CN116347673A - Communication base station, terminal, system, resonance signal filtering method and device - Google Patents

Abstract

The disclosure relates to a communication base station, a terminal, a system, a method and a device for filtering resonance signals, wherein the communication base station comprises: a base station baseband processing component and a spectrum analysis component; the spectrum analysis component is connected with the base station baseband processing component; the frequency spectrum analysis component is used for acquiring radio frequency signals, judging whether resonance signals in the radio frequency signals exceed standards or not, and transmitting a judging result to the base station baseband processing component; the base station baseband processing component is used for acquiring a judging result and generating an adjusting instruction after determining that the judging result is that the resonance signal exceeds the standard; the adjustment instruction is used for being transmitted to a preset communication terminal and used for instructing the communication terminal to filter out the resonance signal. Through the scheme, the resonant signal in the radio frequency signal is effectively filtered, and the quality of the radio frequency signal is improved.

Description

Communication base station, terminal, system, resonance signal filtering method and device

technical field

The present disclosure relates to the field of communication technologies, and in particular to a communication base station, a terminal, a system, a resonance signal filtering method and device.

Background technique

With the continuous upgrading and development of communication technology, the communication system is becoming more and more complicated. People use the communication system to carry out activities such as calling, video, and surfing the Internet. Wave interference, etc., among which harmonic interference is a common interference between communication systems. Harmonic interference is an inevitable non-useful interference information generated by nonlinear design devices inside mobile terminals. When the interference signal strength reaches a certain level, it will seriously interfere with communication quality. Therefore, harmonic suppression design must be considered in the design of communication terminals , so that the harmonic interference signal generated by the communication terminal meets the certification international standard, effectively avoiding harmonic interference between communication terminals or communication systems.

Contents of the invention

In order to solve the above technical problems, the present disclosure provides a communication base station, a terminal, a system, a resonance signal filtering method and device.

In a first aspect, the present disclosure provides a communication base station, where the communication base station includes:

Base station baseband processing components and spectrum analysis components;

The spectrum analysis component is connected to the base station baseband processing component;

The spectrum analysis component is used to obtain a radio frequency signal, judge whether the resonance signal in the radio frequency signal exceeds the standard, and transmit the judgment result to the base station baseband processing component;

The base station baseband processing component is used to obtain the judgment result, and after determining that the judgment result is that the resonance signal exceeds the standard, generate an adjustment instruction;

The adjustment instruction is used for transmission to a preset communication terminal, and for instructing the communication terminal to filter out the resonance signal.

Optionally, the communication base station also includes:

Base station antenna, base station RF front-end components and base station RF transceiver components;

The base station antenna is connected to the base station radio frequency front-end component, the base station radio frequency front-end component is connected to the base station radio frequency transceiver component and the spectrum analysis component, and the base station radio frequency transceiver component is connected to the base station baseband processing component;

The base station antenna is used to receive the radio frequency signal and transmit it to the base station radio frequency front-end component; the base station radio frequency front-end component is used to generate a coupled signal corresponding to the radio frequency signal and transmit it to the spectrum analysis component; the spectrum The analysis component is also used to analyze the coupling signal, judge whether the resonance signal exceeds the standard, and transmit the judgment result to the base station baseband processing component; the base station baseband processing component is also used to determine whether the judgment The result is that after the resonance signal exceeds the standard, the adjustment instruction is transmitted to the radio frequency transceiver component of the base station; The radio frequency front-end component of the base station is further transmitted to the communication terminal through the antenna of the base station.

In a second aspect, the present disclosure also provides a communication terminal, where the communication terminal includes a terminal radio frequency transceiver component and a filtering device;

The terminal radio frequency transceiver component is connected to the filtering device;

The terminal radio frequency transceiver component is used to transmit radio frequency signals to the filtering device; the filtering device is used to filter out resonance signals in the radio frequency signals based on adjustment instructions sent by a preset communication base station.

Optionally, the terminal radio frequency transceiver component includes:

a radio frequency transceiver, a power amplifier, a duplexer, a terminal antenna switch, a first matching network, a second matching network, and a third matching network;

The radio frequency transceiver is connected to the power amplifier, the power amplifier is connected to the first matching network, the first matching network is connected to the duplexer, the duplexer is connected to the second matching network, and Connect the radio frequency transceiver, the second matching network is connected to the terminal antenna switch, the terminal antenna switch is connected to the third matching network, and the third matching network is connected to the filtering device;

The path between the power amplifier, the first matching network and the duplexer forms a transmission link, the path between the duplexer and the radio frequency transceiver forms a reception link, and the transmission chain The road and the receiving link form a transceiving link.

