CN116347673A - Communication base station, terminal, system, resonance signal filtering method and device - Google Patents
Communication base station, terminal, system, resonance signal filtering method and device Download PDFInfo
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- CN116347673A CN116347673A CN202310114267.2A CN202310114267A CN116347673A CN 116347673 A CN116347673 A CN 116347673A CN 202310114267 A CN202310114267 A CN 202310114267A CN 116347673 A CN116347673 A CN 116347673A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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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
Technical Field
The disclosure relates to the technical field of communication, and in particular relates to a communication base station, a terminal, a system, a method and a device for filtering resonance signals.
Background
With the development of continuous upgrading of communication technology, communication systems are continuously complicated, people use the communication systems to perform activities of talking, video, surfing, and the like, and mutual interference, such as co-channel interference, harmonic interference, and the like, may exist in signal transmission and reception between the communication systems, wherein the harmonic interference is a common interference existing between the communication systems. The harmonic interference is unavoidable non-useful interference information generated by a nonlinear design device in the mobile terminal, and when the interference signal strength reaches a certain level, the communication quality can be seriously interfered, so that the communication terminal must consider harmonic suppression design in design, the harmonic interference signal generated by the communication terminal reaches the international standard of authentication, and the harmonic interference generated between communication terminals or communication systems is effectively avoided.
Disclosure of Invention
In order to solve the technical problems, the disclosure provides a communication base station, a terminal, a system, a method and a device for filtering resonance signals.
In a first aspect, the present disclosure provides a 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.
Optionally, the communication base station further includes:
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.
In a second aspect, the present disclosure further 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 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.
Optionally, the terminal radio frequency transceiver component includes:
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.
Optionally, the filtering device includes:
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.
Optionally, each receiving and transmitting link corresponds to a radio frequency band, and the terminal radio frequency receiving and transmitting assembly comprises M receiving and transmitting links, wherein N is greater than or equal to M.
Optionally, the communication terminal further comprises an upper 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 receiving and transmitting the radio frequency signals with the communication base station.
Optionally, the filtering device comprises a signal input end and a signal output end;
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.
Optionally, the variable filter network includes 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.
In a third aspect, the present disclosure further provides a method for filtering a resonant signal, where the method is implemented based on the communication base station in any one of the first aspect, and the method includes:
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.
Optionally, the method further comprises:
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.
Optionally, 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.
In a fourth aspect, the present disclosure further provides a method for filtering a resonant signal, where the method is implemented based on the communication terminal in any one of the second aspects, and the method includes:
acquiring the radio frequency signal;
and filtering the resonance signal based on the adjustment instruction sent by the communication base station.
In a fifth aspect, the present disclosure further provides a resonant signal filtering apparatus, where the apparatus is implemented based on the communication base station in any one of the first aspects, and the apparatus includes:
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.
In a sixth aspect, the present disclosure further provides a resonant signal filtering apparatus, where the apparatus is implemented based on the communication terminal in the communication system in any one of the second aspects, and the apparatus includes:
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.
In a seventh aspect, the present disclosure also provides a communication system comprising the communication base station according to any one of the first aspects or the communication terminal according to any one of the second aspects.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the disclosure provides 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 communication base station can detect whether the received radio frequency signals contain excessive resonance signals or not, and when the resonance signals are excessive (namely the resonance signals exceed the standard), an adjustment instruction can be generated to instruct the communication terminal to filter the radio frequency signals, filter the resonance signals in the radio frequency signals, and improve the quality of the radio frequency signals.
