CN113572487A

CN113572487A - Radio frequency signal clutter suppression method, base station and terminal

Info

Publication number: CN113572487A
Application number: CN202110841021.6A
Authority: CN
Inventors: 何文卿
Original assignee: Wingtech Communication Co Ltd
Current assignee: Wingtech Communication Co Ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-10-29
Anticipated expiration: 2041-07-23
Also published as: CN113572487B; WO2023000781A1

Abstract

The application relates to a clutter suppression method for radio frequency signals, a base station and a terminal, wherein the base station comprises: the first radio frequency remote unit is used for receiving a first radio frequency signal sent by a terminal and acquiring a clutter signal in the first radio frequency signal; the first baseband unit is configured to send a first clutter adjustment instruction to the terminal when the clutter signal in the first radio frequency signal does not meet a first preset clutter standard, so that the terminal adjusts itself according to the first clutter adjustment instruction until the clutter signal in the first radio frequency signal meets the first preset clutter standard. By adopting the scheme, the clutter signal detection mechanism is arranged on the base station side, the terminal which meets the requirement of the clutter in the communication system is found and adjusted until the requirement is met, the limitation on the clutter in the communication system is realized, the clutter in the communication system can be effectively inhibited, and the interference of the clutter on the radio frequency signal in the communication system is reduced.

Description

Radio frequency signal clutter suppression method, base station and terminal

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method, a base station, and a terminal for suppressing clutter of radio frequency signals.

Background

In the current communication system, especially in the communication system widely used in the global scope such as 2G, 3G, 4G and 5G, there are a large number of terminal devices, such as mobile phones and other terminal devices, which may generate noise and harmonic waves during use, and if the noise and harmonic waves are not well suppressed, the noise and harmonic waves exceed the bearing capacity of the communication system, the noise and harmonic waves will cause serious interference to the radio frequency signals of the communication system.

In the related art, clutter and harmonic authentication is performed on terminal equipment before batch production until the terminal equipment passes the authentication, but the authentication only performs the clutter and harmonic authentication on a terminal model machine, and it cannot be guaranteed that each terminal equipment leaving factory can meet the authentication standard, and even if the terminal equipment leaving factory can meet the authentication standard, the clutter and harmonic can still possibly meet the authentication standard along with the change of various use conditions or due to certain damage of components, so that serious interference is caused to a communication system.

Disclosure of Invention

In view of the above, it is desirable to provide a method, a base station and a terminal for suppressing clutter of a radio frequency signal, which can effectively suppress clutter in a communication system.

A base station, comprising:

the first radio remote unit is used for receiving a first radio frequency signal sent by a terminal and acquiring a clutter signal in the first radio frequency signal;

the first baseband unit is configured to send a first clutter adjustment instruction to the terminal when the clutter signal in the first radio frequency signal does not meet a first preset clutter standard, so that the terminal adjusts itself according to the first clutter adjustment instruction until the clutter signal in the first radio frequency signal meets the first preset clutter standard.

In one embodiment, the first spurious adjustment instruction comprises at least one of a first power supply mode adjustment instruction and a first output power adjustment instruction of a first radio frequency power amplifier in the terminal, and the first power supply mode adjustment instruction has a higher priority than the first output power adjustment instruction.

In one embodiment, the first power supply mode adjustment instruction includes at least one of a first ET mode instruction, a first APT mode instruction, and a first maximum voltage mode instruction; the first output power adjustment command includes a first power down command.

In one embodiment, the first baseband unit is used for performing a first-stage adjustment on a first radio frequency signal;

taking any one of the first power supply mode adjusting instructions as a current adjusting instruction;

the first baseband unit sends a current adjusting instruction to the terminal so that the terminal can adjust the power supply mode of the first radio frequency power amplifier and send a first radio frequency signal after current adjustment to the base station;

when the clutter signal in the currently adjusted first radio frequency signal does not meet a first preset clutter standard, taking any remaining adjusting instruction in the first power supply mode adjusting instruction as a current adjusting instruction;

and returning to the step that the first baseband unit sends the current adjustment instruction to the terminal until the first-stage adjustment stopping condition is met, and obtaining the first radio-frequency signal after the first-stage adjustment.

In one embodiment, the first baseband unit is further configured to perform a second-stage adjustment on the first rf signal;

taking the first radio frequency signal adjusted in the first stage as a current radio frequency signal;

when the clutter signal of the current radio frequency signal does not meet the first preset clutter standard, taking the first power reduction instruction as a current adjustment instruction;

the first baseband unit sends a current adjusting instruction to the terminal so that the terminal adjusts the output power of the first radio frequency power amplifier and sends an adjusted current radio frequency signal to the base station;

and returning to the step of taking the first power reduction instruction as the current adjustment instruction when the clutter signal of the current radio-frequency signal does not meet the first preset clutter standard until the clutter signal in the current radio-frequency signal meets the first preset clutter standard, and outputting the first radio-frequency signal after the second-stage adjustment.

In one embodiment, the first remote radio unit is further configured to receive a second radio frequency signal sent by the first remote radio unit, and acquire a clutter signal in the second radio frequency signal;

the first baseband unit is further configured to control the first radio remote unit to stop working when the clutter signal in the second radio frequency signal does not meet the second preset clutter standard.

In one embodiment, the first remote radio unit includes a plurality of remote radio units, and the first baseband unit is further configured to transfer a terminal on the first remote radio unit that is deactivated to the first remote radio unit that is not deactivated.

In one embodiment, the first baseband unit is further configured to acquire a serial number of a terminal whose clutter signal does not satisfy a first preset clutter standard and a serial number of a first remote radio unit whose clutter signal does not satisfy a second preset clutter standard, and manage and control according to the serial number of the terminal and the serial number of the first remote radio unit.

A terminal, comprising:

the first radio frequency processing unit is used for receiving a third radio frequency signal sent by the base station and acquiring a clutter signal in the third radio frequency signal;

and the second baseband unit is used for sending a second clutter adjusting instruction to the base station when the clutter signals in the third radio frequency signal do not meet the third preset clutter standard, so that the base station adjusts the base station according to the clutter adjusting instruction until the clutter signals in the third radio frequency signal meet the third preset clutter standard.

In one embodiment, the second clutter adjustment instruction comprises at least one of a second power supply mode adjustment instruction and a second output power adjustment instruction for a second rf power amplifier in the base station, and the second power supply mode adjustment instruction has a higher priority than the second output power adjustment instruction.

In one embodiment, the second power supply mode adjustment instruction includes at least one of a second ET mode instruction, a second APT mode instruction, and a second maximum voltage mode instruction; the second output power adjustment command comprises a second power down command.

In one embodiment, the second baseband unit is configured to perform a first-stage adjustment on the third rf signal;

taking any one of the second power supply mode adjusting instructions as a current adjusting instruction;

the second baseband unit sends a current adjusting instruction to the base station so that the base station adjusts the power supply mode of the second radio frequency power amplifier and sends a currently adjusted third radio frequency signal to the terminal;

when the clutter signal in the currently adjusted third radio frequency signal does not meet a third preset clutter standard, taking any remaining adjusting instruction in the second power supply mode adjusting instruction as a current adjusting instruction;

and returning to the step that the second baseband unit sends the current adjustment instruction to the base station until the first-stage adjustment stopping condition is met, and obtaining a third radio frequency signal after the first-stage adjustment.

In one embodiment, the second baseband unit is further configured to perform a second stage adjustment on the third rf signal;

taking the third radio frequency signal adjusted in the first stage as a current radio frequency signal;

when the clutter signal of the current radio frequency signal does not meet a third preset clutter standard, taking the second power reduction instruction as a current adjustment instruction;

the second baseband unit sends a current adjusting instruction to the base station so that the base station adjusts the output power of the second radio frequency power amplifier and sends an adjusted current radio frequency signal to the terminal;

and returning to the step of taking the second power reduction instruction as the current adjustment instruction when the clutter signal of the current radio frequency signal does not meet the third preset clutter standard until the clutter signal in the current radio frequency signal meets the third preset clutter standard, and outputting the third radio frequency signal after the second-stage adjustment.

In one embodiment, the first radio frequency processing unit is further configured to receive a fourth radio frequency signal sent by the first radio frequency processing unit, and acquire a clutter signal in the fourth radio frequency signal;

the second baseband unit is further configured to control the first radio frequency processing unit to stop working when the clutter signal in the fourth radio frequency signal does not meet a fourth preset clutter standard.

A clutter suppression method of a radio frequency signal is applied to a first communication device, and the method comprises the following steps:

receiving a fifth radio frequency signal sent by the second communication equipment;

acquiring a clutter signal in the fifth radio frequency signal;

and when the clutter signal in the fifth radio frequency signal does not meet the fifth preset clutter standard, sending a third clutter adjusting instruction to the second communication equipment so that the second communication equipment adjusts itself according to the third clutter adjusting instruction until the clutter signal in the fifth radio frequency signal meets the fifth preset clutter standard.