Optionally, the filtering device includes:

a controller and N variable filter networks;

The controller is connected to the variable filter network;

The controller is used to control each of the variable filter networks to be adjusted to different resonance frequencies;

The variable filter network is used to filter out the resonance signal corresponding to the resonance frequency;

Among them, N≥2.

Optionally, each of the transceiver links corresponds to a radio frequency band, and the radio frequency transceiver component of the terminal includes M transceiver links, where N≥M.

Optionally, the communication terminal also includes a host computer and a terminal antenna;

The host computer is connected to the controller, and the terminal antenna is connected to the filtering device;

The upper computer is used to obtain the adjustment instruction sent by the preset communication base station, and generate a control instruction based on the adjustment instruction, and the control instruction is used to instruct the controller to control each of the variable filter networks to adjust to Different resonant frequencies; the terminal antenna is used to send and receive the radio frequency signal with the communication base station.

Optionally, the filtering device includes a signal input terminal and a signal output terminal;

The signal input end is connected to the signal output end, the signal input end is connected to the terminal radio frequency transceiver component, and the signal output end is connected to the terminal antenna;

The N variable filter networks are connected in parallel between the signal input end and the signal output end.

Optionally, the variable filter network includes a switch, a variable capacitor and a variable inductor;

The first terminal of the switch is connected between the signal input terminal and the signal output terminal, the second terminal of the switch is connected to the first terminal of the variable capacitor, and the second terminal of the variable capacitor The first end of the variable inductor is connected, and the second end of the variable inductor is grounded.

In a third aspect, the present disclosure also provides a resonance signal filtering method, the method is implemented based on the communication base station described in any one of the above first aspects, and the method includes:

acquiring the radio frequency signal;

judging whether the resonance signal in the radio frequency signal exceeds the standard, and transmitting the judgment result to the base station baseband processing component, so that the base station baseband processing component generates the adjustment instructions;

Wherein, the adjustment instruction is used for transmission to the communication terminal, and for instructing the communication terminal to filter out the resonance signal.

Optionally, the method also includes:

After the base station baseband processing component determines that the judgment result is that the resonance signal does not exceed the standard, it generates a silent instruction and transmits it to the communication terminal;

Wherein, the silent instruction is used to control the filtering device to maintain a silent state.

Optionally, the method also includes:

Acquiring the filtering identifier transmitted by the communication terminal;

transmitting the quiet instruction to the communication terminal based on the filtering flag;

Wherein, the filtering flag is sent by the communication terminal after adjusting the filtering device based on the adjustment instruction.

In a fourth aspect, the present disclosure also provides a resonance signal filtering method, the method is implemented based on the communication terminal described in any one of the above second aspects, and the method includes:

acquiring the radio frequency signal;

filtering the resonance signal based on the adjustment instruction sent by the communication base station.

In a fifth aspect, the present disclosure also provides a resonance signal filtering device, the device is implemented based on the communication base station described in any one of the above-mentioned first aspects, and the device includes:

a first acquisition module, configured to acquire the radio frequency signal;

The judging module is used to judge whether the resonance signal in the radio frequency signal exceeds the standard; if so, generate the adjustment instruction and transmit it to the communication terminal.

In a sixth aspect, the present disclosure also provides a resonance signal filtering device, the device is implemented based on the communication terminal in the communication system according to any one of the above second aspects, and the device includes:

a second acquiring module, configured to acquire the radio frequency signal;

A filtering module, configured to filter out the resonance signal based on the adjustment instruction sent by the communication base station.

In a seventh aspect, the present disclosure further provides a communication system, where the communication system includes the communication base station described in any one of the above first aspects, or includes the communication terminal described in any one of the above second aspects.

Compared with the prior art, the technical solutions provided by the embodiments of the present disclosure have the following advantages:

The disclosure provides a communication base station, a terminal, a system, a resonance signal filtering method and device, the communication base station includes: a base station baseband processing component and a spectrum analysis component; the spectrum analysis component is connected to the base station baseband processing component; the spectrum analysis component is used to obtain radio frequency signal, judge whether the resonance signal in the radio frequency signal exceeds the standard, and transmit the judgment result to the base station baseband processing component; the base station baseband processing component is used to obtain the judgment result, and after determining that the judgment result is that the resonance signal exceeds the standard, generate an adjustment instruction; adjust The instruction is used for transmission to a preset communication terminal, and for instructing the communication terminal to filter out the resonance signal. That is, through the above scheme, the present disclosure can detect whether the received radio frequency signal contains too many resonance signals at the communication base station, and when there are too many resonance signals (that is, the resonance signal exceeds the standard), an adjustment instruction can be generated to instruct the communication terminal to adjust the radio frequency The signal is filtered, the resonance signal in the radio frequency signal is filtered out, and the quality of the radio frequency signal is improved.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings without paying creative labor.

