different signal transmission paths;

[0027] The acquisition module is used to obtain the coupling signal of the corresponding transmission path through the coupler on the corresponding signal transmission path and transmit it to the first feedback receiving end of the radio frequency transceiver through the corresponding coupling path; wherein, at least one coupling path is provided with at least one first switch, which can be connected in series with a second switch, one end of the second switch is connected to the first feedback receiving end of the radio frequency transceiver, and the other end can be switched to be connected to multiple coupling paths.

[0028] The switching control module is used to control the opening and closing timing of the at least one first switch and the second switch when switching the second switch to connect with the corresponding coupling path, so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, thereby reducing the noise caused by the switching.

[0029] In one embodiment of this application, the switching control module is specifically used to: control the simultaneous on-time of the at least one first switch and the second switch to be greater than a first duration threshold, so that the coupling signal of the corresponding transmission path can be transmitted to the first feedback receiving end of the radio frequency transceiver.

[0030] In one embodiment of this application, the switching control module is specifically used to: control the opening time of at least one first switch and the second switch to satisfy a first time interval, and / or control the closing time of at least one first switch and the second switch to satisfy a second time interval, so that the superimposed waveform satisfies the waveform condition.

[0031] In one embodiment of this application, the waveform conditions include a first waveform condition, a second waveform condition, and a third waveform condition. The first waveform condition includes the rising edge of the superimposed waveform exhibiting a first step characteristic and the falling edge exhibiting a first straight line characteristic. The second waveform condition includes the rising edge of the superimposed waveform exhibiting a second straight line characteristic and the falling edge exhibiting a second step characteristic. The third waveform condition includes the rising edge of the superimposed waveform exhibiting a third step characteristic and the falling edge exhibiting a fourth step characteristic.

[0032] In one embodiment of this application, the at least one switch includes two first switches. The switching control module is specifically used to: sequentially control the first first switch to open, the second first switch to open, the second switch to open, the second switch to close, the second first switch to close, and the first switch to close, so that the rising and falling edges of the superimposed waveform have multiple step time periods to satisfy the waveform conditions.

[0033] According to a fourth aspect of this disclosure, an electronic device is provided, comprising:

[0034] At least one processor; and

[0035] A memory communicatively connected to the at least one processor; wherein,

[0036] The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the methods described in this disclosure.

[0037] According to a fifth aspect of this disclosure, a non-transitory computer-readable storage medium is provided storing computer instructions for causing the computer to perform the methods described in this disclosure.

[0038] The control circuit, control method, apparatus, device, and storage medium disclosed herein control the radio frequency transceiver to output radio frequency signals of different frequency bands on different signal transmission paths; obtain the coupling signal of the corresponding transmission path through the coupler on the corresponding signal transmission path and transmit it to the first feedback receiving end of the radio frequency transceiver through the corresponding coupling path; when switching the second switch to connect with the corresponding coupling path, control the opening and closing timing of the at least one first switch and the second switch so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, which can effectively reduce the noise caused by switch switching during the switching of different coupling paths.

[0039] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0040] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:

[0041] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0042] Figure 1 A schematic diagram of an exemplary control circuit structure provided in an embodiment of this disclosure is shown. Figure 1 ;

[0043] Figure 2 A schematic diagram of an exemplary control circuit structure provided in an embodiment of this disclosure is shown. Figure 2 ;

[0044] Figure 3 A schematic diagram of an exemplary control circuit structure provided in an embodiment of this disclosure is shown. Figure 3 ;

[0045] Figure 4 A schematic diagram of an exemplary control circuit structure provided in an embodiment of this disclosure is shown. Figure 4 ;

[0046] Figure 5 A schematic diagram of superimposed waveforms of an exemplary first switch and a second switch provided in the prior art is shown;

[0047] Figure 6 It shows Figure 5 A schematic diagram illustrating the noise detected by the control switch method;

[0048] Figure 7 This illustration shows a superimposed waveform of an exemplary first switch and a second switch provided in an embodiment of this disclosure. Figure 1 ;

[0049] Figure 8 This illustration shows a superimposed waveform of an exemplary first switch and a second switch provided in an embodiment of this disclosure. Figure 2 ;

[0050] Figure 9 This illustration shows a superimposed waveform of an exemplary first switch and a second switch provided in an embodiment of this disclosure. Figure 3 ;

[0051] Figure 10 It shows Figure 9 A schematic diagram illustrating the noise detected by the control switch method;