In one embodiment, the third spur adjustment instruction comprises at least one of a third power supply mode adjustment instruction and a third output power adjustment instruction of a third radio frequency power amplifier in the second communication device, and the third power supply mode adjustment instruction has a higher priority than the third output power adjustment instruction.

In one embodiment, the third power supply mode adjustment instruction includes at least one of a third ET mode instruction, a third APT mode instruction, and a third maximum voltage mode instruction; the third output power adjustment command comprises a third power down command.

In one embodiment, sending a third clutter adjustment instruction to the second communications device to cause the second communications device to adjust itself according to the third clutter adjustment instruction until the clutter signals in the fifth radio frequency signal meet a fifth preset clutter standard includes:

taking any one of the third power supply mode adjustment instructions as a current adjustment instruction;

sending a current adjusting instruction to the second communication equipment so that the second communication equipment adjusts the power supply mode of the third radio frequency power amplifier, and sending a currently adjusted fifth radio frequency signal to the first communication equipment;

when the clutter signal in the currently adjusted fifth radio frequency signal does not meet a fifth preset clutter standard, taking any remaining adjusting instruction in the third power supply mode adjusting instruction as a current adjusting instruction;

and returning to the step of sending the current adjusting instruction to the second communication equipment until the first-stage adjusting stop condition is met, and obtaining a fifth radio-frequency signal after the first-stage adjustment.

In one embodiment, the method further includes sending a third clutter adjustment instruction to the second communication device to enable the second communication device to adjust itself according to the third clutter adjustment instruction until a clutter signal in the fifth radio frequency signal meets a fifth preset clutter standard, and further including:

taking the fifth radio frequency signal adjusted in the first stage as a current radio frequency signal;

when the clutter signal of the current radio frequency signal does not meet the fifth preset clutter standard, taking the third power reduction instruction as a current adjustment instruction;

sending a current adjusting instruction to the second communication equipment so that the second communication equipment adjusts the output power of the third radio frequency power amplifier and sends the adjusted current radio frequency signal to the first communication equipment;

and returning to the step of taking the third power reduction instruction as the current adjustment instruction when the clutter signal of the current radio frequency signal does not meet the fifth preset clutter standard until the clutter signal in the current radio frequency signal meets the fifth preset clutter standard, and outputting the fifth radio frequency signal after the second-stage adjustment.

In one embodiment, when the first communication device is a base station and the base station includes a plurality of first remote radio units, the method further includes:

receiving a sixth radio frequency signal sent by the first remote radio unit;

acquiring a clutter signal in the sixth radio frequency signal;

and when the clutter signal in the sixth radio frequency signal does not meet the sixth preset clutter standard, controlling the first radio remote unit to stop working, and transferring the second communication equipment on the first radio remote unit which stops working to other first radio remote units which do not stop working.

In one embodiment, when the first communication device is a terminal and the terminal includes a first radio frequency processing unit, the method further includes:

receiving a seventh radio frequency signal sent by the first radio frequency processing unit;

acquiring a clutter signal in the seventh radio frequency signal;

and when the clutter signal in the seventh radio frequency signal does not meet the seventh preset clutter standard, controlling the first radio frequency processing unit to stop working.

In one embodiment, the method further comprises: acquiring a serial number of second communication equipment of which the clutter signal does not meet a fifth preset clutter standard, a serial number of a first radio frequency remote unit of which the clutter signal does not meet a sixth preset clutter standard and a serial number of a first radio frequency processing unit of which the clutter signal does not meet a seventh preset clutter standard, and managing and controlling according to the serial number of the second communication equipment, the serial number of the first radio frequency remote unit and the serial number of the first radio frequency processing unit.

A clutter suppression device for radio frequency signals, applied to a first communication device, comprises:

the signal receiving and transmitting module is used for receiving a fifth radio frequency signal sent by the second communication equipment;

the clutter acquisition module is used for acquiring a clutter signal in the fifth radio frequency signal;

and the clutter suppression module is used for sending a third clutter adjustment instruction to the second communication equipment through the signal transceiving module when the clutter signal in the fifth radio frequency signal does not meet the fifth preset clutter standard, so that the second communication equipment adjusts itself according to the third clutter adjustment instruction until the clutter signal in the fifth radio frequency signal meets the fifth preset clutter standard.

In one embodiment, the clutter suppression module is specifically configured to:

In one embodiment, the clutter suppression module is further configured to:

In one embodiment, when the first communication device is a base station and the base station includes a plurality of first remote radio units, the clutter acquisition module is further configured to: receiving a sixth radio frequency signal sent by the first radio frequency remote unit, and acquiring a clutter signal in the sixth radio frequency signal;

the clutter suppression module is further configured to: and when the clutter signal in the sixth radio frequency signal does not meet the sixth preset clutter standard, controlling the first radio remote unit to stop working, and transferring the second communication equipment on the first radio remote unit which stops working to other first radio remote units which do not stop working.

In one embodiment, when the first communication device is a terminal and the terminal includes the first radio frequency processing unit, the clutter acquisition module is further configured to: receiving a seventh radio frequency signal sent by the first radio frequency processing unit, and acquiring a clutter signal in the seventh radio frequency signal;

the clutter suppression module is further configured to: and when the clutter signal in the seventh radio frequency signal does not meet the seventh preset clutter standard, controlling the first radio frequency processing unit to stop working.

In one embodiment, the clutter suppression module is further configured to: acquiring a serial number of second communication equipment of which the clutter signal does not meet a fifth preset clutter standard, a serial number of a first radio frequency remote unit of which the clutter signal does not meet a sixth preset clutter standard and a serial number of a first radio frequency processing unit of which the clutter signal does not meet a seventh preset clutter standard, and managing and controlling according to the serial number of the second communication equipment, the serial number of the first radio frequency remote unit and the serial number of the first radio frequency processing unit.

A computer device comprising a processor and a memory, the memory having stored thereon a computer program which, when executed by the processor, carries out the steps of the method of clutter suppression of radio frequency signals as set out above.

A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the aforementioned method for clutter suppression of radio frequency signals.

According to the radio frequency signal clutter suppression method, the device, the base station, the terminal, the computer equipment and the storage medium, the clutter signal detection mechanism is arranged on the base station side or the terminal side, the terminal or the base station, which does not meet the requirement on clutter in the communication system, is found and is adjusted until the requirement is met, the limitation on the clutter in the communication system is realized, so that the clutter in the communication system can be effectively suppressed, and the interference of the clutter on the radio frequency signal in the communication system is reduced.

Drawings

Fig. 1 is a diagram of an application scenario of a base station and a terminal in an embodiment;

FIG. 2 is a diagram illustrating a base station in one embodiment;

FIG. 3 is a diagram illustrating a base station in another embodiment;

FIG. 4 is a flow diagram illustrating an embodiment of a base station detecting a clutter signal of a radio frequency signal transmitted by a terminal;

FIG. 5 is a diagram illustrating a power mode configuration of the terminal in one embodiment;

FIG. 6 is a flow diagram illustrating the execution of a clutter adjustment instruction by a terminal in one embodiment;

FIG. 7 is a flow diagram illustrating an embodiment of a base station detecting a clutter signal of a self RF signal;

FIG. 8 is a diagram illustrating a structure of a terminal in one embodiment;

fig. 9 is a schematic structural diagram of a terminal in another embodiment;

FIG. 10 is a flow diagram illustrating an embodiment of a terminal detecting a clutter signal of a radio frequency signal transmitted by a base station;

FIG. 11 is a schematic diagram of a power mode structure of a base station in one embodiment;

FIG. 12 is a flow diagram illustrating a base station performing a clutter adjustment instruction according to one embodiment;

FIG. 13 is a flowchart illustrating an embodiment of a terminal detecting a clutter signal of a self RF signal;

FIG. 14 is a flowchart illustrating a method for clutter suppression of RF signals according to one embodiment;

FIG. 15 is a schematic diagram of an embodiment of an apparatus for clutter suppression of RF signals;

FIG. 16 is a block diagram of a computer device in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The base station provided by the application can be applied to the application environment as shown in fig. 1. The base station is communicated with the terminal through a network and comprises a first radio remote unit and a first baseband unit, wherein the first radio remote unit is used for receiving a first radio frequency signal sent by the terminal and acquiring a clutter signal in the first radio frequency signal; the first baseband unit is used for sending a first clutter adjusting instruction to the terminal when the clutter signals in the first radio frequency signals do not meet a first preset clutter standard, so that the terminal can adjust the terminal according to the first clutter adjusting instruction until the clutter signals in the first radio frequency signals meet the first preset clutter standard.