FIG. 1 is a schematic structural diagram of a communication base station provided by an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of another communication base station provided by an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a first type of communication terminal provided by an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a second communication terminal provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a filtering device provided by an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart of a resonance signal filtering method provided by an embodiment of the present disclosure;

FIG. 7 is a schematic flowchart of another resonance signal filtering method provided by an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a resonance signal filtering device provided by an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another resonance signal filtering device provided by an embodiment of the present disclosure.

Detailed ways

In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

The communication base station, terminal, system, method and device for filtering resonance signals provided by the embodiments of the present disclosure will be exemplarily described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a communication base station provided by an embodiment of the present disclosure. The communication base station includes:

Base station baseband processing component 11 and spectrum analysis component 12; Spectrum analysis component 12 connects base station baseband processing component 11; Spectrum analysis component 12 is used for obtaining radio frequency signal, judges whether the resonant signal in radio frequency signal exceeds standard, and judges the result and transmits to base station baseband The processing component 11; the base station baseband processing component 11 is used to obtain the judgment result, and after determining that the judgment result is that the resonance signal exceeds the standard, an adjustment instruction is generated; the adjustment instruction is used for transmission to a preset communication terminal, and for instructing the communication terminal to filter out resonant signal.

Specifically, base station baseband processing component 11 is a device that can generate adjustment instructions in this embodiment, and it can be a CPU or the like. Spectrum analysis component 12 can perform spectrum analysis on the received radio frequency signal in this embodiment. device, which can be a spectrum analyzer, etc. The communication base station provided in this embodiment can perform spectrum analysis on the radio frequency signal after acquiring the radio frequency signal (the radio frequency signal is sent by the communication terminal), judge whether the resonance signal in the radio frequency signal exceeds the standard, and transmit the judgment result to the baseband processing component of the base station 11. The base station baseband processing component 11 generates an adjustment instruction after determining that the resonance signal exceeds the standard, and the adjustment instruction is used to send to the terminal device (that is, the terminal device corresponding to the above-mentioned radio frequency signal), and the terminal device can adjust the radio frequency based on the adjustment instruction. The signal is filtered to remove the resonance signal. The method for judging whether the resonance signal exceeds the standard may be judging the signal-to-noise ratio of the radio frequency signal, and if the signal-to-noise ratio is greater than a certain signal-to-noise ratio threshold, the judgment result is exceeding the standard. That is, through the above scheme, the present disclosure can detect whether the received radio frequency signal contains too many resonance signals at the communication base station, and when there are too many resonance signals (that is, the resonance signal exceeds the standard), an adjustment instruction can be generated to instruct the communication terminal to adjust the radio frequency The signal is filtered, the resonance signal in the radio frequency signal is filtered out, and the quality of the radio frequency signal is improved.

2 is a schematic structural diagram of another communication base station provided by an embodiment of the present disclosure. In some embodiments, the communication base station also includes: a base station antenna 13, a base station radio frequency front-end component 14 and a base station radio frequency transceiver component 15; the base station antenna 13 is connected to the base station radio frequency The front-end component 14, the base station radio frequency front-end component 14 is connected to the base station radio frequency transceiver component 15 and the spectrum analysis component 12, the base station radio frequency transceiver component 15 is connected to the base station baseband processing component 11; the base station antenna 13 is used to receive radio frequency signals and transmit them to the base station radio frequency front-end component 14; The base station radio frequency front-end component 14 is used to generate the coupled signal corresponding to the radio frequency signal and transmit it to the spectrum analysis component 12; the spectrum analysis component 12 is also used to analyze the coupled signal, judge whether the resonance signal exceeds the standard, and transmit the judgment result to the base station baseband processing Component 11; the base station baseband processing component 11 is also used to transmit adjustment instructions to the base station radio frequency transceiver component 15 after determining that the result of the judgment is that the resonance signal exceeds the standard; the base station radio frequency transceiver component 15 is used to generate a radio frequency signal corresponding to the adjustment command based on the adjustment command, and transmit it to The radio frequency front-end component 14 of the base station is further transmitted to the communication terminal through the base station antenna 13 .

