WO2024078019A1 - Signal processing method, signal processing apparatus, and communication device - Google Patents

Abstract

The embodiments of the present disclosure provide a signal processing method, a signal processing apparatus, and a communication device. The signal processing method is applied to the signal processing apparatus, and comprises: when multi-path carrier signals are received, acquiring multi-path frequency band information for the multi-path carrier signals; when the multi-path frequency band information matches a preset interference frequency band, classifying the multi-path carrier signals according to the interference frequency band, and obtaining first-type carrier signals and second-type carrier signals, wherein the first-type carrier signals comprise, of the multi-path carrier signals, at least two paths of carrier signals which interfere with each other in a signal frequency band; filtering the first-type carrier signals to obtain filtered signals; and according to the filtered signals and the second-type carrier signals, generating combined signals.

Description

Signal processing method, signal processing device and communication equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

The present disclosure claims the priority of Chinese patent application CN202211227753.7 filed on October 9, 2022, entitled “Signal processing method, signal processing device and communication equipment”, the entire contents of which are incorporated into the present disclosure by reference.

Technical Field

The present disclosure relates to the field of communication technology, and in particular to a signal processing method, a signal processing device and a communication device.

Background technique

At present, multi-carrier technology can be used to convert high-speed serial data streams into multiple low-speed parallel data streams, so as to transmit data between the RF chip and the antenna through multiple carrier signals at the same time. This requires the RF front-end device to process multiple carriers at the same time, so people set up signal processing devices between the RF chip and the antenna, such as RF front-end devices, to amplify and filter the interactive multiple carrier signals. However, in some cases, the signal processing device has the technical problem of being difficult to eliminate the interference between multiple carrier signals when they are transmitted simultaneously.

Summary of the invention

The embodiments of the present disclosure provide a signal processing method, a signal processing device and a communication device.

In a first aspect, an embodiment of the present disclosure provides a signal processing method, the method comprising: when receiving multi-channel carrier signals, obtaining multi-channel frequency band information of the multi-channel carrier signals; when the multi-channel frequency band information matches a preset interference frequency band, classifying the multi-channel carrier signals according to the interference frequency band to obtain a first type of carrier signal and a second type of carrier signal, wherein the first type of carrier signal is at least two carrier signals in the multi-channel carrier signals whose signal frequency bands interfere with each other; filtering the first type of carrier signal to obtain a filtered signal; and generating a combined signal based on the filtered signal and the second type of carrier signal.

In the second aspect, the embodiments of the present disclosure also provide a signal processing device, including: an information acquisition module, a signal classification module, a signal filtering module, and a signal combining module. The information acquisition module is configured to obtain the multi-channel frequency band information of the multi-channel carrier signals when receiving the multi-channel carrier signals; the signal classification module is configured to classify the multi-channel carrier signals according to the interference frequency band when the multi-channel frequency band information matches the preset interference frequency band, and obtain the first type of carrier signals and the second type of carrier signals, wherein the first type of carrier signals are at least two carrier signals in the multi-channel carrier signals whose signal frequency bands interfere with each other; the signal filtering module is configured to filter the first type of carrier signals to obtain the filtered signals; the signal combining module is configured to generate the combined signal according to the filtered signals and the second type of carrier signals.

In a third aspect, the embodiment of the present disclosure further provides a communication device, the communication device comprising a radio frequency communication device, a signal transceiver device, and a signal processing device connected to the radio frequency communication device and the signal transceiver device, the signal processing device is used to execute any signal processing method provided in the present disclosure specification; wherein the radio frequency communication device is used to output a multi-channel carrier to the signal processing device The signal transceiver is used to receive the combined signal generated by the signal processing device; or the signal transceiver is used to output a multi-channel carrier signal to the signal processing device, and the radio frequency communication device is used to receive the combined signal generated by the signal processing device.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic flow chart of a signal processing method provided by an embodiment of the present disclosure;

FIG2 is a schematic block diagram of the structure of a signal processing device provided by an embodiment of the present disclosure;

FIG3 is a schematic diagram of a flow chart of filtering a first type of filtering signal in a signal processing method provided by an embodiment of the present disclosure;

FIG4 is a schematic block diagram of the structure of a signal filtering module of a signal processing device provided by an embodiment of the present disclosure;

FIG5 is a schematic block diagram of the structure of another signal filtering module of the signal processing device provided by an embodiment of the present disclosure;

FIG6 is a schematic block diagram of the structure of another signal filtering module of the signal processing device provided by an embodiment of the present disclosure;

FIG7 is a schematic block diagram of the structure of a signal combining module of a signal processing device provided in an embodiment of the present disclosure; and

FIG8 is a schematic block diagram of the structure of a communication device provided in an embodiment of the present disclosure.

Detailed ways

The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations/steps, nor must they be executed in the order described. For example, some operations/steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

It should be understood that the terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. As used in this disclosure and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

At present, multi-carrier technology can be used to convert high-speed serial data streams into multiple low-speed parallel data streams, so as to transmit data between the RF chip and the antenna through multiple carrier signals at the same time. This requires the RF front-end device to simultaneously transmit multiple carrier signals. For processing, people set up a signal processing device between the RF chip and the antenna, such as an RF front-end device, to amplify and filter the interacting multiple carrier signals.

However, due to technical limitations, the architecture of existing signal processing devices is relatively large and complex, and it is difficult to eliminate the interference between multiple carrier signals when they are transmitted simultaneously, which seriously affects the filtering performance of the signal processing device. The working performance of the signal processing device during multi-channel transmission cannot meet actual usage requirements.

The embodiments of the present disclosure provide a signal processing method, a signal processing device and a communication device. For example, the signal processing method provided by the present disclosure can be applied to the signal processing device, and the signal processing device is respectively communicatively connected with a radio frequency communication device and a signal transceiver device, and is specifically used to amplify and filter the signal transmitted from the radio frequency communication device to the signal transceiver device or from the signal transceiver device to the radio frequency communication device.