[0052] Figure 11 This illustration shows a schematic diagram of the superimposed waveforms of two exemplary first switches and a second switch provided in an embodiment of this disclosure;

[0053] Figure 12 A flowchart of a control method provided by an embodiment of this disclosure is shown;

[0054] Figure 13 A schematic diagram of the structure of a control device for a control circuit provided in an embodiment of this disclosure is shown;

[0055] Figure 14 A schematic diagram of the composition structure of an electronic device according to an embodiment of the present disclosure is shown. Detailed Implementation

[0056] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0057] Figure 1 A schematic diagram of an exemplary control circuit structure provided in this disclosure embodiment. Figure 1 It includes an RF transceiver 110, a coupling path, a second switch 130, a controller 140, and multiple signal transmission paths 150.

[0058] The radio frequency transceiver 110 includes a first feedback receiver 111, and a controller 140 controls the radio frequency transceiver 110 and all switches. A third switch 151 is provided on the signal transmission path 150 to control the transmission of radio frequency signals to each sub-circuit; a second switch is used to switch different coupling paths; at least one first switch is used to coordinate with the opening and closing timing of the second switch to reduce noise caused by switching different coupling paths. The coupling paths exemplarily include coupling path one 121, coupling path two 122, coupling path three 123, and coupling path four 124. It should be noted that... Figure 1 The internal circuitry of the coupling path is illustrated using only two examples. Coupling path one 121 includes at least one first switch 1211, a coupler 1212, and multiple sub-circuits 1213; coupling path two 122 includes a coupler 1221 and multiple sub-circuits 1222. Wherein,

[0059] The radio frequency transceiver 110 outputs radio frequency signals of different frequency bands through multiple signal transmission paths;

[0060] Multiple couplers are respectively set for the signal transmission path, and are used to obtain the coupling signal of the corresponding transmission path and transmit it to the first feedback receiving end 111 of the radio frequency transceiver 110 through the coupling path;

[0061] The second switch 130 has one end connected to the first feedback receiver 111 of the RF transceiver 110, and the other end can switch to connect to multiple coupling paths.

[0062] At least one first switch is disposed in at least one coupling path and connected in series with the second switch 130;

[0063] The controller 140 is used to control the opening and closing sequence of the at least one first switch and the second switch when switching the second switch 130 to be connected to the corresponding coupling path, so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, thereby reducing the noise caused by the switching.

[0064] The radio frequency (RF) transceiver plays a crucial role in wireless communication systems. The RF signal is the signal normally transmitted by the RF transceiver. The signal transmission path contains multiple couplers and sub-circuits, each corresponding to a more refined transmission path within a different frequency band. A coupler is a device that couples the signals transmitted within the signal transmission path to form a coupled signal, which is used to feed back the coupled signal to the first feedback receiver within the RF transceiver. The circuit where the coupled signal is fed back is located. The controller is used to control the opening and closing timing of the second switch and at least one first switch, as well as signal transmission and reception control logic. The first feedback receiver is used to receive the coupled signal and transmit it to the RF transceiver to determine if the coupled signal meets the requirements.

[0065] Specifically, the RF transceiver 110 transmits RF signals of different frequency bands through the third switch 151, and transmits them through multiple signal transmission paths 150. Each sub-circuit can share one or more antennas. Figure 1 The antenna (not shown) is used to receive radio frequency (RF) signals in the corresponding frequency band. The RF transceiver 110 can output RF signals in different frequency bands, such as low-frequency, mid-frequency, and ultra-high-frequency RF signals. Since the RF transceiver does not know whether the transmitted RF signal meets the requirements, a coupler is needed for each signal transmission channel. The coupler acquires the coupled signal within the corresponding signal transmission channel and transmits it to the RF transceiver through the coupling path to detect whether the transmitted RF signal meets the requirements. More specifically, in this embodiment, the first feedback receiver 111 on the RF transceiver 110 receives the power of the coupled signal transmitted in the corresponding coupling path to determine if it meets the requirements.