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 embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a communication base station according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another communication base station according to an embodiment of the disclosure;
fig. 3 is a schematic structural diagram of a first communication terminal according to an embodiment of the disclosure;
fig. 4 is a schematic structural diagram of a second communication terminal according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a filtering device according to an embodiment of the disclosure;
fig. 6 is a schematic flow chart of a method for filtering out a resonance signal according to an embodiment of the disclosure;
fig. 7 is a flowchart of another method for filtering out a resonance signal according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a resonant signal filtering device according to an embodiment of the disclosure;
fig. 9 is a schematic structural diagram of another resonant signal filtering device according to an embodiment of the disclosure.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
The following describes exemplary embodiments of a communication base station, a terminal, a system, a method and a device for filtering a resonance signal according to embodiments of the present disclosure with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a communication base station according to an embodiment of the present disclosure, where the communication base station includes:
a base station baseband processing component 11 and a spectrum analysis component 12; the spectrum analysis component 12 is connected with the base station baseband processing component 11; the spectrum analysis component 12 is configured to acquire a radio frequency signal, determine whether a resonance signal in the radio frequency signal exceeds a standard, and transmit a determination result to the base station baseband processing component 11; the base station baseband processing component 11 is configured to obtain a determination result, and generate an adjustment instruction after determining that the determination 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.
Specifically, the base station baseband processing unit 11 is a device capable of generating an adjustment command, which may be a CPU or the like, and the spectrum analysis unit 12 is a device capable of performing spectrum analysis on the received rf signal, which may be a spectrum analyzer or the like. The communication base station provided in this embodiment may perform spectrum analysis on the radio frequency signal after obtaining the radio frequency signal (the radio frequency signal is sent by the communication terminal), determine whether the resonance signal in the radio frequency signal exceeds the standard, and transmit the determination result to the base station baseband processing component 11, where after determining that the determination result is that the resonance signal exceeds the standard, the base station baseband processing component 11 generates an adjustment instruction, where the adjustment instruction is used to send the adjustment instruction to the terminal device (i.e. the terminal device corresponding to the radio frequency signal sent by the terminal device), and the terminal device may filter the radio frequency signal based on the adjustment instruction to filter the resonance signal. The method for judging whether the resonance signal exceeds the standard may be to judge 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 that the resonance signal exceeds the standard. Through the scheme, the communication base station can detect whether the received radio frequency signals contain excessive resonance signals or not, and when the resonance signals are excessive (namely the resonance signals exceed the standard), an adjustment instruction can be generated to instruct the communication terminal to filter the radio frequency signals, filter the resonance signals in the radio frequency signals, and improve the quality of the radio frequency signals.
Fig. 2 is a schematic structural diagram of another communication base station provided in an embodiment of the disclosure, and in some embodiments, the communication base station further 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 with the base station radio frequency front end assembly 14, the base station radio frequency front end assembly 14 is connected with the base station radio frequency transceiver assembly 15 and the spectrum analysis assembly 12, and the base station radio frequency transceiver assembly 15 is connected with the base station baseband processing assembly 11; the base station antenna 13 is configured to receive a radio frequency signal and transmit the radio frequency signal to the base station radio frequency front end module 14; the base station rf front-end module 14 is configured to generate a coupling signal corresponding to the rf signal and transmit the coupling signal to the spectrum analysis module 12; the spectrum analysis component 12 is further configured to analyze the coupling signal, determine whether the resonant signal exceeds a standard, and transmit the determination result to the base station baseband processing component 11; the base station baseband processing component 11 is further configured to transmit an adjustment instruction to the base station radio frequency transceiver component 15 after determining that the resonant signal exceeds the standard; the base station rf transceiver module 15 is configured to generate an rf signal corresponding to the adjustment instruction based on the adjustment instruction, transmit the rf signal to the base station rf front end module 14, and further transmit the rf signal to the communication terminal through the base station antenna 13.
Specifically, the base station antenna 13 represents a terminal for directly receiving and transmitting radio frequency signals, the radio frequency signals are transmitted into the air by the base station antenna 13 and then transmitted to the communication terminal, and the radio frequency signals sent by the communication terminal are received by the base station antenna 13. The base station antenna 13 receives the radio frequency signal and then passes through the base station radio frequency front end component 14, wherein the coupling signal passing through the coupler enters the spectrum analysis component 12 to perform spectrum analysis, judges whether the resonance signal (in some scenarios, harmonic interference and intermodulation interference can be included simultaneously, collectively referred to as spurious interference) of the radio frequency signal (coupling signal) exceeds standard, and transmits the judging result to the base station baseband processing component 11, the base station baseband processing component 11 generates an adjustment instruction based on the corresponding action made by the judging result, for example, after the judging result exceeds standard, the adjustment instruction is sent to the communication terminal, and the communication terminal can filter the radio frequency signal based on the adjustment instruction to filter the resonance signal in the radio frequency signal.