The terminal provided by the application can also be applied to the application environment shown in fig. 1. The base station communicates with the terminal through a network, and the terminal comprises a first radio frequency processing unit used for receiving a third radio frequency signal sent by the base station and acquiring a clutter signal in the third radio frequency signal; and the second baseband unit is used for sending a second clutter adjusting instruction to the base station when the clutter signals in the third radio frequency signal do not meet the third preset clutter standard, so that the base station adjusts the base station according to the second clutter adjusting instruction until the clutter signals in the third radio frequency signal meet the third preset clutter standard.

The base station may be, but is not limited to, a 2G, 3G, 4G, and 5G base station, and the terminal may be, but is not limited to, various personal computers, notebook computers, smart phones, and tablet computers.

In one embodiment, there is provided a base station 100, as shown in fig. 2, the base station 100 comprising: a first remote radio unit 110 and a first baseband unit 120. The first remote radio unit 110 is configured to receive a first radio frequency signal sent by the terminal 200, and acquire a clutter signal in the first radio frequency signal; the first baseband unit 120 is configured to send a first clutter adjustment instruction to the terminal 200 when the clutter signals in the first radio frequency signal do not meet a first preset clutter standard, so that the terminal 200 adjusts itself according to the first clutter adjustment instruction until the clutter signals in the first radio frequency signal meet the first preset clutter standard.

It should be noted that the clutter signals include adjacent channel leakage ratio, in-band spurs, out-of-band spurs, harmonics and other signals that do not belong to useful signals (signals that need to be interacted) in the communication system, and the first preset clutter standard includes a standard set for these signals, and may specifically be a preset reasonable range.

Specifically, referring to fig. 2, the first remote rf unit 110 in the base station 100 may communicate with the terminal 200 through an antenna, and receive a first rf signal transmitted by the terminal 200, where the first rf signal may be any rf signal. The first remote radio unit 110 obtains a clutter signal in the first radio signal after receiving the first radio signal, determines whether the clutter signal meets a first preset clutter standard, and sends a determination result to the first baseband unit 120. If the clutter signal does not meet the first predetermined clutter standard, the first baseband unit 120 sends a first clutter adjustment command to the first remote radio unit 110, and the first remote radio unit 110 sends the first clutter adjustment command to the terminal 200 through an antenna. After receiving the first clutter adjustment instruction, the terminal 200 adjusts itself according to the first clutter adjustment instruction, and after adjustment, sends the first radio frequency signal to the first radio frequency remote unit 110 again, and the above-mentioned process is repeated until the clutter signal in the first radio frequency signal sent by the terminal 200 meets the first preset clutter standard.

Further, in a specific example, as shown in fig. 3, the first remote radio unit 110 may include: a first rf front-end component 111, a first rf transceiver unit 112 and a first spectrum analysis unit 113. The antenna is connected to the first rf front-end component 111, the main path of the first rf front-end component 111 is connected to the first rf transceiving unit 112, the coupling output end is connected to the first spectrum analysis unit 113, the first rf front-end component 111 receives the first rf signal of the terminal 200 through the antenna and outputs the first rf signal to the first spectrum analysis unit 113 through coupling, and the first spectrum analysis unit 113 performs spectrum analysis on the detected first rf signal to distinguish a useful signal from a clutter signal, and determines whether the clutter signal meets a first preset clutter standard, and sends the determination result to the first baseband unit 120.

The first baseband unit 120 may include: a first baseband processing unit 121 and a first modem unit 122. When the first baseband processing unit 121 receives the judgment result sent by the first spectrum analyzing unit 113 and the result is that the clutter signal does not satisfy the first preset clutter standard, the first baseband processing unit 121 sends a first clutter adjusting instruction to the first modem unit 122, and sends the first clutter adjusting instruction to the terminal 200 through the first radio frequency transceiving unit 112, the first radio frequency front-end component 111, and the antenna in sequence, so that the terminal 200 adjusts itself according to the first clutter adjusting instruction until the clutter signal in the first radio frequency signal satisfies the first preset clutter standard.

Specifically, as shown in fig. 4, the detection and suppression of the first radio frequency signal transmitted by the terminal 200 by the base station 100 may include the following steps:

s201, an antenna in a first remote radio unit receives a first radio frequency signal sent by a terminal.

S202, the first rf front-end component couples and outputs the received first rf signal to the first spectrum analysis unit.

S203, the first spectrum analysis unit carries out spectrum analysis on the first radio frequency signal obtained by coupling so as to distinguish a useful signal from a clutter signal.

And S204, the first spectrum analysis unit judges whether the clutter signal meets a first preset clutter standard, namely whether the clutter signal is in a reasonable range, if the clutter signal does not meet the first preset clutter standard, the step S205 is executed, otherwise, the step S206 is executed.

And S205, the first baseband unit informs the terminal that the clutter signals are normal.

S206, the first baseband unit sends a first clutter adjusting instruction to the terminal according to the clutter signal so that the terminal can adjust itself, and sends out the first radio frequency signal again after adjustment so as to repeatedly interact the terminal and the base station until the first radio frequency signal sent by the terminal meets a first preset clutter standard.

In some embodiments, the first spur adjustment instruction comprises at least one of a first power supply mode adjustment instruction and a first output power adjustment instruction of a first radio frequency power amplifier in the terminal 200, and the first power supply mode adjustment instruction has a higher priority than the first output power adjustment instruction.

That is, the first spur adjustment instruction may include two types: one is a first power supply mode adjustment instruction, that is, the noise is reduced by adjusting the power supply mode of the first rf power amplifier in the terminal 200, so that the noise signal meets a first preset noise standard; the other is a first output power adjustment command, that is, the output power of the first rf power amplifier in the terminal 200 is adjusted to reduce the noise, so that the noise signal satisfies the first predetermined noise criterion. Optionally, the first Power supply mode adjustment instruction includes at least one of a first ET (Envelope Tracking) mode instruction, a first APT (Average Power Tracking) mode instruction, and a first maximum mode instruction; the first output power adjustment command includes a first power down command. The first ET mode and the first APT mode track power changes of the radio frequency power amplifier and adjust voltage of the power amplifier in real time, and specifically, the first ET mode enables the radio frequency power amplifier to work in a saturated state all the time and controls output power by adjusting power supply voltage of the radio frequency power amplifier. The first APT mode is to adjust the power supply voltage of the power amplifier according to the output power of the radio frequency power amplifier through an algorithm. The first maximum mode is to operate the power rf amplifier at the maximum voltage, which is the smaller of the maximum voltage that the power rf amplifier can withstand and the maximum voltage that the APT/ET unit can provide. Optionally, the priority of the first power supply mode adjustment instruction is higher than the priority of the first output power supply rate adjustment instruction, that is, during adjustment, noise is preferentially reduced by adjusting the power supply mode of the first radio frequency power amplifier in the terminal 200, and after the adjustment is invalid in this manner, noise is reduced by adjusting the output power of the first radio frequency power amplifier in the terminal 200, so that a situation that the output power of the terminal is low and the base station hardly receives a radio frequency signal of the terminal due to direct adjustment of the output power of the terminal can be effectively avoided.

In some embodiments, the first baseband unit 120 is configured to perform a first-stage adjustment on the first rf signal; taking any one of the first power supply mode adjusting instructions as a current adjusting instruction; the first baseband unit 120 sends a current adjustment instruction to the terminal 200, so that the terminal 200 adjusts the power supply mode of the first rf power amplifier, and sends a currently adjusted first rf signal to the base station 100; when the clutter signal in the currently adjusted first radio frequency signal does not meet a first preset clutter standard, taking any remaining adjusting instruction in the first power supply mode adjusting instruction as a current adjusting instruction; returning to the step of sending the current adjustment instruction to the terminal 200 by the first baseband unit 120, and obtaining the first radio frequency signal after the first-stage adjustment until the first-stage adjustment stop condition is satisfied. The first-stage adjustment stop condition means that no remaining adjustment instruction can be used as the current adjustment instruction, that is, all power supply mode adjustment instructions are executed once.

Further, the first baseband unit 120 is further configured to perform a second-stage adjustment on the first rf signal; taking the first radio frequency signal adjusted in the first stage as a current radio frequency signal; when the clutter signal of the current radio frequency signal does not meet the first preset clutter standard, taking the first power reduction instruction as a current adjustment instruction; the first baseband unit 120 sends a current adjustment instruction to the terminal 200, so that the terminal 200 adjusts the output power of the first rf power amplifier, and sends the adjusted current rf signal to the base station 100; and returning to the step of taking the first power reduction instruction as the current adjustment instruction when the clutter signal of the current radio-frequency signal does not meet the first preset clutter standard until the clutter signal in the current radio-frequency signal meets the first preset clutter standard, and outputting the first radio-frequency signal after the second-stage adjustment.