Specifically, the base station antenna 13 represents a terminal for directly transmitting and receiving radio frequency signals. The radio frequency signals are transmitted into the air by the base station antenna 13 and then transmitted to communication terminals. The base station antenna 13 passes through the base station RF front-end component 14 after receiving the radio frequency signal, wherein the coupled signal through the coupler enters the spectrum analysis component 12 for spectrum analysis, and judges the resonance signal of the radio frequency signal (coupling signal) (in some scenarios, it can also be simultaneously Including harmonic interference and intermodulation interference, collectively referred to as spurious interference) whether it exceeds the standard, and the judgment result is transmitted to the base station baseband processing component 11, and the base station baseband processing component 11 makes a corresponding action based on the judgment result, for example, when the judgment result is After exceeding the standard, an adjustment instruction is generated, and after the adjustment instruction is sent to the communication terminal, the communication terminal can filter the radio frequency signal based on the adjustment instruction, and filter out the resonance signal in the radio frequency signal.

3 is a schematic structural diagram of the first communication terminal provided by the embodiment of the present disclosure. The communication terminal includes a terminal radio frequency transceiver component 31 and a filtering device 32; the terminal radio frequency transceiver component 31 is connected to the filtering device 32; 32 transmits a radio frequency signal; the filtering device 32 is configured to filter out a resonance signal in the radio frequency signal based on an adjustment instruction sent by a preset communication base station.

Specifically, the terminal radio frequency transceiving component 31 represents a device for transmitting and receiving radio frequency signals, which can be connected to the signal input end of the filtering device 32. After the terminal radio frequency transceiving component 31 sends out a radio frequency signal, the radio frequency signal first passes through the filtering device 32, and can pass through the filtering device 32. The means 32 filters out the resonance signal.

In order to effectively filter the radio frequency signal, a filtering device 32 can be provided in the communication terminal. The filtering device 32 can be an integral structure, and the filtering device 32 can realize filtering of radio frequency signals in all frequency bands to simplify the circuit.

4 is a schematic diagram of the structure of the second type of communication terminal provided by the embodiment of the present disclosure. The terminal radio frequency transceiver component 31 includes: a radio frequency transceiver 311, a power amplifier 312, a duplexer 313, a terminal antenna switch 314, a first matching network 315, a second Two matching networks 316 and a third matching network 317; the radio frequency transceiver 311 is connected to the power amplifier 312, the power amplifier 312 is connected to the first matching network 315, the first matching network 315 is connected to the duplexer 313, and the duplexer 313 is connected to the second matching network 316, and connect the radio frequency transceiver 311, the second matching network 316 is connected to the terminal antenna switch 314, the terminal antenna switch 314 is connected to the third matching network 317, and the third matching network 317 is connected to the filtering device 32; the power amplifier 312, the first matching network 315 The path between the duplexer 313 and the duplexer 313 forms a transmission link, the path between the duplexer 313 and the radio frequency transceiver 311 forms a reception link, and the transmission link and the reception link form a transceiver link.

Referring to FIG. 4 , specifically, a communication device may include multiple transceiver links for radio frequency signals. The embodiment of the present disclosure takes a transceiver link for radio frequency signals as an example. The radio frequency transceiver 311 represents the device, the power amplifier 312 is used to amplify the power of the radio frequency signal transmitted and received, the duplexer 313 is used to ensure the mutual isolation between the received radio frequency signal and the transmitted radio frequency signal, and the terminal antenna switch 314 is used to adjust the transmission and reception based on different frequency bands The connection relationship of the link, that is, when working in frequency band 1, the terminal antenna switch 314 is adjusted to the line corresponding to frequency band 1; when working in frequency band 2, the terminal antenna switch 314 is adjusted to the line corresponding to frequency band 2; the first matching network 315, the second The second matching network 316 and the third matching network 317 can be collectively referred to as a matching network (or impedance matching network), and its main function is to solve the problem of impedance mismatch when transmitting radio frequency signals. In some scenarios, the first matching network 315, the second matching network The matching network 316 and the third matching network 317 may be the same or different, which is not limited here. In some scenarios, the devices that generate harmonic signals are mainly the power amplifier 312 and the terminal antenna switch 314, wherein the frequency bandwidth of the harmonic signal generated by the terminal antenna switch 314 is relatively wide, and it is impossible to filter out all resonance signals through a single filter network , therefore, the filter device 32 is set between the terminal antenna switch 314 and the antenna 23, that is, it is actually set at the common end of all transceiver links, which can ensure that the filter device 32 can filter out resonance signals in all frequency bands.