For the convenience and neatness of description, a signal processing device is used to perform the signal processing method provided by the present disclosure for specific description. However, it should be noted that the signal processing method provided by the present disclosure is not limited to application in signal processing devices.

In conjunction with the accompanying drawings, some embodiments of the present disclosure are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1 , which is a flow chart of a signal processing method provided in an embodiment of the present disclosure.

As shown in FIG. 1 , the signal processing method includes steps S101 to S104 .

Step S101: when receiving multiple carrier signals, obtain multiple frequency band information of the multiple carrier signals.

As shown in FIG2 , a signal processing device is used to perform the signal processing method provided by the present disclosure for specific description. The signal processing device 200 is respectively connected to the radio frequency communication device 300 and the signal transceiver device 400 for communication. In an exemplary embodiment, the radio frequency communication device 300 is, for example, a radio frequency chip, and the signal transceiver device 400 is, for example, an antenna. It should be noted that those skilled in the art can clearly understand that the radio frequency communication device 300 includes but is not limited to a radio frequency chip, and the signal transceiver device 400 includes but is not limited to an antenna. For the convenience and simplicity of description, the following embodiments are described by taking the radio frequency communication device 300 as a radio frequency chip and the signal transceiver device 400 as an antenna as an example.

In some embodiments, a radio frequency communication device such as a radio frequency chip outputs a signal to a signal transceiver such as an antenna through a signal processing device, and then the signal transceiver transmits the signal to an external device, wherein the external device includes but is not limited to a communication base station and a mobile communication device that are communicatively connected to the signal transceiver. It should be understood that in addition to the radio frequency communication device outputting a communication signal to the signal transceiver through the signal processing device, when the signal transceiver receives an external signal output from an external device, the signal transceiver may also output a communication signal to the radio frequency communication device through the signal processing device 200 to achieve communication interaction between the radio frequency communication device and the signal transceiver.

In an exemplary embodiment, the signal processing device 200 includes a signal acquisition module 410, a signal classification module 420, and a signal The signal filtering module 430 and the signal combining module 440 can be used to perform step S101 of the method through the signal acquisition module 410: when receiving multi-channel carrier signals, multi-channel frequency band information of the multi-channel carrier signals is acquired.

In an exemplary embodiment, when the signal processing device receives the multi-channel carrier signal output by the radio frequency communication device, the signal acquisition module first acquires the multi-channel frequency band information of the multi-channel carrier signal.

The multi-channel carrier signal includes at least two channels of carrier signals, and each channel of carrier signal has a pre-configured signal frequency band, such as B1 frequency band, B2 frequency band, B3 frequency band or B4 frequency band, etc. It should be noted that the signal frequency bands of the two different carrier signals may partially overlap or be completely separated. In an exemplary embodiment, the multi-channel carrier signal may include a first carrier signal whose signal frequency band is B4 frequency band, a second carrier signal whose signal frequency band is B9 frequency band, and a third carrier signal whose signal frequency band is B12 frequency band.

In some embodiments, obtaining the multi-channel frequency band information of the multi-channel carrier signal further includes: receiving the multi-channel frequency band information of the multi-channel carrier signal output by the radio frequency communication device and/or the signal transceiver device. In an exemplary embodiment, the multi-channel frequency band information of the multi-channel carrier signal can be determined in the process of the radio frequency communication device implementing frequency handshake with the external device through the signal processing device and the signal transceiver device, that is, when the radio frequency communication device outputs the multi-channel carrier signal to the signal processing device, at least one of the radio frequency communication device and the signal transceiver device has determined the multi-channel frequency band information of the multi-channel carrier signal and outputs corresponding information to the signal processing device to inform the multi-channel frequency band information of the multi-channel carrier signal. Therefore, when receiving the multi-channel carrier signal output by the radio frequency communication device, the signal processing device can determine the multi-channel frequency band information of the multi-channel carrier signal through the radio frequency communication device and/or the signal transceiver device.

Step S102: when the multi-channel frequency band information matches the preset interference frequency band, the multi-channel carrier signals are classified according to the interference frequency band to obtain first-category carrier signals and second-category carrier signals, wherein the first-category carrier signals are at least two carrier signals whose signal frequency bands interfere with each other in the multi-channel carrier signals.

It should be understood that the preset interference frequency band is a frequency band combination composed of multiple pre-configured frequency bands, and the signals of multiple frequency bands in the frequency band combination will interfere with each other when transmitted simultaneously, wherein the interference between carrier signals of different frequency bands when transmitted simultaneously can be determined by testing. It should also be understood that there is a partial frequency band overlap between the signal frequency bands or multiple frequency bands corresponding to the two carrier signals that will interfere with each other when transmitted simultaneously.

For example, step S102 of the present disclosure may be performed by a signal classification module in a signal processing device.

In an exemplary embodiment, after obtaining the multi-channel frequency band information of the multi-channel carrier signal, the multi-channel frequency band information is compared with the preset interference frequency band. When the multi-channel frequency band information matches the preset interference frequency band, the signal processing device classifies the multi-channel carrier signal according to the interference frequency band to obtain a first type of carrier signal and a second type of carrier signal, wherein the first type of carrier signal is at least two carrier signals whose signal frequency bands interfere with each other in the multi-channel carrier signal, and the second type of carrier signal is a carrier signal in the multi-channel carrier signal that does not interfere with each other, that is, any second type of carrier signal will not interfere with the multi-channel carrier signal. The other carrier signals in the circuit will interfere with each other.

In an exemplary embodiment, the multi-channel carrier signal includes a first carrier signal whose signal frequency band is the B4 frequency band, a second carrier signal whose signal frequency band is the B9 frequency band, and a third carrier signal whose signal frequency band is the B12 frequency band, wherein the transmission frequency band corresponding to the B4 frequency band ranges from 1710MHZ to 1755MHZ, the transmission frequency band corresponding to the B9 frequency band ranges from 1749.9MHZ to 1784.9MHZ, and the transmission frequency band corresponding to the B12 frequency band ranges from 2097MHZ to 2148MHZ. The transmission frequency band corresponding to the B4 frequency band and the transmission frequency band corresponding to the B9 frequency band have partial frequency band overlap, while the B12 frequency band does not have any frequency band overlap with the B4 frequency band and the B9 frequency band. It is easy to know that the B4 frequency band and the B9 frequency band are included in the preset interference frequency band. The multi-channel carrier signals are classified according to the interference frequency band. The signal frequency bands of the first type of carrier signal are the B4 frequency band and the B9 frequency band. Therefore, the first carrier signal and the second carrier signal are classified as the first type of carrier signals, and the third carrier signal is classified as the second type of carrier signal.

