Communication device and method of operation of a communication device

Abstract

Embodiments of the present application provide a communication device and a working method of the communication device to solve the problem of power waste caused by active signal receiving of a receiver in the prior art. The communication device comprises communication circuitry, which comprises an antenna, an impedance matching network, a control circuit, a receiver, a protocol processor, and a signal processing circuit. The antenna is connected with an input end of the impedance matching network, output ends of the impedance matching network are connected with the control circuit and the signal processing circuit respectively, an output end of the signal processing circuit and an output end of the control circuit are connected with the receiver respectively, and the receiver is connected with the protocol processor. The antenna sends the received radio frequency signal to the control circuit and the signal processing circuit through the impedance matching network. When the control circuit outputs a high level according to the radio frequency signal, the receiver is powered and receives the radio frequency signal sent by the signal processing circuit to send to the protocol processor, so that the protocol processor performs protocol processing on the radio frequency signal.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a communication device and a method for operating the communication device. Background Technology

[0002] Currently, in satellite communication equipment, the RF receiving channel is always open to establish communication with the payload / base station. Even if the terminal processor is not processing samples from the receiving channel, the RF channel remains functionally active, resulting in additional power consumption waste. Furthermore, current receivers employ a common RF front-end + transceiver architecture, which requires high-power components and modules such as phase-locked loops, mixers, and local oscillators. These complex structures and high power consumption prevent battery-powered terminals from meeting requirements such as long standby times. Based on these factors, battery-powered terminals often rely on active reception to save RF front-end power, but cannot passively receive RF signals. Summary of the Invention

[0003] This application provides a communication device and a method for operating the communication device to solve the problem of power wastage caused by the receiver actively receiving signals in the prior art.

[0004] In a first aspect, embodiments of this application provide a communication device, including a communication circuit system. The communication circuit system includes an antenna, an impedance matching network, a control circuit, a receiver, a protocol processor, and a signal processing circuit. The antenna is connected to the input terminal of the impedance matching network, the output terminal of the impedance matching network is connected to the control circuit and the signal processing circuit, the output terminal of the signal processing circuit is connected to the receiver, the output terminal of the control circuit is connected to the receiver, and the receiver is connected to the protocol processor.

[0005] The antenna transmits the received radio frequency signal to the control circuit and the signal processing circuit through the impedance matching network. When the control circuit outputs a high level according to the radio frequency signal, it provides a power supply voltage to the receiver so that the receiver receives the radio frequency signal transmitted by the signal processing circuit and sends it to the protocol processor, so that the protocol processor performs protocol processing on the radio frequency signal.

[0006] In one possible implementation, the antenna is used to receive radio frequency signals and transmit the radio frequency signals to the impedance matching network;

[0007] The impedance matching network is used to split the radio frequency signal into two identical radio frequency signals, and send the radio frequency signals to the control circuit and the signal processing circuit respectively.

[0008] The control circuit is used to process the radio frequency signal to obtain the TTL level, and to provide a power supply voltage to the receiver when the TTL level is high.

[0009] The signal processing circuit is used to process the radio frequency signal and send the processed radio frequency signal to the receiver;

[0010] The receiver is configured to receive the processed radio frequency signal sent by the signal processing circuit and send the processed radio frequency signal to the protocol processor when the control circuit provides the power supply voltage to the receiver.

[0011] The protocol processor is used to perform protocol processing on the received processed radio frequency signal.

[0012] In one possible implementation, the control circuit is further configured to send the TTL level to the protocol processor;

[0013] Before performing protocol processing on the received processed radio frequency signal, the protocol processor is also used to receive the TTL level sent by the control circuit as high level.

[0014] In one possible implementation, the control circuit includes a preprocessing sub-circuit, a trigger, an analog switch, and a power supply.

[0015] The input terminal of the preprocessing sub-circuit is connected to the output terminal of the impedance matching network, and the output terminal of the preprocessing is connected to the first input terminal of the trigger. The preprocessing sub-circuit is used to perform detection and amplification processing on the received radio frequency signal.