Fig. 3 is a schematic structural diagram of a first communication terminal according to an embodiment of the present disclosure, where the communication terminal includes a terminal radio frequency transceiver module 31 and a filtering device 32; the terminal radio frequency transceiver component 31 is connected with the filter device 32; the terminal radio frequency transceiver component 31 is configured to transmit radio frequency signals to the filtering device 32; the filtering device 32 is configured to filter out a resonance signal in the radio frequency signal based on an adjustment instruction sent by the preset communication base station.
Specifically, the terminal rf transceiver 31 represents a device for receiving and transmitting rf signals, which may be connected to a signal input end of the filtering device 32, and after the terminal rf transceiver 31 transmits rf signals, the rf signals first pass through the filtering device 32, and the resonant signals may be filtered by the filtering device 32.
In order to effectively filter the radio frequency signals, a filtering device 32 may be provided in the communication terminal, the filtering device 32 may be of an integral structure, and filtering of radio frequency signals of all frequency bands may be achieved by the filtering device 32, so as to simplify a circuit.
Fig. 4 is a schematic structural diagram of a second communication terminal provided in an embodiment of the present disclosure, where a terminal radio frequency transceiver module 31 includes: a radio frequency transceiver 311, a power amplifier 312, a diplexer 313, a terminal antenna switch 314, a first matching network 315, a second matching network 316 and a third matching network 317; the radio frequency transceiver 311 is connected with the power amplifier 312, the power amplifier 312 is connected with the first matching network 315, the first matching network 315 is connected with the duplexer 313, the duplexer 313 is connected with the second matching network 316, and is connected with the radio frequency transceiver 311, the second matching network 316 is connected with the terminal antenna switch 314, the terminal antenna switch 314 is connected with the third matching network 317, and the third matching network 317 is connected with the filter device 32; the path between the power amplifier 312, the first matching network 315 and the diplexer 313 forms a transmit link, the path between the diplexer 313 and the radio frequency transceiver 311 forms a receive link, and the transmit link and the receive link form a receive link.
Referring to fig. 4, specifically, a communication device may include a plurality of transceiving links for radio frequency signals, in this embodiment of the disclosure, a radio frequency transceiver 311 is a device for transceiving radio frequency signals, a power amplifier 312 is used for amplifying power of the transceiving radio frequency signals, a duplexer 313 is used for ensuring mutual isolation between the received radio frequency signals and the transmitted radio frequency signals, a terminal antenna switch 314 is used for adjusting connection relations of the transceiving links based on different frequency bands, that is, when the communication device works in a frequency band 1, the terminal antenna switch 314 is adjusted to a line corresponding to the frequency band 1, and when the communication device works in a frequency band 2, the terminal antenna switch 314 is adjusted to a line corresponding to the frequency band 2; the first matching network 315, the second matching network 316, and the third matching network 317 may be collectively referred to as a matching network (or impedance matching network), which mainly serves to solve the problem of impedance mismatch when transmitting radio frequency signals, and in some scenarios, the first matching network 315, the second matching network 316, and the third matching network 317 may be the same or different, and are not limited herein. In some scenarios, the devices for generating the harmonic signals are mainly the power amplifier 312 and the terminal antenna switch 314, where the frequency bandwidth of the harmonic signal generated by the terminal antenna switch 314 is relatively wide, and all the harmonic signals cannot be filtered by a single filtering network, so that the filtering device 32 is disposed between the terminal antenna switch 314 and the antenna 23, that is, in fact, disposed at a common end of all the transceiver links, so that it can be ensured that the filtering device 32 can filter all the frequency bands of the harmonic signals.