[0066] Since the system needs to periodically check whether the RF signals transmitted by the RF transceiver in each signal transmission path are qualified, each transmission path needs to be checked sequentially. Therefore, in the process of checking whether the coupling signal of different frequency band signal transmission channels is qualified, it is necessary to switch the second switch to connect with the corresponding coupling path. However, when switching between different coupling paths, the rapid switching of the switch will cause nonlinear noise. This noise is then returned to the coupling path through the coupler, causing reception interference. Therefore, in order to reduce the noise caused by the switching circuit, at least one first switch can be set in the coupling path in this embodiment. By controlling the opening and closing sequence of at least one first switch and the second switch, the superimposed waveform in the power square wave detected by the transmission coupling signal can meet the waveform conditions, thereby reducing the noise caused by switching.

[0067] Specifically, in this embodiment, at least one first switch can be provided in each coupling path to reduce noise when it transmits coupled signals as a coupling circuit, such as... Figure 2 As shown, Figure 2 A schematic diagram of an exemplary control circuit provided for embodiments of this disclosure. Figure 2 ,like Figure 2 As shown, it includes coupling path one 221, coupling path two 222, coupling path three 223, and coupling path four 224, which correspond to low-frequency band radio frequency signals, first intermediate frequency band radio frequency signals, second intermediate frequency band radio frequency signals, and ultra-high frequency band radio frequency signals conventionally set in the field of wireless communication, respectively. Since this embodiment can set at least one first switch in the coupling path of each frequency band to reduce switching noise when transmitting coupled signals, coupling path one 221 includes at least one first switch 2211, coupler 2212, and multiple sub-circuits 2213; coupling path two 222 includes at least one first switch 2221, coupler 2222, and multiple sub-circuits 2223; coupling path three 223 includes at least one first switch 2231, coupler 2232, and multiple sub-circuits 2233; coupling path four 224 includes at least one first switch 2241, coupler 2242, and multiple sub-circuits 2243.

[0068] Specifically, in this embodiment, at least one first switch can be set in one of the two or three coupling paths with significant noise impact during the switching process to reduce switching noise when transmitting coupling signals, such as... Figure 3 As shown. Figure 3 A schematic diagram of an exemplary control circuit provided for embodiments of this disclosure. Figure 3 ,like Figure 3 As shown, it includes coupling path one 321, coupling path two 322, coupling path three 323, and coupling path four 324, which correspond to low-frequency band radio frequency signals, first intermediate frequency band radio frequency signals, second intermediate frequency band radio frequency signals, and ultra-high frequency band radio frequency signals conventionally set in the field of wireless communication, respectively. Since the switching noise is greater at lower frequency bands, this embodiment includes at least one first switch in the coupling paths corresponding to the low-frequency band radio frequency signals, the first intermediate frequency band radio frequency signals, and the second intermediate frequency band radio frequency signals. Specifically, as shown... Figure 3 Within the coupling path 321, coupling path one includes at least one first switch 3211, coupler 3212, and multiple sub-circuits 3213; coupling path two includes at least one first switch 3221, coupler 3222, and multiple sub-circuits 3223; coupling path three includes at least one first switch 3231, coupler 3232, and multiple sub-circuits 3233; coupling path four includes coupler 3241 and multiple sub-circuits 3242.

[0069] Furthermore, since the switching noise is greatest when the coupling path of the low-frequency radio frequency signal is connected to the second switch, this embodiment can also include at least one first switch within the coupling path of the low-frequency radio frequency signal. For example... Figure 4 As shown, Figure 4 A schematic diagram of an exemplary control circuit provided for embodiments of this disclosure. Figure 4 .like Figure 4 As shown, it includes coupling path one 421, coupling path two 422, coupling path three 423, and coupling path 424, which correspond to low-frequency band radio frequency signals, first intermediate frequency band radio frequency signals, second intermediate frequency band radio frequency signals, and ultra-high frequency band radio frequency signals conventionally set in the field of wireless communication, respectively. Since the switching noise is greater when the coupling path in the lower frequency band connects with the second switch, this embodiment includes at least one first switch in the coupling path corresponding to the low-frequency band radio frequency signal. Specifically, as shown... Figure 4 Within the coupling path 421, coupling path one includes at least one first switch 4211, coupler 4212, and multiple sub-circuits 4213; coupling path two includes coupler 4221 and multiple sub-circuits 4222; coupling path three includes coupler 4231 and multiple sub-circuits 4232; coupling path four includes coupler 4241 and multiple sub-circuits 4242.

[0070] It should be noted that, according to the actual situation, this embodiment can flexibly decide whether to set at least one first switch in each coupling path.

[0071] In this embodiment of the present disclosure, the controller is further configured to: control the simultaneous on-time of the at least one first switch and the second switch to be greater than a first duration threshold, so that the coupling signal of the corresponding transmission path can be transmitted to the first feedback receiving end of the radio frequency transceiver.