[0016] The output terminal of the trigger is connected to the control terminal of the analog switch;

[0017] One end of the analog switch is connected to the output terminal of the power supply, and the other end of the analog switch is connected to the power supply terminal of the receiver.

[0018] In one possible implementation, the preprocessing subcircuit includes a detector and an amplifier;

[0019] The input terminal of the detector serves as the input terminal of the preprocessing sub-circuit, and the output terminal of the detector is connected to the input terminal of the amplifier.

[0020] The output terminal of the amplifier serves as the output terminal of the preprocessing sub-circuit.

[0021] In one possible implementation, the signal processing circuit includes a low-noise amplifier, a bandpass filter, and an adjustable attenuator;

[0022] The input terminal of the low-noise amplifier serves as the input terminal of the signal processing circuit, and the output terminal of the low-noise amplifier is connected to the input terminal of the bandpass filter.

[0023] The output of the bandpass filter is connected to the input of the adjustable attenuator, and the output of the adjustable attenuator serves as the output of the signal processing circuit.

[0024] In one possible implementation, the amplifier is a dual-channel limiting amplifier, and the first output terminal of the dual-channel limiting amplifier serves as the output terminal of the preprocessing sub-circuit.

[0025] The control circuit also includes a voltage conditioning module;

[0026] The second output terminal of the dual-channel limiting amplifier is connected to the input terminal of the voltage conditioning module, and the output terminal of the voltage conditioning module is connected to the control terminal of the adjustable attenuator.

[0027] The voltage conditioning module is used to condition the output signal of the dual-channel limiting amplifier to the amplitude range of the control signal of the adjustable attenuator.

[0028] In one possible implementation, the output of the protocol processor is connected to the second input of the trigger;

[0029] After the protocol processing flow is completed, the protocol processor is also used to send a reset signal to the trigger so that the TTL level output by the trigger is low.

[0030] The analog switch is also used to control the power supply to stop providing power voltage to the receiver when the received TTL level is low.

[0031] Secondly, embodiments of this application provide a method for operating a communication device, applied to a terminal device as described in the first aspect and different implementations of the first aspect, the method comprising:

[0032] It receives radio frequency signals and sends the radio frequency signals to the control circuit and the signal processing circuit respectively;

[0033] The radio frequency signal is processed by a control circuit to obtain a TTL level, and the radio frequency signal is processed by a signal processing circuit to obtain a processed radio frequency signal.

[0034] When the TTL level is determined to be high, the power supply is controlled to supply power to the receiver, so that the receiver sends the processed radio frequency signal received from the signal processing circuit to the protocol processor, and controls the protocol processor to perform protocol processing on the received processed radio frequency signal.

[0035] In one possible implementation, after the protocol processing flow is completed, the protocol processor is controlled to send a reset signal to stop the power supply from providing power to the receiver.

[0036] In one possible implementation, the method further includes: when the protocol processing is completed, controlling the protocol processor to send a reset signal to the control circuit so that the TTL level output by the control circuit is low; when the TTL level output by the control circuit is determined to be low, controlling the power supply to stop supplying power to the receiver.

[0037] Thirdly, embodiments of this application provide an execution device, including a memory and a processor;

[0038] Memory, used to store program instructions;

[0039] A processor is configured to acquire program instructions from the memory and execute any step of the method of operating the communication device described in the second aspect and in different implementations, based on the acquired program instructions.

[0040] Fourthly, embodiments of this application provide a computer-readable storage medium, which includes computer instructions that, when executed by a computer, implement the steps of the working method of the communication device provided in embodiments of this application.

[0041] The beneficial effects of this application are as follows:

[0042] In this application, the received radio frequency (RF) signal is split into two paths by the communication circuit system. One path is sent to the original receiving channel, and the other path is used for processing to determine the corresponding TTL level. Based on the TTL level, the power supply of the receiver is then determined. In this application, the receiver power supply is only turned on when the communication device receives an RF signal; when no RF signal is received, the receiver power supply is turned off, resulting in lower power consumption and a relatively longer battery life for battery-powered communication devices. The front-end AGC does not use ADC / DAC and digital feedback; instead, it directly uses the output of the voltage conditioning module for feedback, reducing the pressure on the subsequent AGC algorithm. This receiver channel wake-up method can reduce the amount of data continuously captured and buffered by the subsequent physical layer algorithm.