Step S103: filter the first type of carrier signal to obtain a filtered signal.

In an exemplary embodiment, after classifying multiple carrier signals according to interference frequency bands to obtain first-class carrier signals and second-class carrier signals, the signal processing device filters the first-class carrier signals to obtain filtered signals. It should be noted that filtering the first-class carrier signals specifically involves filtering at least one carrier signal in the first-class filtered signals to filter out signals on part of the signal frequency band of at least one carrier signal, thereby eliminating some signals in the first-class carrier signals that overlap in signal frequency bands or multiplied frequency bands.

As shown in FIG. 3 , in some implementations, step S103 performs filtering processing on the first type of carrier signal to obtain a filtered signal, including sub-step S1033 -sub-step S1033 .

Sub-step S1031, determining the overlapping portion of the signal frequency bands of at least two first-category carrier signals as an interference frequency band; Sub-step S1032, filtering out a signal in the interference frequency band from at least one first-category carrier signal.

For example, step S103 of the present disclosure may be performed by a signal filtering module in a signal processing device.

As shown in FIG4 , in some embodiments, the signal filtering module 230 includes at least a multiplexer 231, and the multiplexer 231 is respectively provided with multiple filtering channels 231 corresponding to multiple signal frequency bands. When the signal filtering module 230 performs filtering processing on the first type of carrier signal to obtain a filtered signal, it further includes: determining the overlapping part of the signal frequency bands of at least two first type of carrier signals as an interference frequency band; and controlling at least one filtering channel 231 corresponding to the interference frequency band to filter out the signal in the corresponding first type of carrier signal in the interference frequency band.

In an exemplary embodiment, each filter channel is pre-configured to receive a carrier signal of a corresponding signal frequency band, wherein the signal frequency bands corresponding to each filter channel may be separated from each other or may have partial frequency band overlap, and the multi-channel carrier signal includes a first type of carrier signal and a second type of carrier signal. When a signal is received, the signal processing device first controls the filter channel to receive the carrier signal corresponding to the frequency band, and then determines a first target channel corresponding to the first type of carrier signal in the multi-channel filter channel, wherein the signal frequency band corresponding to the first target channel matches the signal frequency band of the first type of carrier signal, and then controls at least one first target channel to perform a preset filtering process on the input first type of carrier signal to obtain a filtered signal.

In an exemplary embodiment, the multi-path filtering channel includes three filtering channels whose corresponding signal frequency bands are B4 frequency band, B9 frequency band and B12 frequency band respectively, and the signal frequency band of the first type of carrier signal is B4 frequency band and B9 frequency band. Therefore, the filtering channel whose corresponding signal frequency band is B4 frequency band and the filtering channel whose corresponding signal frequency band is B4 frequency band are used as the first target channel.

It should be understood that there are at least two first target channels determined in the multi-path filtering channel, and there is partial frequency band overlap between the signal frequency bands or frequency multiples corresponding to the at least two first target channels. The first target channel is used to filter out the signal on the partial signal frequency band of at least one carrier signal, thereby eliminating the partial signal with overlapping signal frequency bands or frequency multiples in the first type of carrier signal, that is, the radio frequency communication device can control one first target channel to filter out the partial signal with overlapping frequency bands, and can also control two or more first target channels to filter out the partial signal with overlapping frequency bands. For example, when the first target channel includes a filtering channel of the B4 frequency band and a filtering channel of the B9 frequency band, the B4 frequency band and the B9 frequency band have an overlapping frequency band of 1749.9MHZ-1755MHZ. The radio frequency communication device can control at least one of the filtering channel of the B4 frequency band and the filtering channel of the B9 frequency band to filter out the signal in the 1749.9MHZ-1755MHZ frequency band in the input carrier signal, and can also control the filtering channel of the B4 frequency band and the filtering channel of the B9 frequency band to filter out part of the signal in the input carrier signal respectively, and the union of the signal frequency band filtered by the filtering channel of the B4 frequency band and the signal frequency band filtered by the filtering channel of the B9 frequency band is the 1749.9MHZ-1755MHZ frequency band.

By eliminating some signals with overlapping signal frequency bands or multiplied frequency bands in the first type of carrier signal, filtering processing of the first type of carrier signal is achieved, thereby obtaining a filtered signal, which can eliminate the interference between carrier signals when multiple carrier signals are transmitted simultaneously and improve the filtering performance of the signal processing device.

In an exemplary embodiment, after determining the overlapping part of the signal frequency bands of at least two first-type carrier signals as the interference frequency band in sub-step S1031, it also includes: determining a second target channel corresponding to the second-type carrier signal in the multi-path filtering channel, wherein the signal frequency band corresponding to the second target channel matches the signal frequency band of the second-type carrier signal, that is, the carrier signal received by the second target channel does not need to be filtered. It should be noted that the second target channel in the multiplexer is used to receive the carrier signal corresponding to the frequency band, and output the carrier signal corresponding to the frequency band to the signal transceiver device, that is, the second target channel directly outputs the received second-type carrier signal to the signal transceiver device.

In an exemplary embodiment, the signal processing device further includes a controller, which is at least electrically connected to the multiplexer and is used to control the signal processing device to execute the signal processing method provided in any embodiment of the present disclosure.

In some implementations, filtering out a signal in an interference frequency band from at least one first type of carrier signal includes: determining A specific sub-frequency band that matches the interference frequency band; filtering out the signal in the corresponding specific sub-frequency band.