[0072] The first duration threshold can be a duration threshold related to parameters such as the circuit complexity and path length of the current coupling path, and can be any value.

[0073] Because when the second switch is connected to the corresponding coupling path, the coupled signal transmitted on the coupling path needs a certain amount of time to reach the first feedback receiver of the RF transceiver. Therefore, this embodiment needs to set a first duration threshold to ensure that the simultaneous on-time of at least one first switch and the second switch is greater than the first duration threshold, so as to ensure that the coupling path containing the coupled signal has sufficient transmission time, thereby ensuring that the RF transceiver can detect the coupled signal subsequently. That is, in this embodiment, during the process of switching the second switch to different coupling paths to check whether the RF signals transmitted in each signal transmission path are normal, it is necessary to ensure that the path duration of the corresponding coupling path after each switch exceeds the first duration threshold.

[0074] In this embodiment of the disclosure, controlling the opening and closing timing of the at least one first switch and the second switch such that the superimposed waveform of the at least one first switch and the second switch satisfies a waveform condition includes the controller being configured to: control the opening time of the at least one first switch and the second switch to satisfy a first time interval, and / or control the closing time of the at least one first switch and the second switch to satisfy a second time interval, so that the superimposed waveform satisfies the waveform condition.

[0075] The first and second time slots can be time slots related to the current coupling path, and this embodiment does not limit their specific values.

[0076] Specifically, in this embodiment, to ensure that the superimposed waveform of at least one first switch and the second switch meets the waveform conditions, it is necessary to control the opening and closing timing of at least one first switch and the second switch. For example, this embodiment could control the opening time of at least one first switch and the second switch to satisfy a first time interval, and their closing time to be the same; or, for another example, this embodiment could control the opening time of at least one first switch and the second switch to be the same, and their closing time to satisfy a second time interval; or, for yet another example, this embodiment could control the opening time of at least one first switch and the second switch to satisfy a first time interval, and their closing time to satisfy a second time interval. In short, as long as the timing control ensures that the superimposed waveform of the first switch and the second switch meets the waveform conditions, it is acceptable.

[0077] It should be noted that in this embodiment, it is sufficient to ensure that the opening and closing of at least one first switch and the second switch meet the corresponding time intervals; the order of the at least one first switch and the second switch is not limited. Furthermore, if there is only one first switch in the current coupling path, then the opening and closing of the first switch and the second switch only need to meet the corresponding time intervals; if there are multiple first switches in the current coupling path, then the opening and closing of the multiple first switches and the second switch only need to meet the corresponding overall time intervals.

[0078] In this embodiment of the disclosure, the waveform conditions include a first waveform condition, a second waveform condition, and a third waveform condition. The first waveform condition includes the rising edge of the superimposed waveform exhibiting a first step characteristic and the falling edge exhibiting a first straight line characteristic. The second waveform condition includes the rising edge of the superimposed waveform exhibiting a second straight line characteristic and the falling edge exhibiting a second step characteristic. The third waveform condition includes the rising edge of the superimposed waveform exhibiting a third step characteristic and the falling edge exhibiting a fourth step characteristic.

[0079] Figure 5 This is a schematic diagram of the superimposed waveforms of an exemplary first switch and a second switch provided in the prior art. It should be noted that the prior art only has a second switch. For ease of understanding, this embodiment uses... Figure 5 Taking the first power square wave as an example, at time t1, the second switch switches with a certain coupling path. Due to the delay in the switch opening, the power detected in the time intervals t1 and t2 exhibits a rising edge linear characteristic. The power detected in the time intervals t2 and t3 belongs to the state where the coupling path is in the closed state. During this time interval, the path duration of the coupling path needs to be kept greater than the first duration threshold. At time t3, the second switch of the coupling path closes, so the power detected in the time intervals t3 and t4 exhibits a falling edge linear characteristic.

[0080] It should be noted that even if a first switch is provided within the coupling path, and the first and second switches are simultaneously opened and closed, the detected power square wave characteristics will still be the same as those of the previous one. Figure 5 Same. For example... Figure 6 As shown, Figure 6 for Figure 5 A schematic diagram of the noise detected by the control switch method.