[0043] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 A hardware structure diagram of a communication device provided in an embodiment of this application;

[0046] Figure 2 This is a schematic flowchart illustrating the operation method of a communication device provided in an embodiment of this application;

[0047] Figure 3 A data processing flowchart for a control circuit provided in an embodiment of this application;

[0048] Figure 4 This is a structural diagram of an execution device provided in an embodiment of this application. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0051] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] Currently, in satellite communication terminal products and some terrestrial network communication terminal products, such as mobile communication terminals and IoT terminals, the RF receiving channel is always open in order to establish communication with the payload / base station. Even if the terminal processor does not process samples from the receiving channel, the RF channel remains functionally active, resulting in additional power consumption waste. However, current communication terminal receivers use a common RF front-end + transceiver architecture, which requires high-power components and modules, such as phase-locked loops, mixers, and local oscillators. When the RF channel remains open for extended periods, these high-power components and modules make it impossible for battery-powered terminals to maintain long standby times. To save power in the RF front-end, these battery-powered terminals primarily rely on active reception, but they cannot passively receive signals.

[0053] Furthermore, in the field of measurement instruments, to test the radio frequency performance and protocol compliance of wireless terminals, a comprehensive test instrument (CTSI) interacts with the terminal under test (DUT) according to the standard protocol used by the DUT, guiding the terminal into multiple states or modes to achieve the purpose of testing the terminal. This requires the CTSI's receiving channel to not only operate continuously but also to continuously acquire data until the signal returned by the terminal is captured. However, this method results in an excessively large buffer data volume collected by the receiving channel, making the acquisition algorithm more complex and increasing hardware overhead such as network port speed and hard drive read / write speed. In addition, this method also leads to increased power consumption, significantly impacting the standby time of portable measurement instruments.

[0054] To address the aforementioned problems, this application provides a communication device comprising an antenna, an impedance matching network, a control circuit, a receiver, a protocol processor, and a signal processing circuit. In this application, received radio frequency (RF) signals are transmitted to both the control circuit and the signal processing circuit. The control circuit processes the RF signals to obtain a TTL level, and the signal processing circuit further processes the RF signals to obtain a processed RF signal. Further, when the TTL level is determined to be high, the power supply is controlled to power the receiver, enabling the receiver to transmit the processed RF signal received from the signal processing circuit to the protocol processor, and controlling the protocol processor to perform protocol processing on the received processed RF signal. This method achieves low-power wake-up performance for the RF receiving channel, activating the receiver within a short time after receiving the RF signal, thereby reducing system power consumption and the processing load on subsequent algorithms.

[0055] See Figure 1 As shown, Figure 1An exemplary hardware architecture of a communication device provided in an embodiment of this application is illustrated. The communication device includes an antenna 10, an impedance matching network 20, a control circuit 30, a receiver 40, a protocol processor 50, and a signal processing circuit 60.

[0056] The antenna 10 is connected to the input of the impedance matching network 20, the output of the impedance matching network 20 is connected to the control circuit 30 and the signal processing circuit 60 respectively, the output of the signal processing circuit 60 is connected to the receiver 40, the output of the control circuit 30 is connected to the receiver 40, and the receiver 40 is connected to the protocol processor 50.

[0057] In this application, the antenna 10 transmits the received radio frequency signal to the control circuit 30 and the signal processing circuit 60 through the impedance matching network 20. When the control circuit 30 outputs a high level according to the radio frequency signal, it provides a power supply voltage to the receiver 40 so that the receiver 40 receives the radio frequency signal transmitted by the signal processing circuit 60 and sends it to the protocol processor 50, so that the protocol processor 50 performs protocol processing on the radio frequency signal.