Specifically, fig. 5 is a schematic structural diagram of a terminal 200 in a specific example, and as shown in fig. 4, the terminal 200 includes: a second baseband processing unit 210, a second modem unit 220, a second rf transceiver unit 230, a first rf power amplifier 240, a second rf front-end component 250, and a first APT/ET unit 260. The second baseband processing unit 210 of the terminal 200 is connected to the second modem unit 220, the second modem unit 220 is connected to the second rf transceiver unit 230, the second rf transceiver unit 230 provides an input signal for the first rf power amplifier 240, and the signal amplified by the first rf power amplifier 240 is transmitted through the second rf front-end component 250 and the antenna in sequence. The second modem unit 220 is further connected to a first APT/ET unit 260 (it should be noted that, the first APT/ET unit 260 also includes output power adjustment) for supplying power to the first rf power amplifier 240, and when receiving the first clutter adjustment instruction sent by the base station 100, the first APT/ET unit 260 performs the adjustment.

For example, fig. 6 is a flowchart illustrating the operation of the terminal 200 after receiving the first clutter adjustment command sent by the base station 100, as shown in fig. 6, which may include the following steps:

s301, the terminal receives a first clutter adjustment command sent by the base station, that is, the terminal 200 receives a command, such as a first ET mode command, from the base station 100 to the terminal 200 to improve its own clutter.

S302, the terminal adjusts the power supply mode of the first radio frequency power amplifier to be the first ET mode through the second APT/ET unit, and sends the first radio frequency signal to the base station after the power supply mode is changed, and the base station determines whether the clutter of the terminal is normal again.

Specifically, when the base station 100 detects that a clutter signal in a radio frequency signal sent by the terminal 200 does not satisfy a first preset clutter standard, a first clutter adjustment instruction is sent to the terminal 200, and considering that power adjustment may affect the strength of the radio frequency signal, a power supply mode of the first radio frequency power amplifier is preferentially adjusted, for example, the first clutter adjustment instruction is a first ET mode instruction, at this time, the terminal 200 adjusts the power supply mode of the first radio frequency power amplifier to be a first ET mode through the second APT/ET unit, and after the power supply mode is changed, the first radio frequency signal is sent to the base station, and the base station 100 determines whether the clutter of the terminal 200 is normal again.

S303, the base station determines whether a clutter signal in the first radio frequency signal sent by the terminal meets a first preset clutter standard, if so, executes step S304, otherwise, sends the first clutter adjustment instruction to the terminal again, such as the first APT mode instruction, and at this time, the terminal 200 executes step S305.

S304, the terminal is informed that the clutter is normal, namely the clutter meets the first preset clutter standard.

S305, the terminal adjusts the power supply mode of the first radio frequency power amplifier to be the first APT mode through the second APT/ET unit, and sends the first radio frequency signal to the base station after the power supply mode is changed, and the base station determines whether the clutter of the terminal is normal again.

Specifically, after the first power supply mode adjustment, when the clutter signal in the radio frequency signal sent by the terminal 200 still does not meet the first preset clutter requirement, the power supply mode of the terminal 200 is continuously changed, for example, the first clutter adjustment instruction is a first APT mode instruction, at this time, the terminal 200 adjusts the power supply mode of the first frequency power amplifier to be the first APT mode through the second APT/ET unit, and after the power supply mode is changed, the first radio frequency signal is sent to the base station 100, and the base station 100 determines whether the clutter of the terminal 200 is normal again.

S306, the base station judges whether the clutter signal in the first radio frequency signal sent by the terminal meets a first preset clutter standard, if the clutter signal meets the first preset clutter standard, the step S307 is executed, otherwise, the first clutter adjusting instruction is sent to the terminal again, and if the first clutter adjusting instruction is the first maximum voltage mode instruction, the terminal executes the step S308.

S307, the base station informs the terminal that the clutter signals are normal, namely the clutter meets the first preset clutter standard.

S308, the terminal adjusts the power supply mode of the first radio frequency power amplifier to be a first maximum voltage mode through the second APT/ET unit, and sends a first radio frequency signal to the base station after the power supply mode is changed, and the base station determines whether the clutter of the terminal is normal again.

Specifically, after the second power supply mode adjustment, when the clutter signal in the radio frequency signal sent by the terminal 200 still does not meet the first preset clutter requirement, the power supply mode of the terminal 200 is continuously changed, for example, the first clutter adjustment instruction is a first maximum voltage mode instruction, at this time, the terminal 200 adjusts the power supply mode of the first radio frequency power amplifier to be the first maximum voltage mode through the second APT/ET unit, and after the power supply mode is changed, the first radio frequency signal is sent to the base station 100, and the base station 100 determines whether the clutter of the terminal 200 is normal again. It should be noted that the maximum voltage refers to the smaller value of the maximum voltage that the first rf power amplifier can withstand and the maximum voltage that the first APT/ET unit can provide.

S309, the base station judges whether the clutter signal in the first radio frequency signal sent by the terminal meets a first preset clutter standard, if the clutter signal meets the first preset clutter standard, the step S310 is executed, otherwise, the first clutter adjusting instruction is sent to the terminal again, and if the first clutter adjusting instruction is not sent, the step S311 is executed by the terminal.

S310, the base station notifies the terminal that the clutter signals are normal, that is, the clutter signals meet the first preset clutter standard.

S311, the terminal adjusts the output power of the first radio frequency power amplifier, and sends the first radio frequency signal to the base station after the output power is changed, and the base station determines whether the clutter of the terminal is normal again.

Specifically, after all the first power supply modes are adjusted, if the clutter signals in the radio frequency signals sent by the terminal 100 still do not meet the first preset clutter requirement, the output power of the terminal 200 is changed, that is, the first clutter adjustment instruction is the first power adjustment instruction, at this time, the terminal 100 reduces the output power of the first radio frequency signals and sends the first radio frequency signals to the base station 100, the base station 100 determines whether the clutter of the terminal 200 is normal again, if not, the output power is reduced continuously, the process is repeated until the clutter signals in the radio frequency signals sent by the terminal 200 meet the first preset clutter standard, at this time, the current power is recorded, and the power of the radio frequency signals sent by the terminal 200 is required to be less than or equal to the current power.

It should be noted that, the order of the first ET mode instruction, the first APT mode instruction, and the first maximum voltage mode instruction may be interchanged, that is, there is no order, and the specific description is not limited herein.

Therefore, by setting the priority of the first power supply adjusting instruction to be higher than that of the first power adjusting instruction, when the terminal changes the power supply mode of the terminal and cannot meet the clutter requirement of the communication system, the terminal is informed to execute the first power reduction instruction. Through the repeated interaction of the base station and the terminal, the clutter signals of the terminal finally meet the requirements, the transmission power of the terminal is not limited to the maximum extent, and the communication between the base station and the terminal is not greatly influenced under the condition of solving the clutter problem to the maximum extent.

In some embodiments, the first remote radio unit 110 is further configured to receive a second radio signal sent by itself, and acquire a clutter signal in the second radio signal; the first baseband unit 120 is further configured to control the first radio remote unit 110 to stop operating when the clutter signals in the second radio frequency signal do not meet the second preset clutter standard. It should be noted that the second preset clutter criterion includes a criterion set for the clutter signal, and may specifically be a preset reasonable range.

Specifically, in recent years, a beamforming technology is widely applied to a radio remote unit and millimeter waves of a base station, so that clutter and harmonics are multiplied in a certain direction, which may cause that clutter and harmonics exist in a radio frequency signal transmitted by the base station and interfere with a communication system, and therefore, in this application, the base station 100 detects a clutter signal included in a radio frequency signal sent by itself in addition to a clutter signal of a radio frequency signal from the terminal 200, and controls the first radio remote unit 110 to stop working when the clutter signal does not meet a second preset clutter standard.

Specifically, referring to fig. 3, the first rf front-end module 111 sends a second rf signal, the second rf signal is coupled to the first spectrum analysis unit 113 through the coupling output end, the first spectrum analysis unit 113 analyzes the clutter signal and determines whether the second predetermined clutter standard is satisfied, and when the clutter signal in the second rf signal does not satisfy the second predetermined clutter standard, the first baseband processing unit 121 controls the first remote rf unit 110 to stop working.

Specifically, as shown in fig. 7, the clutter detection and suppression of the radio frequency signal of the base station 100 may include the following steps:

s501, the first radio frequency front end component sends out a second radio frequency signal.

S502, the first rf front-end module couples and outputs the second rf signal to the first spectrum analysis unit.

S503, the first spectrum analysis unit carries out spectrum analysis on the detected radio frequency signal to distinguish a useful signal and a clutter signal.

S504, the first spectrum analysis unit determines whether the clutter signal meets a second preset clutter standard, if the clutter signal meets the second preset clutter standard, the step S505 is executed, otherwise, the step S506 is executed.