Fig. 5 is a schematic structural diagram of a filtering device according to an embodiment of the disclosure, and in some embodiments, the filtering device 32 includes: a controller 321 and N variable filter networks 322; the controller 321 is connected to a variable filter network 322 (connection relationship is not shown in the figure); the controller 321 is configured to control each variable filter network 322 to adjust to different resonant frequencies respectively; the variable filter network 322 is used for filtering out a resonance signal corresponding to the resonance frequency; wherein N is more than or equal to 2.
Specifically, the variable filter network 322 represents a filter network that can change its own resonance frequency, and the controller 321 represents a device that can adjust the resonance frequency of the variable filter network 322; with continued reference to fig. 5, in some embodiments, the filtering device 32 includes a signal input 3201 and a signal output 3202; the signal input end 3201 is communicated with the signal output end 3202, the signal input end 3201 is connected with the terminal radio frequency transceiver component 31, and the signal output end 3202 is connected with the terminal antenna 34; n variable filter networks 322 are connected in parallel between signal input terminal 3201 and signal output terminal 3202.
One end of the variable filter network 322 is connected between the signal input end 3201 and the signal output end 3202, and the other end of the variable filter network can be grounded; if the frequency band of the rf signal input to the filtering device 32 is the frequency band 1 (and only the frequency band 1), the controller 321 can control a certain variable filtering network 322 to adjust the resonant frequency (resonance point) to the second harmonic or the third harmonic of the frequency band 1, and at this time, the resonant signal (i.e. the second harmonic or the third harmonic) included in the rf signal can be transmitted to the ground through the variable filtering network 322, but the rf signals of other frequency bands can not be filtered by the variable filtering network 322, and normally transmitted to the signal output terminal 3202 and further transmitted to other devices; if the frequency band of the radio frequency signal input to the filtering device 32 is the frequency band 1 and the frequency band 2, the controller 321 can control a certain variable filtering network 322 to adjust the resonant frequency to the second harmonic or the third harmonic of the frequency band 1, adjust the resonant frequency of another variable filtering network 322 to the second harmonic or the third harmonic of the frequency band 2, and the two variable filtering networks 322 can respectively filter the resonant signals contained in the radio frequency signals corresponding to the frequency band 1 and the frequency band 2; similarly, if there are more frequency bands, more variable filter networks 322 can be controlled to adjust to the corresponding resonant frequencies respectively, so as to filter out all the resonant signals. In addition, the filtering device 32 provided in the embodiment of the present disclosure is of an integral structure, and the filtering device 32 is not required to be installed in each radio frequency channel, and only all the radio frequency channels of all the frequency bands need to be connected to the filtering device 32, so that the filtering of the resonance signals of all the frequency bands can be achieved, and the simplification of the radio frequency circuit is achieved.
In summary, in the filtering device 32 provided by the embodiment of the present disclosure, a plurality of filtering networks exist in one device, and compared with the prior art, a large number of filters are not required to be installed, so that the radio frequency circuit is simplified; in addition, the filter network in the filter device 32 provided by the present disclosure is the 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, so that the filter device 32 is suitable for radio frequency signals in various frequency bands, and the usability is ensured.
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 is greater than or equal to M.
Specifically, in order to ensure that the filtering device 32 can still filter out all the resonance signals in some extreme scenarios (i.e. all the frequency bands of the radio frequency transceiver links transmit radio frequency signals), the number N of variable filter networks 322 may be greater than or equal to the number M of transceiver links.
With continued reference to fig. 3, in some embodiments, the communication terminal further includes a host computer 33 and a terminal antenna 34 (connection lines not shown in the figures); the upper computer 33 is connected with a controller 321 (connection line is not shown in the figure), and the terminal antenna 34 is connected with the filter device 32 (connection line is not shown in the figure); the upper computer 33 is configured to obtain an adjustment instruction sent by a preset communication base station, and generate a control instruction based on the adjustment instruction, where the control instruction is configured to instruct the controller 321 to control each variable filter network 322 to adjust to different resonant frequencies respectively; the terminal antenna 34 is used for transceiving radio frequency signals with a communication base station.