[0058] In some embodiments, antenna 10 is used to receive radio frequency signals and transmit radio frequency signals to an impedance matching network;

[0059] Impedance matching network 20 is used to send radio frequency signals to the control circuit and the signal processing circuit, respectively.

[0060] The control circuit 30 is used to process the radio frequency signal to obtain the TTL level, and to provide the power supply voltage to the receiver 40 when the TTL level is high.

[0061] The signal processing circuit 60 is used to process the radio frequency signal and send the processed radio frequency signal to the receiver 40.

[0062] Receiver 40 is used to receive the processed radio frequency signal sent by signal processing circuit 60 and send the processed radio frequency signal to protocol processor 50 when the control circuit 30 provides a power supply voltage to receiver 40.

[0063] Protocol processor 50 is used to perform protocol processing on the received processed radio frequency signals.

[0064] In some embodiments, the impedance matching network 20 can be implemented using a power divider. The impedance matching network 20 can split the radio frequency signal received by the antenna 10 into two signals, which are then input to the control circuit 30 and the signal processing circuit 60, respectively.

[0065] In some embodiments, the control circuit 30 is also configured to send a TTL level to the protocol processor 50. Before performing protocol processing on the received processed radio frequency signal, the protocol processor 50 is also configured to receive a high TTL level from the control circuit 30.

[0066] In some embodiments, the control circuit 30 includes a preprocessing sub-circuit 31, a trigger 32, and an RF power supply unit 300. The RF power supply unit 300 includes an analog switch 33 and a power supply 34. The input terminal of the preprocessing sub-circuit 31 is connected to the output terminal of the impedance matching network 20, and the output terminal of the preprocessing sub-circuit 31 is connected to the first input terminal of the trigger 32. The preprocessing sub-circuit 31 is used to perform detection and amplification processing on the received RF signal. In some embodiments, the output terminal of the trigger 32 is connected to the control terminal of the analog switch 33, one end of the analog switch 33 is connected to the output terminal of the power supply 34, and the other end of the analog switch 33 is connected to the power supply terminal of the receiver 40.

[0067] In some embodiments, the preprocessing subcircuit 31 includes a detector 311 and an amplifier 312. The input terminal of the detector 311 serves as the input terminal of the preprocessing subcircuit 31, and the output terminal of the detector 311 is connected to the input terminal of the amplifier 312; the output terminal of the amplifier 312 serves as the output terminal of the preprocessing subcircuit 31.

[0068] In some embodiments, the signal processing circuit 60 includes a low-noise amplifier 61, a bandpass filter 62, and an adjustable attenuator 63;

[0069] The input terminal of the low-noise amplifier 61 serves as the input terminal of the signal processing circuit 60, and the output terminal of the low-noise amplifier 61 is connected to the input terminal of the bandpass filter 62.

[0070] The output of the bandpass filter 62 is connected to the input of the adjustable attenuator 63, and the output of the adjustable attenuator 63 serves as the output of the signal processing circuit 60.

[0071] In some embodiments, amplifier 312 is a dual-channel limiting amplifier, and the first output of the dual-channel limiting amplifier serves as the output of the preprocessing sub-circuit 30.

[0072] In some embodiments, the control circuit 30 further includes a voltage conditioning module 35. The second output of the dual-channel limiting amplifier is connected to the input of the voltage conditioning module 35, and the output of the voltage conditioning module 35 is connected to the control terminal of the adjustable attenuator 63.

[0073] In some embodiments, the voltage conditioning module 35 is used to condition the output signal of the amplifier 312 to the amplitude range of the control signal of the adjustable attenuator 63. For example, if the output voltage of the amplifier 312 is 2V and the amplitude range of the control signal of the adjustable attenuator 63 is 4-6V, then the voltage output of the amplifier 312 can be conditioned to 4-6V, and then the conditioned voltage signal can be input to the control terminal of the adjustable attenuator 63.

[0074] In some embodiments, the voltage conditioning module 35 can be implemented in various ways, such as a reference and voltage divider module. This application does not specifically limit the specific structure of the voltage conditioning module 35.