[0081] Figure 7 A schematic diagram of the superimposed waveform of an exemplary first switch and a second switch provided in an embodiment of this disclosure. Figure 1 This embodiment uses a first switch as an example for illustration. The overlapping waveform is detected when the opening times of the first switch and the second switch satisfy a first time interval and their closing times are the same. For example... Figure 7 As shown, since the opening times of the first switch and the second switch meet the first time interval X1 and they are not opened simultaneously, the rising edge of the power waveform detected in the time intervals t1 and t2 exhibits the first step characteristic; while at time t3, since the first switch and the second switch are closed simultaneously, the falling edge of the power waveform detected in the time intervals t3 and t4 exhibits the first straight line characteristic.

[0082] Figure 8 A schematic diagram of the superimposed waveform of an exemplary first switch and a second switch provided in an embodiment of this disclosure. Figure 2 This embodiment still uses a first switch as an example for explanation. The opening times of the first switch and the second switch are the same, and their closing times satisfy the second time interval. For example... Figure 8 As shown, since the opening times of the first and second switches are the same, the rising edge of the power waveform detected in the time intervals t1 and t2 exhibits the characteristics of a second straight line; while at time t3, since the closing times of the first and second switches satisfy the second time interval X2 and they do not close simultaneously, the falling edge of the power waveform detected in the time intervals t3 and t4 exhibits the characteristics of a second step.

[0083] Figure 9 A schematic diagram of the superimposed waveform of an exemplary first switch and a second switch provided in an embodiment of this disclosure. Figure 3This embodiment still uses a first switch as an example for explanation, controlling the opening time of the first switch and the second switch to satisfy a first time interval, and their closing time to satisfy a second time interval. For example... Figure 9 As shown, since the opening times of the first switch and the second switch meet the first time interval X1 and they do not open simultaneously, the rising edge of the power waveform detected in the time intervals t1 and t2 exhibits the third step characteristic; while at time t3, since the closing times of the first switch and the second switch meet the second time interval X2 and they do not close simultaneously, the falling edge of the power waveform detected in the time intervals t3 and t4 exhibits the fourth step characteristic.

[0084] It should be noted that the first and second straight line features in this embodiment can be the same or different; the first, second, third, and fourth step features can also be the same or different, and their specific shapes are not limited. The optimal reference values ​​for the first and second time intervals can be obtained through multiple experiments.

[0085] like Figure 9 As shown, due to the difference in the switching timing of the first and second switches, their switching waveforms are also improved. Not only are the rising and falling edges smoother, but the amplitude of both steps is also reduced. Furthermore, this embodiment... Figure 9 The corresponding noise is detected and obtained Figure 10 . Figure 10 for Figure 9 A schematic diagram illustrating the noise detected by a control switch method. (Example) Figure 10 As shown, the noise generated by its switching is different from that before the improvement. Figure 6 In comparison, the noise reduction is very significant.

[0086] In this embodiment of the disclosure, the at least one switch includes two first switches. Controlling the opening and closing timing of the at least one first switch and the second switch so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition includes: sequentially controlling the first first switch to open, the second first switch to open, the second switch to open, the second switch to close, the second first switch to close, and the first switch to close, so that the rising edge and falling edge of the superimposed waveform have multiple step time periods to satisfy the waveform condition.

[0087] Specifically, this embodiment uses two first switches as an example, with the first and second first switches connected in series. For ease of explanation, this embodiment will still use the detected superimposed waveform as an example. Figure 11 This is a schematic diagram of the superimposed waveforms of two first switches and a second switch, provided as an embodiment of this disclosure. Figure 11As shown, at time t1, the first switch is opened. Due to the delay in the opening operation, a rising edge linear characteristic is formed during the time intervals t1 and t2. In this embodiment, the second switch is opened at time t3. Since the time interval between the opening of the two switches is the time interval between t2 and t3, a step characteristic is formed. Again, due to the delay in the opening operation, a rising edge linear characteristic is formed during the time intervals t3 and t4. In this embodiment, the second switch is opened at time t5. Since the time interval between the opening of the second switch and the second switch is the time interval between t4 and t5, another step characteristic is formed. Again, due to the delay in the opening operation, a rising edge linear characteristic is formed during the time intervals t5 and t6. Similarly, in this embodiment, the second switch is closed sequentially, followed by the second first switch, and then the first switch. A step characteristic is also formed during the time intervals t7 and t8, the process of which will not be described in detail.