Specifically, the upper computer 33 and the controller 321 may be connected through an MIPI port, and the upper computer 33 may send a control instruction to the controller 321 based on a frequency band of the radio frequency signal that is received and transmitted, so that the controller 321 controls the variable filter network 322 to adjust to a resonant frequency corresponding to the radio frequency signal based on the control instruction. That is, in this embodiment, although the controller 321 in the filtering apparatus 32 adjusts the variable filtering network 322 based on the control command, the filtering apparatus 32 may still be considered to filter out the resonance signal based on the adjustment command alone.
Specifically, the radio frequency signal, after being filtered by the filtering means 32, may be transmitted to the communication terminal through the terminal antenna 3423.
With continued reference to fig. 5, in some embodiments, variable filter network 322 includes a switch 3221, a variable capacitance 3222, and a variable inductance 3223; a first terminal of the switch 3221 is connected between the signal input terminal and the signal output terminal, a second terminal of the switch 3221 is connected to a first terminal of the variable capacitor 3222, a second terminal of the variable capacitor 3222 is connected to a first terminal of the variable inductor 3223, and a second terminal of the variable inductor 3223 is grounded.
Specifically, the variable capacitance 3222 represents a capacitance that can change the self capacitance value, and the variable inductance 3223 represents an inductance that can change the self inductance value; the controller 321 can control the switch 3221 to be turned on or off, control the capacitance value of the variable capacitor 3222 and control the inductance value of the variable inductor 3223, so as to adjust the resonant frequency of the variable filter network 322, and can also control the switch 3221 of the variable filter network 322 to be turned off when a certain variable filter network 322 is not needed to work, so that the variable filter network 322 is not work (i.e. no signal is filtered).
In some embodiments, the filtering device 32 further includes a power supply 323; a power supply 323 connects the controller 321 and the variable filter network 322 (connection relationship is not shown in the figure); the power supply 323 is used to power the controller 321 and the variable filter network 322.
With continued reference to fig. 5, in some embodiments, the filtering apparatus 32 further includes a power supply 323; a power supply 323 connects the controller 321 and the variable filter network 322 (connection lines not shown in the figure); the power supply 323 is used to power the controller 321 and the variable filter network 322.
Fig. 6 is a schematic flow chart of a method for filtering out a resonance signal according to an embodiment of the present disclosure, where the method is implemented based on the communication base station in any one of the embodiments of the communication base station, and the method includes:
s601, acquiring a radio frequency signal;
s602, judging whether a resonance signal in the radio frequency signal exceeds a standard or not, and transmitting a judging result to a base station baseband processing assembly so that the base station baseband processing assembly generates an 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 out the resonance signal.
Specifically, the specific implementation of the method may refer to the embodiment of the communication base station, and the method is implemented based on the communication base station, so that the same technical effects as those of the embodiment of the communication base station can be achieved.
In some embodiments, the method further comprises:
after the base station baseband processing component determines that the resonance signal is not out of standard as a result of determination, generating a silencing instruction and transmitting the silencing instruction to the communication terminal;
wherein, the silence instruction is used for controlling the filter device to keep the silence state.
Specifically, after determining that the resonance signal is out of standard, a mute instruction may be generated, where the mute instruction is used to control the filtering device to maintain a mute state, where the mute state indicates that the filtering device is in a state that does not filter the radio frequency signal any more, and in some scenarios, the mute state may also be referred to as bypass state.
In some embodiments, the method further comprises:
obtaining a filtering identification transmitted by a communication terminal;
transmitting a silencing instruction to the communication terminal based on the filtering identification;
the filtering mark is sent after the communication terminal adjusts the filtering device based on the adjusting instruction.
Specifically, the adjustment instruction sent by the communication base station may include, but is not limited to, an adjustment instruction, a frequency point and a bandwidth of an out-of-standard resonance signal (spurious signal), etc. to calculate a second harmonic, a third harmonic and intermodulation interference of an operating frequency (i.e. a radio frequency signal frequency) of the communication terminal, and further adjust the filtering device according to a calculation result, for example, adjust the operating frequency and notch depth of the filtering device, etc. after filtering, a filtering identifier may be generated, where the filtering identifier represents that the communication terminal has performed filtering of the resonance signal, and after receiving the filtering identifier, the communication base station may transmit a silence instruction to the communication terminal, so that the communication terminal controls the filtering device to be in a silence state.