[0075] In some embodiments, the output of the protocol processor 50 is connected to the second input of the flip-flop 32. After the protocol processing flow is completed, the protocol processor 50 is also used to send a reset signal to the flip-flop 32 to make the TTL level output by the flip-flop 32 low.

[0076] The analog switch 33 is also used to control the power supply 34 to stop providing power supply voltage to the receiver 40 when the received TTL level is low.

[0077] In some embodiments, a bandpass filter 70 is further included between the antenna 10 and the impedance matching network 20. The bandpass filter 70 is used to limit the transmission of radio frequency signals received by the antenna 10 to the impedance matching network 20 within a set frequency band corresponding to the receiver 40.

[0078] In some scenarios, the bandpass filter 70 can be implemented using a cavity filter.

[0079] See Figure 2 As shown, Figure 2 An exemplary embodiment of the present application illustrates a method for operating a communication device, which can be achieved through... Figure 1 The communication device shown performs the operation. The specific process is as follows:

[0080] 201 receives radio frequency signals and sends radio frequency signals to the control circuit and signal processing circuit respectively.

[0081] In some embodiments, the receiver front-end circuitry can limit the received frequency band of the radio frequency signal to a specified frequency band using a cavity bandpass filter. The specified frequency band is the frequency band that the receiver can receive or process.

[0082] Furthermore, an impedance matching network can be used to split the RF signal into two paths: one sent to the control circuit and the other to the signal processing circuit. The signal processing circuit can be understood as the original receiving channel. After the RF signal is input into the original receiving channel, it can undergo receiver front-end processing and AGC gain control.

[0083] 202, the radio frequency signal is processed by the control circuit to obtain the TTL level, and the radio frequency signal is processed by the signal processing circuit to obtain the processed radio frequency signal.

[0084] In some embodiments, when the signal processing circuit receives the radio frequency signal sent by the impedance matching network, it can amplify it through a low-noise amplifier, and then filter it twice through a bandpass filter (such as a surface acoustic wave (SAW) filter) before inputting it into an adjustable attenuator.

[0085] In some scenarios, the adjustable attenuator adjusts the voltage parameters of the input RF signal to obtain the processed RF signal, and then sends the processed RF signal to the receiver.

[0086] In some embodiments, after the control circuit receives the radio frequency (RF) signal transmitted by the impedance matching network, it can perform power detection and amplification of the RF signal through a processing sub-circuit. Specifically, the RF signal can be power detected by a phase-shift keying (PSK) signal using an RMS detector, and then the detected signal can be amplified by an amplifier. Further, it can be transmitted to a trigger to output a standard TTL level.

[0087] 203. When the TTL level is determined to be high, the power supply is controlled to supply power to the receiver so that the receiver sends the processed radio frequency signal sent by the received signal processing circuit to the protocol processor, and controls the protocol processor to perform protocol processing on the received processed radio frequency signal.

[0088] In some embodiments, the output of the dual-channel matched amplifier is a voltage signal. When the voltage value is greater than the input threshold of a set trigger, the trigger outputs a TTL high level. The TTL level output by the trigger is only set high after being triggered by the rising edge, and then remains high; it is not actively reset to zero.

[0089] In some embodiments, the trigger sends TTL levels to both the analog switch and the protocol processor.

[0090] In some scenarios, when the TTL level of the trigger output is determined to be high, the analog switch can open the power supply rail at a speed on the order of nanoseconds, thereby enabling the receiver to supply power and power the relevant period. The receiver then sends the signal received from the adjustable attenuator to the protocol processor.

[0091] In some scenarios, the protocol processor can be woken up when the TTL level output of the trigger is determined to be high. That is, after receiving the high level, the protocol processor receives the processed RF signal sent by the receiver and performs protocol processing on the processed RF signal.

[0092] In some embodiments, after the coprocessor determines that the receiving process and data processing are complete, it can send a reset signal to the flip-flop through the I / O port, thereby causing the TTL level output by the flip-flop to go low.

[0093] In some embodiments, after the protocol processing is completed, the control protocol processor sends a reset signal to the control circuit to make the TTL level output by the control circuit low. Further, when the TTL level output by the control circuit is determined to be low, the control power supply stops supplying power to the receiver, thereby powering off the receiver.