5 is a schematic structural diagram of a filter device provided by an embodiment of the present disclosure. In some embodiments, the filter device 32 includes: a controller 321 and N variable filter networks 322; the controller 321 is connected to the variable filter network 322 (not shown The connection relationship is shown in the figure); the controller 321 is used to control each variable filter network 322 to be adjusted to different resonance frequencies respectively; the variable filter network 322 is used to filter out the resonance signal corresponding to the resonance frequency; wherein, N ≥2.

Specifically, the variable filter network 322 represents a filter network that can change its own resonant frequency, and the controller 321 represents a device that can adjust the resonant frequency of the variable filter network 322; continue to refer to FIG. 5, in some embodiments, the filtering device 32 includes a signal input terminal 3201 and a signal output terminal 3202; the signal input terminal 3201 is connected to the signal output terminal 3202, the signal input terminal 3201 is connected to the terminal radio frequency transceiver component 31, and the signal output terminal 3202 is connected to the terminal antenna 34; N variable filter networks 322 It is connected in parallel between the signal input terminal 3201 and the signal output terminal 3202 .

One end of the variable filter network 322 is connected between the signal input terminal 3201 and the signal output terminal 3202, and the other end can be grounded; if the frequency band of the radio frequency signal input to the filter device 32 is frequency band 1 (and only frequency band 1), it can A certain variable filter network 322 is controlled by the controller 321 to adjust the resonant frequency (resonant point) on the second or third harmonic of frequency band 1. At this time, the resonant signal contained in the radio frequency signal (that is, actually the above two subharmonic or third harmonic) can be transmitted to the ground through the variable filter network 322, while radio frequency signals in other frequency bands cannot be filtered by the variable filter network 322, and are normally transmitted to the signal output terminal 3202, and then transmitted to other devices; If the frequency bands of the radio frequency signals input into the filter device 32 are frequency band 1 and frequency band 2, then a variable filter network 322 can be controlled by the controller 321 to adjust the resonant frequency to the second or third harmonic of frequency band 1 , the resonant frequency of another variable filter network 322 is adjusted on the second or third harmonic of frequency band 2, and the two variable filter networks 322 can filter out the radio frequency signals corresponding to frequency band 1 and frequency band 2 respectively. resonant signal; by analogy, if there are more frequency bands, more variable filter networks 322 can be controlled to adjust to corresponding resonant frequencies, so as to filter out all resonant signals. In addition, the filtering device 32 provided by the embodiment of the present disclosure is an integral structure, and there is no need to install a filtering device 32 in each radio frequency channel, and only need to connect the radio frequency channels of all frequency bands to the filtering device 32 to realize filtering of all frequency bands The resonant signal, thus realizing the simplification of the RF circuit.

To sum up, the filter device 32 provided by the embodiment of the present disclosure has multiple filter networks in one device. Compared with the existing technical solutions, it is no longer necessary to install a large number of filters, which simplifies the radio frequency circuit; in addition, this The filter network in the filter device 32 publicly provided is a variable filter network 322, that is, the resonant frequency of the variable filter network 322 can be adjusted according to the frequency of the radio frequency signal, which is suitable for radio frequency signals of various frequency bands, and ensures that the filter device 32 is easy to use sex.

In some embodiments, each transceiver link corresponds to a radio frequency band, and the terminal radio frequency transceiver component 31 includes M transceiver links, where N≥M.

Specifically, in order to ensure that the filter device 32 can still filter out all resonance signals in some extreme scenarios (that is, the radio frequency transceiver links of all frequency bands all transmit and receive radio frequency signals), the number N of the variable filter network 322 can be greater than or equal to the number of transceivers. The number of links M.

Continue to refer to Fig. 3, in some embodiments, communication terminal also comprises host computer 33 and terminal antenna 34 (connecting line is not shown in the figure); Host computer 33 is connected controller 321 (connecting line is not shown in the figure) , the terminal antenna 34 is connected to the filter device 32 (connection line is not shown in the figure); the host computer 33 is used to obtain the adjustment instruction sent by the preset communication base station, and generate a control instruction based on the adjustment instruction, and the control instruction is used to instruct the controller 321 controls each variable filter network 322 to adjust to different resonant frequencies; the terminal antenna 34 is used to send and receive radio frequency signals with the communication base station.

Specifically, the host computer 33 and the controller 321 can be connected through a MIPI port, and the host computer 33 can send a control instruction to the controller 321 based on the frequency band of the radio frequency signal sent and received, so that the controller 321 controls the variable filter network 322 based on the control instruction Tuned to the resonant frequency corresponding to the RF signal. That is to say, in this embodiment, although the controller 321 in the filter device 32 adjusts the variable filter network 322 based on the control command, fundamentally speaking, the filter device 32 can still be considered to filter out the resonance signal based on the adjustment command.