And S505, informing the first baseband processing unit that the clutter signals are normal.

S506, the first baseband processing unit is notified that the clutter signal is abnormal, and requests processing, for example, the first baseband processing unit 121 may control the radio remote unit 110 to stop working.

In some embodiments, the first remote rf unit 110 includes a plurality of remote rf units, and the first baseband unit 120 is further configured to transfer the terminal 200 on the first remote rf unit 110 that is out of operation to the first remote rf unit 110 that is not out of operation. That is to say, when the base station includes a plurality of first remote radio units 110, when the radio signal sent by a certain first remote radio unit 110 does not meet the requirement, the first remote radio unit 110 is controlled to stop working, and the terminal 200 on the first remote radio unit 110 is transferred to other first remote radio units 110, so as to ensure that the terminal 200 can continue to communicate with the base station 100 without affecting the use of the terminal 200.

Optionally, the first baseband unit 120 is further configured to obtain a serial number of the terminal 200 whose clutter signal does not satisfy the first preset clutter standard and a serial number of the first radio remote unit 110 whose clutter signal does not satisfy the second preset clutter standard, and manage and control according to the serial number of the terminal 200 and the serial number of the first radio remote unit 110. For example, the manufacturers of the terminals and the base stations with the clutter signals exceeding the standard are known through the IMEI (International Mobile Equipment Identity) number of each terminal 200 or the serial number of the first remote radio unit 110 of the base station 100, and then the number of the terminals with the clutter signals exceeding the standard and the number of the first remote radio units 110 of the base station 100 of each terminal manufacturer and each base station manufacturer are counted, so that both the terminal 200 and the base station 100 in the network can be effectively supervised. In specific implementation, a real-time database of clutter monitoring of each terminal manufacturer and base station manufacturer can be established.

In summary, a terminal clutter signal detection mechanism is arranged on the base station side, and when the clutter signal does not meet the requirement, a clutter adjustment instruction is sent to the terminal, the terminal adjusts the power supply mode or output power of the terminal according to the instruction, and through continuous clutter detection interaction between the terminal and the base station, the clutter test requirement of the terminal is finally within the limit range, and the transmitting power of the terminal can be furthest not limited, so that the communication between the base station and the terminal is furthest not influenced greatly under the condition of solving the clutter problem. In addition, a self clutter signal detection mechanism is arranged on the base station side, and can detect and process self clutter signals, reduce clutter in a communication system and reduce radio frequency noise in space.

In some embodiments, a terminal 400 is further provided, and referring to fig. 8, the terminal 400 includes a first rf processing unit 410 and a second baseband unit 420, where the first rf processing unit 410 is configured to receive a third rf signal transmitted by the base station 300 and acquire a clutter signal in the third rf signal; the second baseband unit 420 is configured to send a second clutter adjustment instruction to the base station 300 when the clutter signals in the third radio frequency signal do not meet the third preset clutter standard, so that the base station 300 adjusts itself according to the second clutter adjustment instruction until the clutter signals in the third radio frequency signal meet the third preset clutter standard. It should be noted that the third preset clutter criterion includes a criterion set for the clutter signal, and may specifically be a preset reasonable range.

Specifically, referring to fig. 8, the first rf processing unit 410 in the terminal 400 may communicate with the base station 300 through an antenna, and receive a third rf signal transmitted by the base station 300, where the third rf signal may be any rf signal. The first rf processing unit 410 obtains the clutter signal in the third rf signal after receiving the third rf signal, determines whether the clutter signal meets a third predetermined clutter standard, and sends the determination result to the second baseband unit 420. If the clutter signal does not meet the third predetermined clutter standard, the second baseband unit 420 sends a second clutter adjustment command to the first rf processing unit 410, which is sent by the first rf processing unit 410 to the base station 300 via the antenna. After receiving the second clutter adjustment instruction, the base station 300 adjusts itself according to the second clutter adjustment instruction, and after adjustment, sends the second radio frequency signal to the first radio frequency processing unit 410 again, and so on, until the clutter signal in the second radio frequency signal sent by the base station 300 meets the third preset clutter standard.

Further, in a specific example, as shown in fig. 9, the first rf processing unit 410 may include: a third rf transceiver unit 411, a third rf power amplifier 412, a third rf front-end component 413, a second APT/ET unit 414, and a second spectrum analysis unit 415. The antenna is connected to the third rf front-end component 413, a main path of the third rf front-end component 413 is connected to the third rf power amplifier 412 and the third rf transceiving unit 411, a coupling output end is connected to the second spectrum analysis unit 415, the third rf front-end component 413 receives the second rf signal of the base station 300 through the antenna and outputs the second rf signal to the second spectrum analysis unit 415 through coupling, and the second spectrum analysis unit 415 performs spectrum analysis on the detected second rf signal to distinguish a useful signal from a clutter signal, and determines whether the clutter signal meets a third predetermined clutter standard, and sends a determination result to the second baseband unit 420.

The second baseband unit 420 may include: a third baseband processing unit 421 and a third modem unit 422. When the third baseband processing unit 421 receives the result of the determination sent by the second spectrum analyzing unit 415 that the clutter signals do not satisfy the third predetermined clutter standard, the third baseband processing unit 421 sends a second clutter adjusting instruction to the third modem unit 422, and sends the second clutter adjusting instruction to the base station 300 through the third radio frequency transceiving unit 411, the third radio frequency power amplifier 412, the third radio frequency front end component 413, and the antenna in sequence, so that the base station 300 adjusts itself according to the second clutter adjusting instruction until the clutter signals in the third radio frequency signals satisfy the third predetermined clutter standard.

Specifically, as shown in fig. 10, the detection and suppression of the radio frequency signal transmitted by the base station 300 by the terminal 400 may include the following steps:

s701, an antenna in the first rf processing unit receives a third rf signal sent by the base station.

S702, the third rf front-end component couples and outputs the received third rf signal to the second spectrum analysis unit.

And S703, the second spectrum analysis unit performs spectrum analysis on the coupled third radio frequency signal to distinguish the useful signal from the clutter signal.

S704, the second spectrum analysis unit determines whether the clutter signal meets a third preset clutter standard, that is, whether the clutter signal is within a reasonable range, if the clutter signal does not meet the third preset clutter standard, then step S705 is executed, otherwise step S706 is executed.

S705, the second baseband unit informs the base station that the clutter signals are normal.

S706, the second baseband unit sends a second clutter adjusting instruction to the base station according to the clutter signal so that the base station adjusts itself, and sends out a third radio frequency signal again after adjustment so as to repeatedly interact the terminal and the base station until the third radio frequency signal sent by the base station meets a third preset clutter standard.

In some embodiments, the second spur adjustment instruction comprises at least one of a second power supply mode adjustment instruction and a second output power adjustment instruction for a second radio frequency power amplifier in the base station 300, and the second power supply mode adjustment instruction has a higher priority than the second output power adjustment instruction. Reference is made to the foregoing description, and no further description is provided herein.

In some embodiments, the second power supply mode adjustment instruction comprises at least one of a second ET mode instruction, a second APT mode instruction, and a second maximum voltage mode instruction; the second output power adjustment command comprises a second power down command. Reference is made to the foregoing description, and no further description is provided herein.

As a specific example, as shown in fig. 11, the base station 300 may include: a second remote rf unit 310 and a third baseband unit 320, wherein the second remote rf unit 310 may include: a fourth rf front-end component 311, a fourth rf transceiving unit 312, a third spectrum analysis unit 313, a second rf power amplifier 314, and a third APT/ET unit 315, wherein the third baseband unit 320 may include: a fourth baseband processing unit 321 and a fourth modem unit 322. The fourth baseband processing unit 321 of the base station 300 is connected to the fourth modulation/demodulation unit 322, the fourth modulation/demodulation unit 322 is connected to the fourth rf transceiver unit 312, the fourth rf transceiver unit 312 provides an input signal for the second rf power amplifier 314, and the signal amplified by the second rf power amplifier 314 passes through the fourth rf front-end component 311 and the antenna in sequence and is transmitted out. The fourth modem unit 322 is further connected to a third APT/ET unit 315 (it should be noted that, the third APT/ET unit 315 also includes output power adjustment) for supplying power to the second rf power amplifier 314, and when receiving the second spur adjustment instruction sent by the terminal 400, the third APT/ET unit 315 performs adjustment.