[0094] The above solution enables the receiver power supply to be turned on only when the communication device receives a radio frequency signal, and to be turned off when no radio frequency signal is received, thereby saving power consumption and resulting in lower power consumption and relatively longer battery life for battery-powered communication devices.

[0095] In some embodiments, the detector can perform pre-amplifier gain control of the RF front-end AGC while simultaneously monitoring the signal input. Specifically, the voltage conditioning module can be fed into another output path of the amplifier. The voltage conditioning module works in conjunction with the adjustable attenuator to compare the voltage with a pre-set reference voltage, thereby continuously adjusting the attenuation value of the adjustable attenuator.

[0096] In this embodiment, the front-end AGC does not employ ADC / DAC and digital feedback; instead, it directly uses the output of the voltage conditioning module for feedback, reducing the load on the subsequent AGC algorithm. This receive channel wake-up method can reduce the amount of data continuously captured and buffered by the subsequent physical layer algorithm.

[0097] In some embodiments, when the radio frequency signal is input to the control circuit, it is first detected by a detector. When the detector detects a small signal and amplifies the output DC, it sends one signal to the trigger to generate a TTL level, and another signal to the voltage conditioning module to feed back to the adjustable attenuator.

[0098] In some scenarios, when the TTL level is high (1), the receiver power is on and operational. The protocol processor receives the received signal and processes the data according to the protocol, i.e., executing the signal reception process in the protocol (such as synchronization, acquisition, establishing a random access request, etc.). Then, after the protocol processor completes processing, it sends a reset instruction to the trigger, which then cuts off the power to the RF front-end circuit, awaiting the arrival of the next detector power detection signal.

[0099] In some scenarios, when the TTL level is low (0), the receiver is in standby mode, such as... Figure 3 As shown.

[0100] Based on the same technical concept, see [link / reference] Figure 4 As shown, this application embodiment provides an execution device 400, which can execute any step of the operation method of the communication device described above. To avoid repetition, further details are omitted here. Device 400 includes a memory 401 and a processor 402.

[0101] The memory 401 is used to store program instructions;

[0102] The processor 402 is used to call the program instructions stored in the memory and execute each step of the working method of the communication device according to the obtained program.

[0103] In the embodiments of this application, the processor 402 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, capable of implementing or executing the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules in the processor.

[0104] Memory 401, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. Memory 401 may include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (RAM), static random access memory (SRAM), programmable read-only memory (PROM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), magnetic memory, magnetic disk, optical disk, etc. Memory 401 can be any other medium capable of carrying or storing desired program code in the form of instructions or data structures that can be accessed by a computer, but is not limited thereto. In the embodiments of this application, memory 401 can also be a circuit or any other device capable of implementing storage functions for storing program instructions and / or data.

[0105] Based on the same technical concept, embodiments of this application provide a computer-readable storage medium storing computer instructions that, when executed on a computer, cause the computer to perform various steps of the working method of the aforementioned communication device.