In an exemplary embodiment, when the signal processing device executing the present method filters out the signal in the interference frequency band in the first type of carrier signal, it first determines a specific sub-frequency band that matches the interference frequency band. It should be understood that the specific sub-frequency band that matches the interference frequency band is specifically a sub-frequency band under the interference frequency band. After determining the specific sub-frequency band, the signal processing device filters out the signal in the corresponding specific sub-frequency band.

As shown in Figure 4, in some embodiments, the filter channel 231 is provided with multiple trap filters 2312 respectively used to filter out different specific sub-frequency band signals and a selection switch 2313 connected to the multiple trap filters 2312. In the same filter channel 231 or the same first target channel, multiple trap filters 2312 are arranged in parallel to control at least one filter channel corresponding to the interference frequency band to filter out the signal in the interference frequency band in the corresponding first type carrier signal, including: in at least one filter channel corresponding to the interference frequency band, determine the target trap that matches the corresponding specific sub-frequency band with the interference frequency band; control the target trap to work through the selection switch so that the target trap filters out the signal in the corresponding specific sub-frequency band.

It should be noted that the multiple trap filters 2312 arranged in parallel are respectively connected to the selection switch 2313. The selection switch 2313 can configure the trap filters 2312 connected thereto, and control the target trap filter to work so as to filter out the signal in the corresponding specific sub-frequency band, thereby filtering out the signal in the interference frequency band in the first type of carrier signal.

In an exemplary embodiment, when the signal processing device controls at least one filter channel corresponding to the interference frequency band to filter out the signal in the interference frequency band in the corresponding first-class carrier signal, it first determines the overlapping part of the signal frequency bands of at least two first-class carrier signals as the interference frequency band, for example, the 1749.9MHZ-1755MHZ frequency band where the B4 frequency band and the B9 frequency band overlap with each other is used as the interference frequency band. After determining the interference frequency band, a target notch filter is determined among multiple notch filters of at least one first target channel according to the interference frequency band, wherein the specific sub-frequency band corresponding to the target notch filter matches the interference frequency band, and then the selection switch is controlled to configure the target notch filter among the multiple notch filters to work, so that the target notch filter receives the signal corresponding to the specific sub-frequency band and filters it out, and among the multiple notch filters of the first target channel, the notch filters other than the target notch filter are controlled to receive the signal corresponding to the specific sub-frequency band but not filter it out, and output the signal corresponding to the specific sub-frequency band, and the signal output by at least one other notch filter constitutes the filtered signal, so that the target notch filter can filter out the signal corresponding to the specific sub-frequency band, and the notch filters other than the target notch filter retain the signal corresponding to the specific sub-frequency band, thereby ensuring the filtering accuracy of the multiplexer and improving the filtering performance of the signal processing device.

It should be understood that in the same filtering channel or the same first target channel, the specific sub-bands corresponding to each notch filter may be separated from each other or may have some overlapping frequency bands, and the union of the signal frequency bands corresponding to all the target notches in the first target channel is the interference frequency band. After determining at least one target notch filter, the target notch filter is controlled to filter out the input signal, wherein the signal input to the target notch filter corresponds to a specific sub-band. In an exemplary embodiment, in a scenario where the interference frequency band is the 1749.9MHZ-1755MHZ frequency band, the union of the specific sub-bands corresponding to all the target notches is The set should be the 1749.9MHZ-1755MHZ frequency band, controlling all target notch filters to filter out the signals corresponding to the specific sub-frequency band, thereby completing the preset filtering processing on the input first-class carrier signal, and obtaining the signals output by other notch filters as filtered signals.

As shown in FIG. 3 , in some implementations, before sub-step S1033 of step S103 , the method further includes: sub-step S1031 , determining a target frequency band according to multi-channel frequency band information; and sub-step S1032 , performing a preset amplification process on a carrier signal in the target frequency band among the multi-channel carrier signals.

For example, step S103 of the present disclosure may be performed by a signal filtering module in a signal processing device.

As shown in Figures 4 and 5, in some embodiments, the signal filtering module 230 also includes a multi-channel amplification channel 232 respectively set corresponding to a plurality of signal frequency bands, and the amplification channel 232 is connected to the filtering channel 231 corresponding to the signal frequency band; before determining the overlapping part of the signal frequency bands of at least two first-class carrier signals as the interference frequency band, the signal filtering module 2311 also includes: determining the target frequency band according to the multi-channel frequency band information; controlling the amplification channel 232 corresponding to the target frequency band to perform preset amplification processing on the carrier signal in the target frequency band among the multi-channel carrier signals.

In an exemplary embodiment, the signal filtering module first determines the target frequency band based on the multi-channel frequency band information, and then controls the amplification channel corresponding to the target frequency band to perform a preset amplification processing on the carrier signal in the multi-channel carrier signal that is in the target frequency band, and controls the amplification channel corresponding to the target frequency band to output the amplified carrier signal to the filtering channel corresponding to the frequency band.

It should be understood that the signal strength of the multi-channel carrier signal output by the radio frequency communication device to the multiplexer is less than the signal strength of the combined signal actually output by the signal transceiver device to the external device, so the multi-channel carrier signal needs to be amplified. Based on this, the signal processing device sets an amplification channel between the radio frequency communication device and each filter channel to amplify the multi-channel carrier signal output by the radio frequency communication device, and outputs the amplified multi-channel carrier signal to the corresponding filter channel.

In an exemplary embodiment, the signal processing device first determines the target frequency band according to the multi-channel frequency band information, wherein the target frequency band is the frequency band used by the radio frequency communication device and the signal transceiver device to interact with multiple carrier signals, and then controls the amplification channel to receive the carrier signal corresponding to the target frequency band in the multiple carrier signals, amplifies the carrier signal, and then outputs the amplified carrier signal to the filtering channel corresponding to the frequency band, that is, the amplification channel whose corresponding signal frequency band is outside the target frequency band will not output the amplified carrier signal to the corresponding filtering channel, which not only realizes the separate amplification of carrier signals of different carrier frequency bands, but also ensures that the carrier signal input to the multiplexer is in the target frequency band, thereby preventing other signals outside the target frequency band from entering the multiplexer and interfering with the process of the signal processing device transmitting multiple carrier signals at the same time.