[0088] This embodiment uses two first switches as an example to illustrate the principle that the opening and closing times of the two first switches and the second switch meet the corresponding time interval. The switching sequence of the two first switches and the second switch is given as an example, which can effectively reduce switching noise.

[0089] Figure 12 This is a flowchart illustrating a control method provided in an embodiment of the present disclosure. Based on a control circuit, this method can be executed by a control device of the control circuit provided in this embodiment of the disclosure. This device can be implemented in software and / or hardware. Specifically, the method includes:

[0090] S1210 controls the RF transceiver to output RF signals of different frequency bands on different signal transmission paths.

[0091] S1220. The coupling signal of the corresponding transmission path is obtained through the coupler on the corresponding signal transmission path and transmitted to the first feedback receiving end of the radio frequency transceiver through the corresponding coupling path.

[0092] In this embodiment, at least one first switch is provided in at least one coupling path, which can be connected in series with a second switch. One end of the second switch is connected to the first feedback receiving end of the radio frequency transceiver, and the other end can be switched to be connected to multiple coupling paths.

[0093] S1230. When switching the second switch to connect with the corresponding coupling path, control the opening and closing timing of the at least one first switch and the second switch so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, so as to reduce the noise caused by the switching.

[0094] Specifically, in this embodiment, the RF transceiver, during normal operation, outputs RF signals of different frequency bands on different signal transmission paths. These signals are then coupled to the corresponding transmission path's coupler, and transmitted to the RF transceiver's first feedback receiver on the corresponding coupling path. Since this embodiment requires periodic detection of the RF signals transmitted on each transmission path to determine compliance, it necessitates continuously switching the second switch to connect it to the corresponding coupling path. Furthermore, to reduce switching noise caused by the switching, this embodiment controls the opening and closing sequence of at least one first switch and the second switch, ensuring that the superimposed waveforms of the first and second switches meet waveform conditions, thereby reducing noise caused by the switching.

[0095] In this embodiment of the disclosure, controlling the opening and closing timing of the at least one first switch and the second switch includes: controlling the simultaneous on-time of the at least one first switch and the second switch to be greater than a first duration threshold, so that the coupling signal of the corresponding transmission path can be transmitted to the first feedback receiving end of the radio frequency transceiver.

[0096] In this embodiment of the disclosure, controlling the opening and closing timing of the at least one first switch and the second switch so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition includes: controlling the opening time of the at least one first switch and the second switch to satisfy a first time interval, and / or controlling the closing time of the at least one first switch and the second switch to satisfy a second time interval, so that the superimposed waveform satisfies the waveform condition.

[0097] In this embodiment of the disclosure, the waveform conditions include a first waveform condition, a second waveform condition, and a third waveform condition. The first waveform condition includes the rising edge of the superimposed waveform exhibiting a first step characteristic and the falling edge exhibiting a first straight line characteristic. The second waveform condition includes the rising edge of the superimposed waveform exhibiting a second straight line characteristic and the falling edge exhibiting a second step characteristic. The third waveform condition includes the rising edge of the superimposed waveform exhibiting a third step characteristic and the falling edge exhibiting a fourth step characteristic.

[0098] In this embodiment of the disclosure, the at least one switch includes two first switches. Controlling the opening and closing timing of the at least one first switch and the second switch so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition includes: sequentially controlling the first first switch to open, the second first switch to open, the second switch to open, the second switch to close, the second first switch to close, and the first switch to close, so that the rising edge and falling edge of the superimposed waveform have multiple step time periods to satisfy the waveform condition.

[0099] This embodiment controls the RF transceiver to output RF signals of different frequency bands on different signal transmission paths; through the coupler on the corresponding signal transmission path, the coupling signal of the corresponding transmission path is obtained and transmitted to the first feedback receiving end of the RF transceiver through the corresponding coupling path; when switching the second switch to connect with the corresponding coupling path, the opening and closing timing of the at least one first switch and the second switch is controlled so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, which can effectively reduce the noise caused by the switch switching during the switching of different coupling paths.

[0100] Figure 13 This is a schematic diagram of the structure of a control device for a control circuit provided in an embodiment of this disclosure. The device specifically includes:

[0101] Output module 1310 is used to control the RF transceiver to output RF signals of different frequency bands on different signal transmission paths;

[0102] The acquisition module 1320 is used to obtain the coupling signal of the corresponding transmission path through the coupler on the corresponding signal transmission path and transmit it to the first feedback receiving end of the radio frequency transceiver through the corresponding coupling path; wherein, at least one coupling path is provided with at least one first switch, which can be connected in series with a second switch, one end of the second switch is connected to the first feedback receiving end of the radio frequency transceiver, and the other end can be switched to be connected to multiple coupling paths.