In some embodiments, the communication base station may also count the number of times of receiving the filtering identifier, that is, after the communication base station sends the adjustment instruction, the communication terminal filters the resonance signal, where a possible scene is that the filtering identifier is generated after filtering and sent to the communication base station, but the resonance signal is not effectively filtered, and still exceeds the standard, at this time, the adjustment instruction may be generated here, so as to continue to enable the communication terminal to filter the resonance signal until the resonance signal no longer exceeds the standard.
Or after receiving the filtering identification, counting the filtering identification, for example, sending an adjustment instruction after determining that the resonant signal exceeds the standard, sending the filtering identification after the communication terminal filters, at this time, receiving the filtering identification once by the communication base station, but the resonant signal still exceeds the standard, sending a second adjustment instruction, receiving the second filtering identification, and the like, when the number of times of receiving the filtering identification reaches a certain number of thresholds, determining that the resonant signal cannot be filtered, and at this time, generating a silence instruction so that the communication terminal can not filter the resonant signal any more.
Fig. 7 is a schematic flow chart of another method for filtering out a resonance signal according to an embodiment of the present disclosure, where the method is implemented based on the communication terminal according to any one of the embodiments of the communication terminal, and the method includes:
s701, acquiring a radio frequency signal;
s702, filtering out resonance signals based on an adjustment instruction sent by the communication base station.
Specifically, the specific implementation of the method may refer to the embodiment of the communication terminal, and the method is implemented based on the communication terminal, so that the same technical effects as those of the embodiment of the communication terminal can be achieved.
Fig. 8 is a schematic structural diagram of a resonant signal filtering device provided by an embodiment of the present disclosure, where the device is implemented based on a communication base station in any one of the foregoing communication base station embodiments, and the device includes:
a first acquiring module 81, configured to acquire a radio frequency signal;
a judging module 82, configured to judge whether a resonance signal in the radio frequency signal exceeds a standard; if yes, generating an adjustment instruction and transmitting the adjustment instruction to the communication terminal.
Specifically, the specific implementation of the device may refer to the embodiment of the communication base station, and the device is implemented based on the communication base station, so that the same technical effects as those of the embodiment of the communication base station can be achieved.
Fig. 9 is a schematic structural diagram of another resonant signal filtering device provided in an embodiment of the present disclosure, where the device is implemented based on a communication terminal in any one of the foregoing communication terminal embodiments, and the device includes:
a second acquisition module 91, configured to acquire a radio frequency signal;
the filtering module 92 is configured to filter the resonance signal based on the adjustment instruction sent by the communication base station.
Specifically, the specific implementation of the device may refer to the embodiment of the communication terminal, and the device is implemented based on the communication terminal, so that the same technical effects as those of the embodiment of the communication terminal can be achieved.
The embodiment of the disclosure also provides a communication system, which comprises the communication base station of any one of the first aspect or the communication terminal of any one of the second aspect.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310114267.2A CN116347673A (en) | 2023-02-14 | 2023-02-14 | Communication base station, terminal, system, resonance signal filtering method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310114267.2A CN116347673A (en) | 2023-02-14 | 2023-02-14 | Communication base station, terminal, system, resonance signal filtering method and device |
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| CN116347673A true CN116347673A (en) | 2023-06-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117895912A (en) * | 2024-03-18 | 2024-04-16 | 中兴通讯股份有限公司 | Adjustable filter and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117895912A (en) * | 2024-03-18 | 2024-04-16 | 中兴通讯股份有限公司 | Adjustable filter and electronic equipment |
| CN117895912B (en) * | 2024-03-18 | 2024-07-23 | 中兴通讯股份有限公司 | Adjustable filter and electronic equipment |
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