As shown in FIG6 , in some embodiments, the amplification channel 232 includes a power amplifier 2321 and a power amplification switch 2322, wherein the power amplifier 2321 is used to receive an input multi-channel carrier signal, wherein the multi-channel carrier signal may include a first type of carrier signal and a second type of carrier signal, and the other end is connected to the filtering channel 410 through the power amplification switch 2322, and the power amplifier 2321 is used to amplify the signal strength of the carrier signal input to the amplification channel 232, and transmit the signal to the opposite side through the power amplification switch. It should be noted that when the power amplifier switch 2322 is in the on state, the amplified carrier signal can be output to the corresponding filter channel 410 through the power amplifier switch 2322, and when the power amplifier switch 2322 is in the off state, the amplified carrier signal cannot be output to the corresponding filter channel 410 through the power amplifier switch.

Controlling the amplifying channel corresponding to the signal frequency band to output the amplified carrier signal to the filtering channel corresponding to the frequency band further includes: determining the amplifying channel corresponding to the signal frequency band as the first target amplifying channel; controlling the power amplifying switch in the first target amplifying channel to be turned on so that the power amplifier outputs the amplified carrier signal to the filtering channel.

In an exemplary embodiment, the signal processing device first determines the amplification channel corresponding to the signal frequency band as the first target amplification channel, and then controls the power amplification switch in the first target amplification channel to switch to the on state, so that the power amplifier outputs the amplified carrier signal to the filtering channel. In an exemplary embodiment, the signal processing device also switches the power amplification switches of other amplification channels other than the first target amplification channel to the off state.

In an exemplary embodiment, when the target frequency bands of the multi-channel carrier signals include the B4 frequency band, the B9 frequency band and the B12 frequency band, the signal processing device uses the amplification channels corresponding to the B4 frequency band, the B9 frequency band and the B12 frequency band respectively as the first target amplification channels, and controls the power amplification switch in the first target amplification channel to switch to the on state, so that the carrier signals of the B4 frequency band, the B9 frequency band and the B12 frequency band are output to the corresponding filtering channels after amplification processing.

Step S104: Generate a combined signal according to the filtered signal and the second type carrier signal.

After filtering the first type of filtered signal to obtain a filtered signal, the signal processing device generates a combined signal based on the filtered signal and the second type of carrier signal. In an exemplary embodiment, the signal processing device receives the filtered signal output by the first target channel and the second type of carrier signal output by the second target channel, and combines the filtered signal and the second type of carrier signal to generate a combined signal. After generating the combined signal, the signal processing device outputs the combined signal to the signal transceiver device, so that the signal transceiver device outputs the combined signal to an external device.

For example, step S104 of the present disclosure may be performed by a signal combining module in a signal processing device.

As shown in FIG7 , in some embodiments, the signal combining module 240 includes a frequency multiplier 241, wherein the input end of the frequency multiplier 241 is connected to a plurality of filter channels 231, and the frequency multiplier 241 is used to receive the filtered signal output by the first target channel and the second type of carrier signal output by the second target channel, combine the filtered signal and the second type of carrier signal to generate a combined signal, and output the combined signal from the output end to the signal transceiver device or the radio frequency communication device. In an exemplary embodiment, when the signal transceiver device 400 is an antenna, and the frequency multiplier 241 outputs the combined signal to the signal transceiver device 400, an antenna frequency multiplier can be used as the frequency multiplier 241 connected to the antenna.

In some implementations, step S104 generates a combined signal according to the filtered signal and the second type of carrier signal, further comprising: performing corresponding phase shift processing on the filtered signal and the second type of carrier signal respectively, so that the filtered signal and the second type of carrier signal are The phase difference between signals of any two frequency bands in the signal is within a preset target phase difference range; the filtered signal after the phase shift processing is combined with the second type of carrier signal to obtain a combined signal.

As shown in FIG7 , taking the signal filter module executing step S104 as an example, the signal filter module 240 includes not only a frequency multiplier 241, but also a plurality of phase shifters 243 respectively arranged corresponding to the plurality of filter channels 231, wherein the corresponding phase shifter 243 is connected between the corresponding filter channel 231 and the same frequency multiplier 241. When the signal filter module 240 generates a combined signal according to the filtered signal and the second type of carrier signal, it further includes: controlling the phase shifter 243 corresponding to the signal frequency band to perform corresponding phase shift processing on the filtered signal and the second type of carrier signal respectively, so that the phase difference between the filtered signal and the signal of any two frequency bands in the second type of carrier signal is within a preset target phase difference range; controlling the frequency multiplier 241 to combine the filtered signal after the phase shift processing with the second type of carrier signal to obtain a combined signal.

In an exemplary embodiment, the signal combining module 240 further includes a plurality of switch units 242 provided corresponding to the plurality of filter channels 231. The signal processing device 200 can control the conduction and shutoff of each branch where the phase shifter 243 is located through the corresponding switch unit 242, specifically, control the switch unit 242 whose corresponding signal frequency band is in the target frequency band to be turned on, and control the switch unit 242 in the filter channel 231 whose corresponding signal frequency band is outside the target frequency band to be turned off, so that the filter channel 231 whose corresponding signal frequency band is in the target frequency band outputs the signal retained by the notch filter group to the phase shifter 243. The signal processing device 200 is also used to control at least one phase shifter 243 to perform phase shifting processing on the signal received by the phase shifter 243 to adjust the phase difference of the output signals of multiple filter channels 231, so that the phase difference between the filtered signal and the signals of any two frequency bands in the second type of carrier signal is within a preset target phase difference range, and then output the phase shifted signal as a filtered signal to the multi-frequency device 241, so as to significantly improve the combining effect of the multi-frequency device 241 on the filtered signal and the second type of carrier signal, and eliminate the interference caused by each other when multiple signals are transmitted simultaneously.