Further, the second baseband unit 420 is configured to perform a first-stage adjustment on the third rf signal; taking any one of the second power supply mode adjusting instructions as a current adjusting instruction; the second baseband unit 420 sends a current adjustment instruction to the base station 300, so that the base station 300 adjusts the power supply mode of the second rf power amplifier, and sends a currently adjusted third rf signal to the terminal 400; when the clutter signal in the currently adjusted third radio frequency signal does not meet a third preset clutter standard, taking any remaining adjusting instruction in the second power supply mode adjusting instruction as a current adjusting instruction; returning to the step of sending the current adjustment instruction to the base station 300 by the second baseband unit 420 until the first-stage adjustment stop condition is satisfied, and obtaining a third radio frequency signal after the first-stage adjustment.

Further, the second baseband unit 420 is further configured to perform a second stage adjustment on the third rf signal; taking the third radio frequency signal adjusted in the first stage as a current radio frequency signal; when the clutter signal of the current radio frequency signal does not meet a third preset clutter standard, taking the second power reduction instruction as a current adjustment instruction; the second baseband unit 420 sends a current adjustment instruction to the base station 300, so that the base station 300 adjusts the output power of the second rf power amplifier and sends the adjusted current rf signal to the terminal 400; and returning to the step of taking the second power reduction instruction as the current adjustment instruction when the clutter signal of the current radio frequency signal does not meet the third preset clutter standard until the clutter signal in the current radio frequency signal meets the third preset clutter standard, and outputting the third radio frequency signal after the second-stage adjustment.

For example, fig. 12 is a flowchart illustrating the operation of the base station 300 after receiving the second clutter adjustment command sent by the terminal 400, as shown in fig. 12, which includes the following steps:

s801, the base station receives a second clutter adjustment command sent by the terminal, that is, the base station 300 receives a command, such as a second ET mode command, that the terminal 400 requests the terminal to improve its own clutter.

S802, the base station adjusts the power supply mode of the second radio frequency power amplifier to be a second ET mode through the third APT/ET unit, and after the power supply mode is changed, the base station sends a third radio frequency signal to the terminal, and the terminal determines whether the clutter of the base station is normal again.

Specifically, when the terminal 400 detects that the clutter signal in the radio frequency signal sent by the base station 300 does not satisfy the third preset clutter standard, the terminal 400 sends the second clutter adjustment instruction to the base station, and considering that the power adjustment may affect the intensity of the radio frequency signal, the power supply mode of the second radio frequency power amplifier is preferentially adjusted, for example, the second clutter adjustment instruction is the second ET mode instruction, at this time, the base station adjusts the power supply mode of the second radio frequency power amplifier to the second ET mode through the third APT/ET unit, and after the power supply mode is changed, sends the second radio frequency signal to the terminal 400, and the terminal 400 determines whether the clutter of the base station 300 is normal again.

S803, the terminal determines whether the clutter signal in the second radio frequency signal sent by the base station meets a third preset clutter standard, if so, executes step S804, otherwise, sends the second clutter adjusting instruction to the base station again, such as the second APT mode instruction, and then the base station executes step S305.

S804, the base station is informed that the clutter is normal, namely the clutter meets a third preset clutter standard.

S805, the base station adjusts the power supply mode of the second radio frequency power amplifier to be the second APT mode through the third APT/ET unit, and after the power supply mode is changed, the base station sends a third radio frequency signal to the terminal, and the terminal determines whether the clutter of the base station is normal again.

Specifically, after the first power supply mode adjustment, when the clutter signal in the radio frequency signal sent by the base station still does not meet the third preset clutter requirement, the power supply mode of the base station 300 is continuously changed, for example, the second clutter adjustment instruction is a second APT mode instruction, at this time, the base station 400 adjusts the power supply mode of the second radio frequency power amplifier to be a second APT mode through a third APT/ET unit, and after the power supply mode is changed, the second radio frequency signal is sent to the terminal 400, and the terminal 300 determines whether the clutter of the base station 400 is normal again.

S806, the terminal determines whether the clutter signal in the second RF signal sent by the base station meets a third preset clutter standard, if the clutter signal meets the third preset clutter standard, the step S807 is executed, otherwise, the second clutter adjusting instruction is sent to the base station again, and if the second clutter adjusting instruction is sent to the base station again, the base station executes the step S808.

S807, the terminal informs the base station that the clutter signals are normal, namely the clutter meets the preset third clutter standard.

And S808, the base station adjusts the power supply mode of the second radio frequency power amplifier to be a second maximum voltage mode through the third APT/ET unit, and after the power supply mode is changed, the base station sends a third radio frequency signal to the terminal, and the terminal determines whether the clutter of the base station is normal again.

Specifically, after the second power supply mode is adjusted, when the clutter signal in the radio frequency signal sent by the base station 300 still does not meet the third preset clutter requirement, the power supply mode of the base station 300 is continuously changed, for example, the second clutter adjustment instruction is a second maximum voltage mode instruction, at this time, the base station 300 adjusts the power supply mode of the second radio frequency power amplifier to be the second maximum voltage mode through the third APT/ET unit, and after the power supply mode is changed, the second radio frequency signal is sent to the terminal 400, and the terminal 400 determines whether the clutter of the base station 300 is normal again. It should be noted that the maximum voltage refers to the smaller value of the maximum voltage that the second rf power amplifier can withstand and the maximum voltage that the third APT/ET unit can provide.

S809, the terminal determines whether the clutter signal in the third radio frequency signal sent by the base station meets a third preset clutter standard, if the clutter signal meets the third preset clutter standard, then step S810 is executed, otherwise, the second clutter adjusting instruction is sent to the base station again, and if the second power adjusting instruction is sent, then the base station executes step S811.

And S810, the terminal informs the base station that the clutter signals are normal, namely the clutter signals meet a third preset clutter standard.

S811, the base station adjusts the output power of the second RF power amplifier, and after the output power is changed, the base station sends a third RF signal to the terminal, and the terminal determines whether the clutter of the base station is normal again.

Specifically, after all power supply modes are adjusted, if the clutter signals in the radio frequency signals sent by the base station 300 still do not meet the third preset clutter requirement, the output power of the base station 300 is changed, that is, the second clutter adjustment instruction is the second power adjustment instruction, at this time, the base station 300 reduces the output power of the third radio frequency signals and sends the third radio frequency signals to the terminal 400, the terminal 400 determines whether the clutter of the base station 300 is normal again, if not, the output power is reduced continuously, the process is repeated until the clutter signals in the radio frequency signals sent by the base station 300 meet the third preset clutter standard, at this time, the current power is recorded, and the power of the radio frequency signals sent by the base station is required to be less than or equal to the current power.

Therefore, by setting the priority of the second power supply adjusting instruction to be higher than that of the second power adjusting instruction, when the base station changes the second power supply mode of the base station and cannot meet the clutter requirement of the communication system, the base station is informed to execute the second power reduction instruction. Through the repeated interaction of the base station and the terminal, the clutter signals of the base station finally meet the requirements, the transmission power of the base station is not limited to the maximum extent, and the communication between the base station and the terminal is not greatly influenced under the condition of solving the clutter problem to the maximum extent. It should be noted that, the order of the second ET mode command, the second APT mode command, and the second maximum voltage mode command may be interchanged, and is not limited herein.

In some embodiments, the first rf processing unit 410 is further configured to receive a fourth rf signal sent by itself, and acquire a clutter signal in the fourth rf signal; the second baseband unit 420 is further configured to control the first rf processing unit 410 to stop working when the spurious signal in the first rf signal does not satisfy the fourth predetermined spurious standard. It will be appreciated that the fourth predetermined clutter criterion comprises a criterion set for clutter signals and may specifically be a predetermined reasonable range.

Specifically, the terminal 400 may detect a clutter signal included in the radio frequency signal transmitted by the terminal 400, in addition to the clutter signal of the radio frequency signal from the base station 300, and control the first radio frequency processing unit 410 to stop working when the clutter signal does not satisfy the fourth preset clutter standard.

Specifically, referring to fig. 9, the third rf front-end module 413 sends a fourth rf signal, the fourth rf signal is coupled to the second spectrum analysis unit 415 through the coupling output terminal, the second spectrum analysis unit 415 analyzes the clutter signal and determines whether the fourth predetermined clutter standard is satisfied, and when the clutter signal in the first rf signal does not satisfy the fourth predetermined clutter standard, the third baseband processing unit 421 controls the first rf processing unit 410 to stop working.

Specifically, as shown in fig. 13, the clutter detection and suppression of the terminal 400 on its own radio frequency signal may include the following steps:

s901, the third rf front-end component sends out a fourth rf signal.

And S902, the third radio frequency front end component couples and outputs the fourth radio frequency signal to the second spectrum analysis unit.

And S903, the second spectrum analysis unit performs spectrum analysis on the detected radio frequency signal to distinguish a useful signal and a clutter signal.

S904, the second spectrum analysis unit determines whether the clutter signal meets a fourth preset clutter standard, if so, performs step S905, otherwise performs step S906.

S905, notify the third baseband processing unit that the clutter signals are normal.