Specifically, the radio frequency signal may be sent to the communication terminal through the terminal antenna 3423 after being filtered by the filtering device 32 .

Continue referring to FIG. 5 , in some embodiments, the variable filter network 322 includes a switch 3221, a variable capacitor 3222 and a variable inductance 3223; the first end of the switch 3221 is connected between the signal input terminal and the signal output terminal, and the switch 3221 The second terminal of the variable capacitor 3221 is connected to the first terminal of the variable capacitor 3222, the second terminal of the variable capacitor 3222 is connected to the first terminal of the variable inductor 3223, and the second terminal of the variable inductor 3223 is grounded.

Specifically, the variable capacitor 3222 represents a capacitor that can change its own capacitance value, and the variable inductance 3223 represents an inductor that can change its own inductance value; the controller 321 can control the opening and closing of the switch 3221, control the capacitance value of the variable capacitor 3222 and Control the inductance value of the variable inductance 3223, so as to realize the adjustment of the resonant frequency of the variable filter network 322. When a certain variable filter network 322 is not required to work, the switch 3221 of the variable filter network 322 can also be controlled to be turned off. In order to make the variable filtering network 322 no longer work (ie no longer filter any signal).

In some embodiments, the filter device 32 also includes a power supply 323; the power supply 323 is connected to the controller 321 and the variable filter network 322 (connection relationship is not shown in the figure); the power supply 323 is used for the controller 321 and the variable filter network 322 power supply.

Continue to refer to Fig. 5, in some embodiments, filtering device 32 also comprises power supply 323; and variable filter network 322 for power supply.

FIG. 6 is a schematic flow diagram of a resonance signal filtering method provided by an embodiment of the present disclosure. The method is implemented based on the communication base station in any one of the above-mentioned communication base station embodiments. The method includes:

S601. Obtain a radio frequency signal;

S602. Determine whether the resonance signal in the radio frequency signal exceeds the standard, and transmit the judgment result to the base station baseband processing component, so that the base station baseband processing component generates an adjustment instruction after determining that the resonance signal exceeds the standard in the judgment result;

Wherein, the adjustment instruction is used for transmission to the communication terminal, and for instructing the communication terminal to filter out the resonance signal.

Specifically, for the specific implementation of the method, reference may be made to the above-mentioned embodiments of the communication base station. This method is implemented based on the above-mentioned communication base station, so the same technical effect as that of the above-mentioned communication base station embodiments can also be achieved.

In some embodiments, the method also includes:

After the base station baseband processing component determines that the resonance signal does not exceed the standard, it generates a silent command and transmits it to the communication terminal;

Wherein, the silent instruction is used to control the filter device to maintain a silent state.

Specifically, after it is determined that the resonance signal exceeds the standard, a silent instruction can be generated, and the silent instruction is used to control the filter device to maintain a silent state. The silent state indicates that the filter device is in a state where it is no longer filtering the radio frequency signal. In some scenarios, The silent state may also be called the bypass state.

In some embodiments, the method also includes:

Obtaining the filtering identification transmitted by the communication terminal;

transmitting a silent command to the communication terminal based on the filtering identification;

Wherein, the filtering flag is issued after the communication terminal adjusts the filtering device based on the adjustment instruction.

Specifically, the adjustment instructions issued by the communication base station may include but not limited to adjustment instructions, the frequency point and bandwidth of the over-standard resonance signal (spurious signal), etc., to calculate the second harmonic of the operating frequency of the communication terminal (that is, the frequency of the radio frequency signal) Wave, third harmonic and intermodulation interference, and then adjust the filtering device according to the calculation results, such as adjusting the operating frequency and notch depth of the filtering device, etc. After filtering, a filtering mark can be generated, which represents After the communication terminal has filtered out the resonance signal, the communication base station may transmit a silence instruction to the communication terminal after receiving the filter identification, so that the communication terminal controls the filtering device to be in a silent state.

In some embodiments, the communication base station can also count the number of times the filter identification is received, that is, after the communication base station sends an adjustment command, the communication terminal filters out the resonance signal. A possible scenario is to generate a filter identification after filtering and send To the communication base station, but in fact, the resonance signal is not effectively filtered out, and the resonance signal still exceeds the standard. At this time, an adjustment command can be generated here to continue to make the communication terminal filter the resonance signal until the resonance signal no longer exceeds the standard.