It should be understood that the RF communication device outputs communication signals to the signal transceiver device through the signal processing device, and the signal transceiver device outputs communication signals to the RF communication device through the signal processing device at the same time, that is, the communication interaction between the RF communication device and the signal transceiver device can be bidirectional and parallel, and the signal processing method provided in the present disclosure can also be applied to the scenario in which the RF communication device outputs a first multi-channel carrier signal to the signal transceiver device through the signal processing device, and the signal transceiver device outputs a second multi-channel carrier signal to the RF communication device through the signal processing device.

The following specifically describes a scenario in which the signal processing method provided by the present disclosure is applied to a radio frequency communication device outputting a first multi-channel carrier signal to a signal transceiver device through a signal processing device, and the signal transceiver device outputs a second multi-channel carrier signal to the radio frequency communication device through a signal processing device.

In an exemplary embodiment, when the radio frequency communication device outputs a first multi-channel carrier signal to the signal transceiver device through the signal processing device, and the signal transceiver device outputs a second multi-channel carrier signal to the radio frequency communication device through the signal processing device, the signal processing device obtains the multi-channel frequency band information of the multi-channel carrier signal. The multi-channel frequency band information of the multi-channel carrier signal at least includes The information includes first multiple frequency band information of the first multiple frequency band signal and second multiple frequency band information of the second multiple frequency band signal.

After acquiring multi-channel frequency band information, the first multi-channel frequency band information, the second multi-channel frequency band information and the preset interference frequency band are compared. When the combination of the first multi-channel frequency band information and the second multi-channel frequency band information matches the preset interference frequency band, the multi-channel carrier signals are classified according to the interference frequency band to obtain a first type of carrier signal and a second type of carrier signal, wherein the first type of carrier signal is at least two carrier signals in which the signal frequency bands of the multi-channel carrier signals interfere with each other, and then the first type of carrier signal is filtered to obtain a filtered signal, and a combined signal is generated according to the filtered signal and the second type of carrier signal.

In an exemplary embodiment, when the multi-channel carrier signal output by the radio frequency communication device includes a carrier signal in the B12 frequency band, and the multi-channel receiving signal output by the signal transceiver device includes a receiving signal in the B4 frequency band, the receiving frequency band range corresponding to the B4 frequency band is 2110MHZ-2155MHZ, the transmitting frequency band range corresponding to the B12 frequency band is 699MHZ-716MHZ, and the triple frequency range corresponding to the transmitting frequency band range is 2097MHZ-2148MHZ. Therefore, the triple frequency of the transmitting frequency band of the B12 frequency band and the B4 frequency band have an overlapping frequency band of 2097MHZ-2148MHZ, which will cause interference to the radio frequency communication device receiving the B4 frequency band signal. Based on this, the signal processing device uses the mutually interfering carrier signal of the B12 frequency band and the receiving signal of the B4 frequency band as the fifth type of carrier signal, and filters one of the two to eliminate the frequency band overlap between the two in the 2097MHZ-2148MHZ frequency band, thereby eliminating the interference between the above two signals when the signal processing device simultaneously transmits the carrier signal of the B12 frequency band and the receiving signal of the B4 frequency band.

By eliminating the overlapping signals in the signal frequency band or the double frequency band in the first type of carrier signal to obtain a filtered signal, the interference between the carrier signals when multiple carrier signals are transmitted simultaneously can be eliminated, and the filtering performance of the signal processing device and the performance of carrier aggregation can be improved.

In summary, the signal processing method provided in the above embodiment includes: when receiving multi-channel carrier signals, obtaining multi-channel frequency band information of the multi-channel carrier signals, and then when the multi-channel frequency band information matches the preset interference frequency band, classifying the multi-channel carrier signals according to the interference frequency band to obtain a first type of carrier signal and a second type of carrier signal, wherein the first type of carrier signal is at least two carrier signals in the multi-channel carrier signals whose signal frequency bands interfere with each other, and then filtering the first type of carrier signal to obtain a filtered signal; generating a combined signal according to the filtered signal and the second type of carrier signal, thereby realizing the integration of multi-channel carrier signal transmission, eliminating the interference effect between carrier signals when multi-channel carrier signals are transmitted simultaneously, and improving the filtering performance of the signal processing device.

Please refer to FIG. 2 , which is a schematic block diagram of the structure of a signal processing device provided in an embodiment of the present disclosure.

As shown in FIG. 2 , the present disclosure further provides a signal processing device 200 , which includes: an information acquisition module 210 , a signal classification module 220 , a signal filtering module 230 and a signal combining module 240 .

In an exemplary embodiment, the information acquisition module 210 is used to obtain multi-channel frequency band information of the multi-channel carrier signals when receiving the multi-channel carrier signals, and the signal classification module 220 is used to classify the multi-channel frequency band information according to the interference frequency band when the multi-channel frequency band information matches the preset interference frequency band. The scrambling band classifies the multi-channel carrier signals to obtain a first type of carrier signal and a second type of carrier signal, wherein the first type of carrier signal is at least two carrier signals whose signal frequency bands interfere with each other in the multi-channel carrier signals. The signal filtering module 230 is used to filter the first type of carrier signal to obtain a filtered signal, and the signal combining module 240 is used to generate a combined signal based on the filtered signal and the second type of carrier signal.

In some embodiments, the signal processing device provided by the present disclosure includes a matching circuit, a radio frequency power amplifier, a low noise amplifier, a multiplex filter, a phase shifter, a switch unit, and a multi-frequency device. It should be noted that the matching circuit, the radio frequency power amplifier, the low noise amplifier, the multiplex filter, the gating switch, the phase shifter, the switch unit, and the multi-frequency device are integrated and packaged in the same device as the signal processing device, which improves the integration of the signal processing device and reduces the volume of the signal processing device.