S906, the third baseband processing unit is notified that the spurious signal is abnormal, and requests processing, for example, the third baseband processing unit 420 may control the first rf processing unit 410 to stop working.

In summary, a base station clutter signal detection mechanism is arranged on the terminal side, and when the clutter signal does not meet the requirement, a clutter adjustment instruction is sent to the base station, the base station adjusts the power supply mode or output power of the base station according to the instruction, and finally the clutter test requirement of the base station is in a limit range through continuous clutter detection interaction between the terminal and the base station, and the transmitting power of the base station can be furthest not limited, so that the communication between the base station and the terminal is furthest not influenced greatly under the condition of solving the clutter problem. In addition, the terminal side is also provided with a self clutter signal detection mechanism which can detect and process the self clutter signals, reduce clutter in a communication system and reduce radio frequency noise in space.

In some embodiments, there is also provided a method for clutter suppression of a radio frequency signal, applied to a first communication device, as shown in fig. 14, the method for clutter suppression of a radio frequency signal may include the steps of:

step S1001, receives a fifth radio frequency signal sent by the second communication device.

In step S1002, a clutter signal in the fifth radio frequency signal is obtained.

Step S1003, when the clutter signal in the fifth radio frequency signal does not satisfy the fifth preset clutter standard, sending a third clutter adjustment instruction to the second communication device, so that the second communication device adjusts itself according to the third clutter adjustment instruction until the clutter signal in the fifth radio frequency signal satisfies the fifth preset clutter standard. The fifth preset clutter standard includes a standard set for the clutter signal, and may specifically be a preset reasonable range.

In some embodiments, the third spur adjustment instruction comprises at least one of a third power supply mode adjustment instruction and a third output power adjustment instruction of a third radio frequency power amplifier in the second communication device, and the third power supply mode adjustment instruction has a higher priority than the third output power adjustment instruction.

In some embodiments, the third power supply mode adjustment instruction includes at least one of a third ET mode instruction, a third APT mode instruction, and a third maximum voltage mode instruction; the third output power adjustment command comprises a third power down command.

In some embodiments, sending a third spur adjustment instruction to the second communication device to cause the second communication device to adjust itself according to the third spur adjustment instruction until the spur signal in the fifth radio frequency signal meets a fifth preset spur criterion includes: taking any one of the third power supply mode adjustment instructions as a current adjustment instruction; sending a current adjusting instruction to the second communication equipment so that the second communication equipment adjusts the power supply mode of the third radio frequency power amplifier, and sending a currently adjusted fifth radio frequency signal to the first communication equipment; when the clutter signal in the currently adjusted fifth radio frequency signal does not meet a fifth preset clutter standard, taking any remaining adjusting instruction in the third power supply mode adjusting instruction as a current adjusting instruction; and returning to the step of sending the current adjusting instruction to the second communication equipment until the first-stage adjusting stop condition is met, and obtaining a fifth radio-frequency signal after the first-stage adjustment.

In some embodiments, sending a third spur adjustment instruction to the second communication device to cause the second communication device to adjust itself according to the third spur adjustment instruction until the spur signal in the fifth radio frequency signal meets a fifth preset spur criterion further comprises: taking the fifth radio frequency signal adjusted in the first stage as a current radio frequency signal; when the clutter signal of the current radio frequency signal does not meet the fifth preset clutter standard, taking the third power reduction instruction as a current adjustment instruction; sending a current adjusting instruction to the second communication equipment so that the second communication equipment adjusts the output power of the third radio frequency power amplifier and sends the adjusted current radio frequency signal to the first communication equipment; and returning to the step of taking the third power reduction instruction as the current adjustment instruction when the clutter signal of the current radio frequency signal does not meet the fifth preset clutter standard until the clutter signal in the current radio frequency signal meets the fifth preset clutter standard, and outputting the fifth radio frequency signal after the second-stage adjustment.

It should be noted that, the first communication device in the present application may be a base station, and the second communication device is a terminal; or, the first communication device is a terminal, and the second communication device is a base station.

In some embodiments, when the first communication device is a base station and the base station comprises a plurality of first remote radio units, the method further comprises: receiving a sixth radio frequency signal sent by the first remote radio unit; acquiring a clutter signal in the sixth radio frequency signal; and when the clutter signal in the sixth radio frequency signal does not meet the sixth preset clutter standard, controlling the first radio remote unit to stop working, and transferring the second communication equipment on the first radio remote unit which stops working to other first radio remote units which do not stop working.

In some embodiments, when the first communication device is a terminal and the terminal comprises a first radio frequency processing unit, the method further comprises: receiving a seventh radio frequency signal sent by the first radio frequency processing unit; acquiring a clutter signal in the seventh radio frequency signal; and when the clutter signal in the seventh radio frequency signal does not meet the seventh preset clutter standard, controlling the first radio frequency processing unit to stop working.

In some embodiments, the method further comprises: acquiring a serial number of second communication equipment of which the clutter signal does not meet a fifth preset clutter standard, a serial number of a first radio frequency remote unit of which the clutter signal does not meet a sixth preset clutter standard and a serial number of a first radio frequency processing unit of which the clutter signal does not meet a seventh preset clutter standard, and managing and controlling according to the serial number of the second communication equipment, the serial number of the first radio frequency remote unit and the serial number of the first radio frequency processing unit.

It should be noted that, when the first communication device is a base station, taking the base station shown in fig. 2 as an example to which the method is applied, specific details refer to the description about the base station, and are not described herein again. When the first communication device is a terminal, taking the terminal shown in fig. 9 as an example to which the method is applied, the specific details refer to the description about the terminal, and are not described herein again.

According to the clutter suppression method for the radio frequency signals, the clutter signals of the radio frequency signals sent by the terminal or the base station are obtained at the base station side or the terminal side, and the clutter adjustment instruction is sent to the terminal or the base station when the clutter signals in the radio frequency signals do not meet the preset clutter standard, so that the terminal or the base station adjusts the clutter signals according to the clutter adjustment instruction until the clutter signals in the radio frequency signals meet the preset clutter standard.

In some embodiments, as shown in fig. 15, there is provided a radio frequency signal clutter suppression apparatus for use in a first communication device, as shown in fig. 15, the radio frequency signal clutter suppression apparatus may include: a signal transceiving module 510, a clutter acquisition module 520, and a clutter suppression module 530.

The signal transceiver module 510 is configured to receive a fifth radio frequency signal sent by the second communication device; the clutter obtaining module 520 is configured to obtain a clutter signal in the fifth radio frequency signal; the clutter suppression module 530 is configured to send a third clutter adjustment instruction to the second communication device through the signal transceiver module 510 when the clutter signal in the fifth radio frequency signal does not satisfy the fifth preset clutter standard, so that the second communication device adjusts itself according to the third clutter adjustment instruction until the clutter signal in the fifth radio frequency signal satisfies the fifth preset clutter standard.

In some embodiments, the clutter suppression module 530 is specifically configured to: taking any one of the third power supply mode adjustment instructions as a current adjustment instruction; sending a current adjusting instruction to the second communication equipment so that the second communication equipment adjusts the power supply mode of the third radio frequency power amplifier, and sending a currently adjusted fifth radio frequency signal to the first communication equipment; when the clutter signal in the currently adjusted fifth radio frequency signal does not meet a fifth preset clutter standard, taking any remaining adjusting instruction in the third power supply mode adjusting instruction as a current adjusting instruction; and returning to the step of sending the current adjusting instruction to the second communication equipment until the first-stage adjusting stop condition is met, and obtaining a fifth radio-frequency signal after the first-stage adjustment.

In some embodiments, the clutter suppression module 530 is further configured to: taking the fifth radio frequency signal adjusted in the first stage as a current radio frequency signal; when the clutter signal of the current radio frequency signal does not meet the fifth preset clutter standard, taking the third power reduction instruction as a current adjustment instruction; sending a current adjusting instruction to the second communication equipment so that the second communication equipment adjusts the output power of the third radio frequency power amplifier and sends the adjusted current radio frequency signal to the first communication equipment; and returning to the step of taking the third power reduction instruction as the current adjustment instruction when the clutter signal of the current radio frequency signal does not meet the fifth preset clutter standard until the clutter signal in the current radio frequency signal meets the fifth preset clutter standard, and outputting the fifth radio frequency signal after the second-stage adjustment.

In some embodiments, when the first communication device is a base station and the base station comprises a plurality of first remote radio units, the clutter acquisition module 520 is further configured to: receiving a sixth radio frequency signal sent by the first radio frequency remote unit, and acquiring a clutter signal in the sixth radio frequency signal; the clutter suppression module 530 is further configured to: and when the clutter signal in the sixth radio frequency signal does not meet the sixth preset clutter standard, controlling the first radio remote unit to stop working, and transferring the second communication equipment on the first radio remote unit which stops working to other first radio remote units which do not stop working.