[0103] The switching control module 1330 is used to control the opening and closing timing of the at least one first switch and the second switch when switching the second switch to connect with the corresponding coupling path, so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, thereby reducing the noise caused by the switching.

[0104] In this embodiment of the disclosure, the switching control module 1330 is specifically used to: control the simultaneous on-time of the at least one first switch and the second switch to be greater than a first duration threshold, so that the coupling signal of the corresponding transmission path can be transmitted to the first feedback receiving end of the radio frequency transceiver.

[0105] In this embodiment of the disclosure, the switching control module 1330 is specifically used to: control the opening time of at least one first switch and the second switch to meet the first time interval, and / or control the closing time of at least one first switch and the second switch to meet the second time interval, so that the superimposed waveform meets the waveform condition.

[0106] In this embodiment of the disclosure, the waveform conditions include a first waveform condition, a second waveform condition, and a third waveform condition. The first waveform condition includes the rising edge of the superimposed waveform exhibiting a first step characteristic and the falling edge exhibiting a first straight line characteristic. The second waveform condition includes the rising edge of the superimposed waveform exhibiting a second straight line characteristic and the falling edge exhibiting a second step characteristic. The third waveform condition includes the rising edge of the superimposed waveform exhibiting a third step characteristic and the falling edge exhibiting a fourth step characteristic.

[0107] In this embodiment of the disclosure, the at least one switch includes two first switches. The switching control module 1330 is specifically used to: sequentially control the first first switch to open, the second first switch to open, the second switch to open, the second switch to close, the second first switch to close, and the first switch to close, so that the rising and falling edges of the superimposed waveform have multiple step time periods to satisfy the waveform conditions.

[0108] According to embodiments of this disclosure, this disclosure also provides an electronic device and a readable storage medium.

[0109] Figure 14 A schematic block diagram of an example electronic device 1400 that can be used to implement embodiments of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present disclosure described and / or claimed herein.

[0110] like Figure 14 As shown, device 1400 includes a computing unit 1401, which can perform various appropriate actions and processes according to a computer program stored in read-only memory (ROM) 1402 or a computer program loaded from storage unit 1408 into random access memory (RAM) 1403. The RAM 1403 may also store various programs and data required for the operation of device 1400. The computing unit 1401, ROM 1402, and RAM 1403 are interconnected via bus 1404. Input / output (I / O) interface 1405 is also connected to bus 1404.

[0111] Multiple components in device 1400 are connected to I / O interface 1405, including: input unit 1406, such as a keyboard, mouse, etc.; output unit 1407, such as various types of displays, speakers, etc.; storage unit 1408, such as a disk, optical disk, etc.; and communication unit 1409, such as a network card, modem, wireless transceiver, etc. Communication unit 1409 allows device 1400 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0112] The computing unit 1401 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the computing unit 1401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 1401 performs the various methods and processes described above, such as control methods. For example, in some embodiments, the control method may be implemented as a computer software program tangibly contained in a machine-readable medium, such as storage unit 1408. In some embodiments, part or all of the computer program may be loaded and / or installed on device 1400 via ROM 1402 and / or communication unit 1409. When the computer program is loaded into RAM 1403 and executed by the computing unit 1401, one or more steps of the control methods described above may be performed. Alternatively, in other embodiments, the computing unit 1401 may be configured to perform control methods by any other suitable means (e.g., by means of firmware).

[0113] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), system-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transferring data and instructions to the storage system, the at least one input device, and the at least one output device.

[0114] The program code used to implement the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0115] In the context of this disclosure, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0116] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0117] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with embodiments of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0118] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact via communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other. Servers can be cloud servers, servers in distributed systems, or servers incorporating blockchain technology.

[0119] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0120] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0121] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A control circuit, comprising: Radio frequency transceivers output radio frequency signals in different frequency bands through multiple signal transmission paths; Multiple couplers are respectively set for the signal transmission path, and are used to obtain the coupling signal of the corresponding transmission path and transmit it to the first feedback receiving end of the radio frequency transceiver through the coupling path; The second switch has one end connected to the first feedback receiver of the RF transceiver, and the other end can switch to connect to multiple coupling paths. At least one first switch is disposed in at least one coupling path and connected in series with the second switch; The controller is used to control the opening and closing sequence of the at least one first switch and the second switch when switching the second switch to be connected to the corresponding coupling path, so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, thereby reducing the noise caused by the switching.