In an exemplary embodiment, when a radio frequency communication device such as a radio frequency chip inputs a multi-channel carrier signal to a signal processing device, the signal processing device obtains the multi-channel frequency band information of the multi-channel carrier signal, and compares the multi-channel frequency band information with a preset interference frequency band through a matching circuit. When the multi-channel frequency band information matches the interference frequency band, the multi-channel carrier signal is classified into a first type of carrier signal and a second type of carrier signal according to the interference frequency band. After determining the first type of carrier signal, a radio frequency power amplifier is used as an amplification channel, and the first type of carrier signal and the second type of carrier signal are input into the radio frequency power amplifier for amplification processing, and the carrier signal in the target frequency band of the multi-channel carrier signal is subjected to a preset amplification processing, and then the first type of carrier signal is filtered through a multiplex filter including multiple filtering channels, specifically, at least one filtering channel corresponding to the interference frequency band is controlled to filter out the signal in the interference frequency band in the corresponding first type of carrier signal to obtain a filtered signal. After that, the signal processing device performs corresponding phase shift processing on the filtered signal and the second type of carrier signal through a phase shifter, so that the phase difference between the filtered signal and the signals of any two frequency bands in the second type of carrier signal is within a preset target phase difference range, and controls the switch unit whose corresponding signal frequency band is in the target frequency band to be turned on, so as to output the filtered signal and the signal in the target frequency band of the second type of carrier signal, and then combines the output signals in the target frequency band through a multi-frequency device to obtain a combined signal. It should be noted that when the signal transceiver device is an antenna device, the multi-frequency device can be an antenna multi-frequency device. The signal processing device outputs the processed combined signal to the signal transceiver device, so that the signal transceiver device, such as an antenna device, sends the combined signal to an external device.

In an exemplary embodiment, for example, when a signal transceiver device of an antenna device inputs a multi-channel carrier signal to a signal processing device, the signal processing device obtains multi-channel frequency band information of the multi-channel carrier signal, and compares the multi-channel frequency band information with a preset interference frequency band through a matching circuit. When the multi-channel frequency band information matches the interference frequency band, the multi-channel carrier signal is classified into a first type of carrier signal and a second type of carrier signal according to the interference frequency band. After determining the first type of carrier signal, a low-noise amplifier is used as an amplification channel, and the first type of carrier signal and the second type of carrier signal are input into the low-noise amplifier for amplification processing, and the carrier signal in the target frequency band of the multi-channel carrier signal is subjected to a preset amplification processing, and then the first type of carrier signal is filtered through a multiplex filter including multiple filtering channels, specifically, at least one filtering channel corresponding to the interference frequency band is controlled to filter out The signal in the interference frequency band of the corresponding first type carrier signal is obtained to obtain a filtered signal. After that, the signal processing device performs corresponding phase shift processing on the filtered signal and the second type carrier signal respectively through a phase shifter, so that the phase difference between the filtered signal and the signals of any two frequency bands in the second type carrier signal is within a preset target phase difference range, and controls the corresponding switch unit whose signal frequency band is in the target frequency band to be turned on, so as to output the filtered signal and the signal in the target frequency band of the second type carrier signal, and then combines the output signals in the target frequency band through a multi-frequency device to obtain a combined signal. The signal processing device outputs the processed combined signal to a radio frequency communication device, so that a radio frequency communication device such as a radio frequency chip receives the combined signal.

As shown in FIG8 , the embodiment of the present disclosure further provides a communication device 500, and the communication device 500 includes a radio frequency communication device 300, a signal transceiver device 400, and a signal processing device 200. In an exemplary embodiment, the signal processing device 200 is communicatively connected with the radio frequency front-end device and the signal transceiver device 400. Among them, the signal processing device is used to execute any signal processing method provided in the specification of the present disclosure, wherein the radio frequency communication device is used to output a multi-channel carrier signal to the signal processing device, and the signal transceiver device is used to receive the combined signal generated by the signal processing device. Or, the signal transceiver device is used to output a multi-channel carrier signal to the signal processing device, and the radio frequency communication device is used to receive the combined signal generated by the signal processing device. In an exemplary embodiment, the communication device 500 includes but is not limited to a mobile communication device and a communication base station, and the communication device is used to implement communication interaction with an external device.

In an exemplary embodiment, the signal processing device may be any signal processing device provided in the embodiments of the present disclosure.

In an exemplary embodiment, the radio frequency communication device is, for example, a radio frequency chip for outputting carrier signals and obtaining received signals, the signal transceiver device is, for example, an antenna, and the signal processing device is, for example, a radio frequency front-end device. The radio frequency communication device can output communication signals to an external device through the signal processing device and the signal transceiver device, and the communication signal output by the external device to the communication device can be transmitted to the radio frequency communication device through the signal transceiver device and the signal processing device, thereby realizing communication interaction between the communication device and the external device, and the signal processing device is specifically used to amplify and filter the signal transmitted from the radio frequency communication device to the signal transceiver device or from the signal transceiver device to the radio frequency communication device, thereby realizing the integration of multi-channel carrier signal transmission, eliminating the interference between carrier signals when multiple carrier signals are transmitted simultaneously, and improving the filtering performance of the signal processing device.

A person of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional modules/units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware embodiment, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer or a computer system. On machine-readable media, computer-readable media may include computer storage media (or non-transitory media) and communication media (or temporary media). As known to those of ordinary skill in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory media, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. In addition, it is known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

The embodiments of the present disclosure provide a signal processing method, a signal processing device, and a communication device, which are intended to integrate the transmission of multiple carrier signals, eliminate the interference between the carrier signals when the multiple carrier signals are transmitted simultaneously, and improve the filtering performance of the signal processing device. In summary, the embodiments of the present disclosure provide a signal processing method, a signal processing device, and a communication device, and the signal processing method includes: when receiving multiple carrier signals, obtaining the multiple frequency band information of the multiple carrier signals, and then when the multiple frequency band information matches the preset interference frequency band, classifying the multiple carrier signals according to the interference frequency band to obtain a first type of carrier signal and a second type of carrier signal, wherein the first type of carrier signal is at least two carrier signals whose signal frequency bands interfere with each other in the multiple carrier signals, and then filtering the first type of carrier signal to obtain a filtered signal; generating a combined signal according to the filtered signal and the second type of carrier signal, thereby realizing the integration of the transmission of multiple carrier signals, eliminating the interference between the carrier signals when the multiple carrier signals are transmitted simultaneously, and improving the filtering performance of the signal processing device.