[0106] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0107] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0108] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0109] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0110] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A communication device, characterized in that, It includes a communication circuit system, which includes an antenna, an impedance matching network, a control circuit, a receiver, a protocol processor, and a signal processing circuit. The signal processing circuit includes a low-noise amplifier, a bandpass filter, and an adjustable attenuator. The output of the low-noise amplifier is connected to the input of the bandpass filter, and the output of the bandpass filter is connected to the input of the adjustable attenuator. The control circuit includes a preprocessing sub-circuit, a trigger, an analog switch, and a power supply. The preprocessing sub-circuit is used to perform detection and amplification processing on the received radio frequency signal. The output terminal of the preprocessing sub-circuit is connected to the first input terminal of the trigger, and the output terminal of the trigger is connected to the control terminal of the analog switch. One end of the analog switch is connected to the output terminal of the power supply, and the other end of the analog switch is connected to the power supply terminal of the receiver. The control circuit further includes a voltage conditioning module; the input terminal of the voltage conditioning module is connected to the output terminal of the preprocessing sub-circuit, and the output terminal of the voltage conditioning module is connected to the control terminal of the adjustable attenuator; the voltage conditioning module is used to condition the output signal of the preprocessing sub-circuit to the amplitude range of the control signal of the adjustable attenuator. The antenna is connected to the input of the impedance matching network. The output of the impedance matching network is connected to the input of the preprocessing sub-circuit in the control circuit and the input of the low-noise amplifier in the signal processing circuit. The output of the adjustable attenuator in the signal processing circuit is connected to the receiver. The output of the control circuit is connected to the receiver. The receiver is connected to the protocol processor. The antenna transmits the received radio frequency signal to the control circuit and the signal processing circuit through the impedance matching network. When the trigger in the control circuit outputs a high level according to the radio frequency signal, it provides a power supply voltage to the receiver. The receiver receives the radio frequency signal transmitted by the signal processing circuit and sends it to the protocol processor, so that the protocol processor performs protocol processing on the radio frequency signal. The output terminal of the protocol processor is connected to the second input terminal of the flip-flop; after the protocol processing is completed, the protocol processor is also used to send a reset signal to the flip-flop to make the TTL level output by the flip-flop low, thereby stopping the supply of power voltage to the receiver.

2. The communication device as described in claim 1, characterized in that, The antenna is used to receive radio frequency signals and transmit the radio frequency signals to the impedance matching network; The impedance matching network is used to split the radio frequency signal into two identical radio frequency signals, and send the radio frequency signals to the control circuit and the signal processing circuit respectively. The control circuit is used to process the radio frequency signal to obtain the TTL level, and to provide a power supply voltage to the receiver when the TTL level is high. The signal processing circuit is used to process the radio frequency signal and send the processed radio frequency signal to the receiver; The receiver is configured to receive the processed radio frequency signal sent by the signal processing circuit and send the processed radio frequency signal to the protocol processor when the control circuit provides the power supply voltage to the receiver. The protocol processor is used to perform protocol processing on the received processed radio frequency signal.

3. The communication device as described in claim 1, characterized in that, The control circuit is also used to send the TTL level to the protocol processor; Before performing protocol processing on the received processed radio frequency signal, the protocol processor is also used to receive the TTL level sent by the control circuit as high level.

4. The communication device as described in claim 1, characterized in that, The preprocessing sub-circuit includes a detector and an amplifier; The input terminal of the detector serves as the input terminal of the preprocessing sub-circuit, and the output terminal of the detector is connected to the input terminal of the amplifier. The output terminal of the amplifier serves as the output terminal of the preprocessing sub-circuit.

5. The communication device as described in claim 4, characterized in that, The amplifier is a dual-channel limiting amplifier, and the first output terminal of the dual-channel limiting amplifier is used as the output terminal of the preprocessing sub-circuit. The second output terminal of the dual-channel limiting amplifier is connected to the input terminal of the voltage conditioning module.

6. The communication device according to any one of claims 1-5, characterized in that, The analog switch is also used to control the power supply to stop providing power voltage to the receiver when the received TTL level is low.

7. A method for operating a communication device, characterized in that, Applied to the communication device as described in any one of claims 1 to 6, the method includes: It receives radio frequency signals and sends the radio frequency signals to the control circuit and the signal processing circuit respectively; The radio frequency signal is processed by a control circuit to obtain a TTL level, and the radio frequency signal is processed by a signal processing circuit to obtain a processed radio frequency signal. When the TTL level is determined to be high, the power supply is controlled to supply power to the receiver, so that the receiver sends the processed radio frequency signal sent by the signal processing circuit to the protocol processor, and controls the protocol processor to perform protocol processing on the received processed radio frequency signal. Once the protocol processing is complete, the protocol processor sends a reset signal to the control circuit to make the TTL level output by the control circuit low.

8. The method as described in claim 7, characterized in that, The method further includes: When the TTL level output by the control circuit is determined to be low, the control power supply stops supplying power to the receiver.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by the computer, perform the method as described in claim 7 or 8.

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