2. The circuit according to claim 1, wherein, The controller is also used for: The simultaneous on-time of at least one first switch and the second switch is controlled to be greater than a first duration threshold, so that the coupling signal of the corresponding transmission path can be transmitted to the first feedback receiving end of the radio frequency transceiver.

3. The circuit according to claim 2, wherein, Controlling the opening and closing timing of the at least one first switch and the second switch such that the superimposed waveform of the at least one first switch and the second switch satisfies a waveform condition, including the controller being used to: The opening time of at least one first switch and the second switch is controlled to satisfy a first time interval, and / or the closing time of at least one first switch and the second switch is controlled to satisfy a second time interval, so that the superimposed waveform satisfies the waveform condition.

4. The circuit according to claim 3, wherein the waveform conditions include a first waveform condition, a second waveform condition, and a third waveform condition. in, The first waveform condition includes the superimposed waveform having a first step characteristic on its rising edge and a first straight line characteristic on its falling edge; The second waveform condition includes the superimposed waveform having a second straight-line characteristic on the rising edge and a second step characteristic on the falling edge; The third waveform condition includes the superimposed waveform having a third-step characteristic on its rising edge and a fourth-step characteristic on its falling edge.

5. The circuit according to claim 2, wherein, The at least one first switch includes two first switches, and controlling the opening and closing timing of the at least one first switch and the second switch such that the superimposed waveform of the at least one first switch and the second switch satisfies a waveform condition includes: The first switch of the two first switches is controlled sequentially to open, the second switch is opened, the second switch is opened, the second switch is closed, the second switch is closed, and the first switch is closed, so that the rising and falling edges of the superimposed waveform have multiple step time periods to satisfy the waveform conditions.

6. A control method based on a control circuit, the method comprising: Control the radio frequency transceiver to output radio frequency signals of different frequency bands on different signal transmission paths; The coupling signal of the corresponding transmission path is obtained through the coupler on the corresponding signal transmission path and transmitted to the first feedback receiving end of the radio frequency transceiver through the corresponding coupling path. In this embodiment, at least one first switch is provided in at least one coupling path, which can be connected in series with a second switch. One end of the second switch is connected to the first feedback receiving end of the radio frequency transceiver, and the other end can be switched to be connected to multiple coupling paths. When switching the second switch to connect with the corresponding coupling path, the opening and closing timing of the at least one first switch and the second switch is controlled so that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, thereby reducing the noise caused by the switching.

7. The method according to claim 6, wherein, The control of the opening and closing timing of the at least one first switch and the second switch includes: The simultaneous on-time of at least one first switch and the second switch is controlled to be greater than a first duration threshold, so that the coupling signal of the corresponding transmission path can be transmitted to the first feedback receiving end of the radio frequency transceiver.

8. The method according to claim 7, wherein, The control of the opening and closing timing of the at least one first switch and the second switch, such that the superimposed waveform of the at least one first switch and the second switch satisfies the waveform condition, includes: The opening time of at least one first switch and the second switch is controlled to satisfy a first time interval, and / or the closing time of at least one first switch and the second switch is controlled to satisfy a second time interval, so that the superimposed waveform satisfies the waveform condition.

9. The method according to claim 8, wherein, The waveform conditions include a first waveform condition, a second waveform condition, and a third waveform condition. The first waveform condition includes the rising edge of the superimposed waveform exhibiting a first step characteristic and the falling edge exhibiting a first straight line characteristic. The second waveform condition includes the superimposed waveform having a second straight-line characteristic on the rising edge and a second step characteristic on the falling edge; The third waveform condition includes the superimposed waveform having a third-step characteristic on its rising edge and a fourth-step characteristic on its falling edge.

10. The method according to claim 7, wherein, The at least one first switch includes two first switches, and controlling the opening and closing timing of the at least one first switch and the second switch such that the superimposed waveform of the at least one first switch and the second switch satisfies a waveform condition includes: The first switch of the two first switches is controlled sequentially to open, the second switch is opened, the second switch is opened, the second switch is closed, the second switch is closed, and the first switch is closed, so that the rising and falling edges of the superimposed waveform have multiple step time periods to satisfy the waveform conditions.

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