It should be understood that the term "and/or" used in this disclosure and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

The serial numbers of the embodiments of the present disclosure are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present disclosure, and these modifications or replacements should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims (12)

1. A signal processing method, comprising:

   When receiving multi-channel carrier signals, obtaining multi-channel frequency band information of the multi-channel carrier signals;

   When the multi-channel frequency band information matches the preset interference frequency band, the multi-channel carrier signals are classified according to the interference frequency band to obtain a first type of carrier signal and a second type of carrier signal, wherein the first type of carrier signal is at least two carrier signals in the multi-channel carrier signals whose signal frequency bands interfere with each other;

   Performing filtering on the first type of carrier signal to obtain a filtered signal;

   A combined signal is generated according to the filtered signal and the second type of carrier signal.
2. The signal processing method according to claim 1, wherein the filtering the first type of carrier signal to obtain a filtered signal comprises:

   Determine an overlapping portion of signal frequency bands of at least two of the first-category carrier signals as an interference frequency band;

   At least one signal in the first type of carrier signal that is in the interference frequency band is filtered out.
3. The signal processing method according to claim 2, wherein filtering out a signal in the interference frequency band from at least one of the first-category carrier signals comprises:

   Determining a specific sub-frequency band that matches the interfering frequency band;

   Filter out the signal in the corresponding specific sub-frequency band.
4. The signal processing method according to claim 2, wherein before determining the overlapping portion of the signal frequency bands of at least two of the first-type carrier signals as the interference frequency band, it also includes:

   Determine a target frequency band according to the multi-channel frequency band information;

   A preset amplification process is performed on the carrier signals in the target frequency band among the multiple carrier signals.
5. The signal processing method according to any one of claims 1 to 4, wherein generating a combined signal according to the filtered signal and the second type carrier signal comprises:

   Performing corresponding phase shift processing on the filtered signal and the second type carrier signal respectively, so that the phase difference between the filtered signal and the signal of any two frequency bands in the second type carrier signal is within a preset target phase difference range;

   The filtered signal after the phase shift processing is combined with the second type of carrier signal to obtain the combined signal.
6. A signal processing device, comprising:

   An information acquisition module, configured to acquire multi-channel frequency band information of the multi-channel carrier signals when receiving the multi-channel carrier signals;

   A signal classification module is configured to classify the multi-channel carrier signals according to the interference frequency band when the multi-channel frequency band information matches a preset interference frequency band, to obtain a first type of carrier signal and a second type of carrier signal, wherein the first type of carrier signal is at least two carrier signals in the multi-channel carrier signals whose signal frequency bands interfere with each other;

   A signal filtering module, configured to filter the first type of carrier signal to obtain a filtered signal;

   The signal combining module is configured to generate a combined signal according to the filtered signal and the second type carrier signal.
7. The signal processing device according to claim 6, wherein the signal filtering module comprises a multiplexer, and the multiplexer is provided with multiple filtering channels corresponding to multiple signal frequency bands respectively;

   The signal filtering module performs filtering processing on the first type of carrier signal to obtain a filtered signal, including:

   Determine an overlapping portion of signal frequency bands of at least two of the first-type carrier signals as an interference frequency band;

   Control at least one of the filter channels corresponding to the interference frequency band to filter out the signal in the interference frequency band in the corresponding first-category carrier signal.
8. The signal processing device according to claim 7, wherein the filtering channel is provided with a plurality of notch filters respectively used to filter out different specific sub-band signals and a gating switch used to connect to the plurality of notch filters;

   The controlling at least one filter channel corresponding to the interference frequency band to filter out the signal in the interference frequency band in the corresponding first type of carrier signal includes:

   In at least one of the filtering channels corresponding to the interference frequency band, determining a target notch filter that matches the corresponding specific sub-frequency band with the interference frequency band;

   The target notch filter is controlled to work by the gating switch, so that the target notch filter filters out the signal in the corresponding specific sub-frequency band.
9. The signal processing device according to claim 6, wherein the signal filtering module further comprises a plurality of amplification channels respectively arranged corresponding to a plurality of signal frequency bands, and the amplification channels are connected to the filtering channels corresponding to the signal frequency bands;

   Before determining the overlapping portion of the signal frequency bands of at least two of the first-type carrier signals as the interference frequency band, the method further includes:

   Determine a target frequency band according to the multi-channel frequency band information;

   The amplification channel corresponding to the target frequency band is controlled to perform a preset amplification process on the carrier signals in the target frequency band among the multiple carrier signals.
10. The signal processing device according to any one of claims 6 to 9, wherein the signal combining module comprises a frequency multiplier and a plurality of phase shifters respectively arranged corresponding to the plurality of signal frequency bands, and the generating of the combined signal according to the filtered signal and the second type carrier signal comprises:

    Controlling the phase shifter corresponding to the signal frequency band to perform corresponding phase shift processing on the filtered signal and the second type carrier signal respectively, so that the phase difference between the filtered signal and the signal of any two frequency bands of the second type carrier signal is within a preset target phase difference range;

    The frequency multiplier is controlled to combine the filtered signal after the phase shift processing with the second type of carrier signal to obtain the combined signal.
11. The signal processing device according to any one of claims 6 to 9, wherein the signal processing device comprises an integrated package matching circuit, a radio frequency power amplifier, a low noise amplifier, a multiplex filter, a phase shifter, a switch unit and a multi-frequency device.
12. A communication device, comprising a radio frequency communication device, a signal transceiver device, and a signal processing device connected to the radio frequency communication device and the signal transceiver device, wherein the signal processing device is used to execute the signal processing method according to any one of claims 1 to 5;

    Wherein, the radio frequency communication device is used to output the multi-channel carrier signal to the signal processing device, and the signal transceiver device is used to receive the combined signal generated by the signal processing device; or

    The signal transceiver device is used to output the multi-channel carrier signal to the signal processing device, and the radio frequency communication device is used to receive the combined signal generated by the signal processing device.