Or, after receiving the filtering identification, the filtering identification is counted, for example, after determining that the resonance signal exceeds the standard, an adjustment command is issued, and the communication terminal sends the filtering identification after filtering. At this time, the communication base station receives the filtering identification once, but The resonant signal still exceeds the standard, and the second adjustment command is issued, and then the second filtering mark is received, and so on. When the number of times of receiving the filtering mark reaches a certain threshold, it is determined that the resonant signal cannot be filtered out. At this time A silence command can also be generated so that the communication terminal no longer filters out the resonance signal.

Fig. 7 is a schematic flowchart of another resonance signal filtering method provided by an embodiment of the present disclosure. The method is implemented based on the communication terminal of any one of the above-mentioned communication terminal embodiments, and the method includes:

S701. Obtain a radio frequency signal;

S702. Filter out the resonance signal based on the adjustment instruction sent by the communication base station.

Specifically, reference may be made to the above embodiments of the communication terminal for the specific implementation of the method. This method is implemented based on the above communication terminal, so the same technical effect as that of the above communication terminal embodiments can also be achieved.

FIG. 8 is a schematic structural diagram of a resonance signal filtering device provided by an embodiment of the present disclosure. The device is implemented based on any one of the above communication base station embodiments. The device includes:

A first acquisition module 81, configured to acquire radio frequency signals;

The judging module 82 is used to judge whether the resonance signal in the radio frequency signal exceeds the standard; if so, generate an adjustment instruction and transmit it to the communication terminal.

Specifically, for the specific implementation manner of the device, reference may be made to the above-mentioned embodiments of the communication base station. This device is implemented based on the above-mentioned communication base station, so it can also achieve the same technical effect as the above-mentioned communication base station embodiment.

FIG. 9 is a schematic structural diagram of another resonance signal filtering device provided by an embodiment of the present disclosure. The device is implemented based on the communication terminal of any one of the above-mentioned communication terminal embodiments. The device includes:

The second acquiring module 91 is configured to acquire radio frequency signals;

The filtering module 92 is configured to filter out the resonance signal based on the adjustment instruction sent by the communication base station.

Specifically, for the specific implementation manner of the device, reference may be made to the above-mentioned embodiment of the communication terminal. This device is implemented based on the above-mentioned communication terminal, and therefore can also achieve the same technical effect as the above-mentioned embodiment of the communication terminal.

An embodiment of the present disclosure further provides a communication system, and the communication system includes the communication base station in any one of the above first aspects, or includes the communication terminal in any one of the above second aspects.

It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these No such actual relationship or order exists between entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only specific implementation manners of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (16)

1. A communication base station, the communication base station comprising:

a base station baseband processing component and a spectrum analysis component;

the spectrum analysis component is connected with the base station baseband processing component;

the frequency spectrum analysis component is used for acquiring radio frequency signals, judging whether resonance signals in the radio frequency signals exceed standards or not, and transmitting a judging result to the base station baseband processing component;

the base station baseband processing component is used for acquiring the judging result and generating an adjusting instruction after determining that the judging result is that the resonance signal exceeds the standard;

the adjustment instruction is used for being transmitted to a preset communication terminal and used for instructing the communication terminal to filter the resonance signal.

2. The communication base station of claim 1, wherein the communication base station further comprises:

the base station antenna, the base station radio frequency front end component and the base station radio frequency transceiver component;

the base station antenna is connected with the base station radio frequency front end component, the base station radio frequency front end component is connected with the base station radio frequency transceiver component and the spectrum analysis component, and the base station radio frequency transceiver component is connected with the base station baseband processing component;

the base station antenna is used for receiving the radio frequency signals and transmitting the radio frequency signals to the base station radio frequency front-end assembly; the base station radio frequency front end component is used for generating a coupling signal corresponding to the radio frequency signal and transmitting the coupling signal to the spectrum analysis component; the frequency spectrum analysis component is also used for analyzing the coupling signal, judging whether the resonance signal exceeds the standard or not, and transmitting the judging result to the base station baseband processing component; the base station baseband processing component is further configured to transmit the adjustment instruction to the base station radio frequency transceiver component after determining that the determination result is that the resonance signal exceeds the standard; the base station radio frequency receiving and transmitting assembly is used for generating the radio frequency signal corresponding to the adjustment instruction based on the adjustment instruction, transmitting the radio frequency signal to the base station radio frequency front end assembly, and further transmitting the radio frequency signal to the communication terminal through the base station antenna.

3. The communication terminal is characterized by comprising a terminal radio frequency transceiver component and a filtering device;

the terminal radio frequency transceiver component is connected with the filter device;

the terminal radio frequency transceiver component is used for transmitting radio frequency signals to the filter device; the filtering device is used for filtering out resonance signals in the radio frequency signals based on an adjustment instruction sent by a preset communication base station.