In some embodiments, when the first communication device is a terminal and the terminal includes a first radio frequency processing unit, the clutter acquisition module 520 is further to: receiving a seventh radio frequency signal sent by the first radio frequency processing unit, and acquiring a clutter signal in the seventh radio frequency signal; the clutter suppression module 530 is further configured to: and when the clutter signal in the seventh radio frequency signal does not meet the seventh preset clutter standard, controlling the first radio frequency processing unit to stop working.

In some embodiments, the clutter suppression module 530 is further configured to: acquiring a serial number of second communication equipment of which the clutter signal does not meet a fifth preset clutter standard, a serial number of a first radio frequency remote unit of which the clutter signal does not meet a sixth preset clutter standard and a serial number of a first radio frequency processing unit of which the clutter signal does not meet a seventh preset clutter standard, and managing and controlling according to the serial number of the second communication equipment, the serial number of the first radio frequency remote unit and the serial number of the first radio frequency processing unit.

It should be noted that, when the first communication device is a base station, taking the example that the base station shown in fig. 2 is applied to the apparatus, specific details refer to the description about the base station, and are not repeated herein. When the first communication device is a terminal, taking the terminal shown in fig. 9 as an example of the application of the apparatus, specific details refer to the above description about the terminal, and are not described herein again.

According to the clutter suppression device for the radio frequency signals, the clutter signals of the radio frequency signals sent by the terminal or the base station are obtained at the base station side or the terminal side, and the clutter adjustment instruction is sent to the terminal or the base station when the clutter signals in the radio frequency signals do not meet the preset clutter standard, so that the terminal or the base station adjusts the clutter suppression device according to the clutter adjustment instruction until the clutter signals in the radio frequency signals meet the preset clutter standard.

In some embodiments, embodiments of the present invention also provide a computer device, which may be a terminal, as shown in fig. 16, comprising a processor 10 and a memory 20. Processor 40 is operative to provide, among other things, computational and control capabilities. The memory 20 includes a nonvolatile storage medium 21 and an internal memory 22. The nonvolatile storage medium 21 stores an operating system 211 and a computer program 212. The internal memory 22 provides an environment for the operation of the operating system 211 and the computer program 212 in the nonvolatile storage medium 21. The computer program 212 is executed by the processor 10 to implement the steps of a method of clutter suppression of radio frequency signals as described above.

Those skilled in the art will appreciate that the architecture shown in fig. 16 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.

According to the computer equipment provided by the embodiment of the invention, the clutter suppression method for the radio frequency signals realizes the limitation on the clutter in the communication system, so that the clutter in the communication system can be effectively suppressed, and the interference of the clutter on the radio frequency signals in the communication system is reduced.

In some embodiments, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for suppressing clutter of radio frequency signals, which is described above, and thus, detailed descriptions thereof are omitted here.

According to the computer-readable storage medium of the embodiment of the invention, the clutter suppression method of the radio frequency signal realizes the limitation of the clutter in the communication system, thereby effectively suppressing the clutter in the communication system and reducing the interference of the clutter on the radio frequency signal in the communication system.

It should be understood that, although the steps in the above-described flowcharts are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in the flowchart may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A base station, comprising:

the first baseband unit is used for sending a first clutter adjusting instruction to the terminal when the clutter signals in the first radio frequency signal do not meet a first preset clutter standard, so that the terminal adjusts the terminal according to the first clutter adjusting instruction until the clutter signals in the first radio frequency signal meet the first preset clutter standard.

2. The base station of claim 1, wherein the first spur adjustment command comprises at least one of a first power mode adjustment command and a first output power adjustment command for a first rf power amplifier in the terminal, and wherein the first power mode adjustment command has a higher priority than the first output power adjustment command.

3. The base station of claim 2, wherein the first power mode adjustment command comprises at least one of a first ET mode command, a first APT mode command, and a first maximum voltage mode command; the first output power adjustment instruction comprises a first power down instruction.

4. The base station of claim 3, wherein the first baseband unit is configured to perform a first stage adjustment on the first RF signal;

the first baseband unit sends the current adjustment instruction to the terminal so that the terminal adjusts the power supply mode of the first radio frequency power amplifier and sends a first radio frequency signal after current adjustment to the base station;

when the clutter signal in the currently adjusted first radio frequency signal does not meet the first preset clutter standard, taking any remaining adjusting instruction in the first power supply mode adjusting instruction as a current adjusting instruction;

and returning to the step of sending the current adjustment instruction to the terminal by the first baseband unit until a first-stage adjustment stopping condition is met, and obtaining a first radio-frequency signal after first-stage adjustment.

5. The base station of claim 4, wherein the first baseband unit is further configured to perform a second stage adjustment on the first RF signal;

when the clutter signal of the current radio frequency signal does not meet the first preset clutter standard, taking a first power reduction instruction as a current adjustment instruction;

the first baseband unit sends the current adjustment instruction to the terminal so that the terminal adjusts the output power of the first radio frequency power amplifier and sends the adjusted current radio frequency signal to the base station;

and returning to the step of taking the first power reduction instruction as the current adjustment instruction when the clutter signal of the current radio frequency signal does not meet the first preset clutter standard until the clutter signal in the current radio frequency signal meets the first preset clutter standard, and outputting the first radio frequency signal after the second-stage adjustment.

6. Base station according to any of claims 1-5,

the first remote radio unit is further used for receiving a second radio frequency signal sent by the first remote radio unit and acquiring a clutter signal in the second radio frequency signal;

the first baseband unit is further configured to control the first radio remote unit to stop working when the clutter signal in the second radio frequency signal does not meet a second preset clutter standard.

7. The base station of claim 6, wherein the first remote radio unit comprises a plurality of remote radio units, and wherein the first baseband unit is further configured to transfer the terminal on the first remote radio unit that is deactivated to the first remote radio unit that is not deactivated.

8. The base station of claim 6, wherein the first baseband unit is further configured to obtain a serial number of a terminal whose clutter signals do not satisfy the first preset clutter standard and a serial number of a first remote radio unit whose clutter signals do not satisfy the second preset clutter standard, and manage and control according to the serial number of the terminal and the serial number of the first remote radio unit.

9. A terminal, comprising:

the first radio frequency processing unit is used for receiving a third radio frequency signal sent by a base station and acquiring a clutter signal in the third radio frequency signal;

and the second baseband unit is used for sending a second clutter adjusting instruction to the base station when the clutter signals in the third radio frequency signal do not meet a third preset clutter standard, so that the base station adjusts the base station according to the second clutter adjusting instruction until the clutter signals in the third radio frequency signal meet the third preset clutter standard.

10. The terminal of claim 9, wherein the second spur adjustment command comprises at least one of a second power supply mode adjustment command and a second output power adjustment command for a second rf power amplifier in the base station, and wherein the second power supply mode adjustment command has a higher priority than the second output power adjustment command.

11. The terminal of claim 10, wherein the second power mode adjustment command comprises at least one of a second ET mode command, a second APT mode command, and a second maximum voltage mode command; the second output power adjustment instruction comprises a second power down instruction.

12. The terminal according to any of claims 9-11,

the first radio frequency processing unit is further used for receiving a fourth radio frequency signal sent by the first radio frequency processing unit and acquiring a clutter signal in the fourth radio frequency signal;

the second baseband unit is further configured to control the first radio frequency processing unit to stop working when the clutter signal in the fourth radio frequency signal does not meet the fourth preset clutter standard.

13. A method of clutter suppression for a radio frequency signal, applied to a first communications device, the method comprising:

acquiring a clutter signal in the fifth radio frequency signal;

and when the clutter signal in the fifth radio frequency signal does not meet a fifth preset clutter standard, sending a third clutter adjusting instruction to the second communication equipment, so that the second communication equipment adjusts itself according to the third clutter adjusting instruction until the clutter signal in the fifth radio frequency signal meets the fifth preset clutter standard.

14. The method of clutter suppression for radio frequency signals according to claim 13, wherein when said first communications device is a base station and said base station comprises a plurality of first remote radio units, said method further comprises:

receiving a sixth radio frequency signal sent by the first remote radio unit;

acquiring a clutter signal in the sixth radio frequency signal;

and when the clutter signal in the sixth radio frequency signal does not meet a sixth preset clutter standard, controlling the first radio remote unit to stop working, and transferring the second communication equipment on the first radio remote unit which stops working to other first radio remote units which do not stop working.

15. The method of radio frequency signal clutter suppression according to claim 13, wherein when the first communication device is a terminal and the terminal comprises a first radio frequency processing unit, the method further comprises:

acquiring a clutter signal in the seventh radio frequency signal;

and when the clutter signal in the seventh radio frequency signal does not meet a seventh preset clutter standard, controlling the first radio frequency processing unit to stop working.