4. A communication terminal according to claim 3, wherein the terminal radio frequency transceiver component comprises:

the system comprises a radio frequency transceiver, a power amplifier, a duplexer, a terminal antenna switch, a first matching network, a second matching network and a third matching network;

the radio frequency transceiver is connected with the power amplifier, the power amplifier is connected with the first matching network, the first matching network is connected with the duplexer, the duplexer is connected with the second matching network, the radio frequency transceiver is connected, the second matching network is connected with the terminal antenna switch, the terminal antenna switch is connected with the third matching network, and the third matching network is connected with the filtering device;

the paths among the power amplifier, the first matching network and the duplexer form a transmitting link, the paths among the duplexer and the radio frequency transceiver form a receiving link, and the transmitting link and the receiving link form a receiving and transmitting link.

5. The communication terminal according to claim 4, wherein the filtering means comprises:

a controller and N variable filter networks;

the controller is connected with the variable filter network;

the controller is used for controlling each variable filter network to be respectively adjusted to different resonant frequencies;

the variable filter network is used for filtering out resonance signals corresponding to the resonance frequency;

wherein N is more than or equal to 2.

6. The communication terminal according to claim 5, wherein each of the transceiver links corresponds to a radio frequency band, and the terminal radio frequency transceiver component comprises M transceiver links, where N is greater than or equal to M.

7. The communication terminal of claim 5, further comprising a host computer and a terminal antenna;

the upper computer is connected with the controller, and the terminal antenna is connected with the filter device;

the upper computer is used for acquiring an adjustment instruction sent by a preset communication base station and generating a control instruction based on the adjustment instruction, wherein the control instruction is used for instructing the controller to control each variable filter network to be respectively adjusted to different resonant frequencies; the terminal antenna is used for communicating with the communication base station and receiving and transmitting the radio frequency signals.

8. The communication terminal according to claim 7, wherein the filtering means comprises a signal input and a signal output;

the signal input end is communicated with the signal output end, the signal input end is connected with the terminal radio frequency transceiver component, and the signal output end is connected with the terminal antenna;

the N variable filter networks are connected in parallel between the signal input and the signal output.

9. The communication terminal of claim 5, wherein the variable filter network comprises a switch, a variable capacitance, and a variable inductance;

the first end of the switch is connected between the signal input end and the signal output end, the second end of the switch is connected with the first end of the variable capacitor, the second end of the variable capacitor is connected with the first end of the variable inductor, and the second end of the variable inductor is grounded.

10. A method of filtering out a resonance signal, wherein the method is implemented based on a communication base station according to any of claims 1-2, the method comprising:

acquiring the radio frequency signal;

judging whether a resonance signal in the radio frequency signal exceeds a standard or not, and transmitting a judging result to the base station baseband processing assembly so that the base station baseband processing assembly generates the adjusting instruction after determining that the judging result is that the resonance signal exceeds the standard;

the adjusting instruction is used for being transmitted to the communication terminal and used for instructing the communication terminal to filter the resonance signal.

11. The method as recited in claim 10, further comprising:

the base station baseband processing component generates a silencing instruction and transmits the silencing instruction to the communication terminal after determining that the judging result is that the resonance signal is not out of standard;

wherein, the silence instruction is used for controlling the filtering device to keep a silence state.

12. The method of claim 11, wherein the method further comprises:

obtaining a filtering identification transmitted by the communication terminal;

transmitting the silencing instruction to the communication terminal based on the filtering identification;

the filtering identification is sent after the communication terminal adjusts the filtering device based on the adjusting instruction.

13. A method of filtering out a resonance signal, characterized in that the method is implemented based on a communication terminal according to any of claims 3-9, the method comprising:

acquiring the radio frequency signal;

and filtering the resonance signal based on the adjustment instruction sent by the communication base station.

14. A resonant signal filtering apparatus, wherein the apparatus is implemented based on a communication base station according to any of claims 1-2, the apparatus comprising:

the first acquisition module is used for acquiring the radio frequency signals;

the judging module is used for judging whether the resonance signal in the radio frequency signal exceeds the standard or not; if yes, the adjustment instruction is generated and transmitted to the communication terminal.

15. A resonance signal filtering apparatus, characterized in that the apparatus is implemented based on a communication terminal according to any of the claims 3-9, the apparatus comprising:

the second acquisition module is used for acquiring the radio frequency signals;

and the filtering module is used for filtering the resonance signal based on the adjustment instruction sent by the communication base station.

16. A communication system, characterized in that it comprises a communication base station according to any of claims 1-2 or a communication terminal according to any of claims 3-9.

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