Near Field Communication Module, Electronic Device, and Near Field Communication Method

Abstract

An embodiment of the present application provides a near-field communication module, an electronic device, and a near-field communication method, including an antenna for transmitting communication signals; an input processing module connected to the antenna; and a digital signal processing module connected to the input processing module, configured to identify the frequency and bandwidth of interference signals in digital signals, generate frequency configuration information according to the frequency of the interference signals, generate bandwidth configuration information according to the bandwidth of the interference signals, and further configured to send the frequency configuration information and the bandwidth configuration information to the input processing module; the input processing module is configured to adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signals in the communication signals. The embodiment of the present application proposes a solution that can dynamically capture the interference signal source and perform targeted filtering for the signal interference problem of the near-field communication module.

Description

Technical Field

[0001] This application belongs to the field of wireless communication technologies, and particularly relates to a near-field communication module, an electronic device, and a near-field communication method. Background Art

[0002] Currently, with the broadening of mobile phone functions and the deepening of user requirements, near-field communication modules with large bandwidths are required in electronic devices such as smartphones. However, the narrow-band far-field communication modules of the original mobile phones will cause signal interference to the near-field communication modules. Summary of the Invention

[0003] This application proposes a near-field communication module, an electronic device, and a near-field communication method, aiming to propose a solution that can dynamically capture interference signal sources and perform targeted filtering for the signal interference problem of the near-field communication module.

[0004] In a first aspect, an embodiment of this application provides a near-field communication module, including

[0005] An antenna for transmitting communication signals;

[0006] An input processing module connected to the antenna for processing the communication signal and outputting a digital signal;

[0007] A digital signal processing module connected to the input processing module for identifying the frequency and bandwidth of interference signals in the digital signal, generating frequency configuration information according to the frequency of the interference signal, and generating bandwidth configuration information according to the bandwidth of the interference signal; the digital signal processing module is further configured to send the frequency configuration information and the bandwidth configuration information to the input processing module;

[0008] The input processing module is configured to receive the frequency configuration information and the bandwidth configuration information, and adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signals in the communication signal;

[0009] A modulation and demodulation module connected to the input processing module for modulating and demodulating the digital signal.

[0010] It can be seen that in this example, since the digital signal processing module of the near-field communication module can identify the frequency and bandwidth of the interference signal, generate frequency configuration information according to the frequency of the interference signal, generate bandwidth configuration information according to the bandwidth of the interference signal, and send the frequency configuration information and the bandwidth configuration information to the input processing module, so that the input processing module can adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal. This solution does not require adding other hardware devices and does not require adjusting the timing of the near-field communication module. It dynamically captures the interference signal source by a pure software method of the digital signal processing module for targeted filtering, and does not require any restrictions on the antenna isolation degree between the near-field communication module and other chips on electronic devices such as mobile phones, greatly improving the operability of the near-field communication module on electronic devices and reducing the entry threshold.

[0011] In a second aspect, an embodiment of the present application provides an electronic device, including a near-field communication module and a far-field communication module;

[0012] The near-field communication module includes:

[0013] An antenna for transmitting communication signals;

[0014] An input processing module connected to the antenna for processing the communication signal and outputting a digital signal;

[0015] A digital signal processing module connected to the input processing module for identifying the frequency and bandwidth of the interference signal in the digital signal, generating frequency configuration information according to the frequency of the interference signal, and generating bandwidth configuration information according to the bandwidth of the interference signal; the digital signal processing module is further configured to send the frequency configuration information and the bandwidth configuration information to the input processing module;

[0016] The input processing module is configured to receive the frequency configuration information and the bandwidth configuration information, and adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal;

[0017] A modulation and demodulation module connected to the input processing module for modulating and demodulating the digital signal.

[0018] It can be seen that in this example, since the digital signal processing module of the near field communication module can identify the frequency and bandwidth of the interference signal, generate frequency configuration information according to the frequency of the interference signal, generate bandwidth configuration information according to the bandwidth of the interference signal, and send the frequency configuration information and the bandwidth configuration information to the input processing module, so that the input processing module can adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal. This solution does not require additional hardware devices and does not require adjustment of the timing of the near field communication module. By using a pure software method of the digital signal processing module to dynamically capture the interference signal source for targeted filtering, there is no need to impose any restrictions on the antenna isolation degree between the near field communication module and other chips on electronic devices such as mobile phones, greatly improving the operability of the near field communication module on electronic devices and reducing the entry threshold.

[0019] In a third aspect, an embodiment of the present application provides a near field communication method applied to an electronic device. The electronic device includes a near field communication module and a far field communication module. The near field communication module includes an antenna, an input processing module, a digital signal processing module, and a modulation and demodulation module;

[0020] The antenna is connected to the input processing module, and the input processing module is connected to the digital signal processing module and the modulation and demodulation module;

[0021] The method includes:

[0022] Transmitting a communication signal through the antenna;

[0023] Processing the communication signal through the input processing module and then outputting a digital signal;

[0024] Identifying the frequency and bandwidth of the interference signal in the digital signal through the digital signal processing module, generating frequency configuration information according to the frequency of the interference signal, generating bandwidth configuration information according to the bandwidth of the interference signal; and sending the frequency configuration information and the bandwidth configuration information to the input processing module;

[0025] Receiving the frequency configuration information and the bandwidth configuration information through the input processing module, and adjusting the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal;

[0026] Modulating and demodulating the digital signal through the modulation and demodulation module.

[0027] It can be seen that in this example, since the digital signal processing module of the near field communication module can identify the frequency and bandwidth of the interference signal, generate frequency configuration information according to the frequency of the interference signal, generate bandwidth configuration information according to the bandwidth of the interference signal, and send the frequency configuration information and the bandwidth configuration information to the input processing module. As a result, the input processing module can adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal. This solution does not require additional hardware devices and does not require adjustment of the timing of the near field communication module. By using a pure software method of the digital signal processing module to dynamically capture the interference signal source for targeted filtering, there is no need to impose any restrictions on the antenna isolation degree between the near field communication module and other chips in electronic devices such as mobile phones, which greatly improves the operability of the near field communication module in electronic devices and reduces the entry threshold.

[0028] In a fourth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a near field communication module, a far field communication module, and one or more programs. The near field communication module includes an antenna, an input processing module, a digital signal processing module, and a modulation and demodulation module; the antenna is connected to the input processing module, and the input processing module is connected to the digital signal processing module and the modulation and demodulation module;

[0029] wherein, the one or more programs are stored in the memory and are configured to be executed by the processor, and the programs include instructions for performing the steps in any method of the third aspect of the embodiments of the present application.

[0030] In a fifth aspect, an embodiment of the present application provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes some or all of the steps described in any method of the third aspect of the embodiments of the present application.

[0031] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, and wherein the computer program enables a computer to execute some or all of the steps described in any method of the third aspect of the embodiments of the present application.

[0032] In a seventh aspect, an embodiment of the present application provides a computer program, wherein the computer program is operable to enable a computer to execute some or all of the steps described in any method of the third aspect of the embodiments of the present application. This computer program can be a software installation package. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0034] Figure 1a It is a schematic diagram of measuring distance using the time of flight of radio signals provided by an embodiment of the present application;

[0035] Figure 1b It is a schematic diagram of signal transmission provided by an embodiment of the present application;

[0036] Figure 1c It is a schematic diagram of the proportion of signal bandwidth in Fourier transform provided by an embodiment of the present application;

[0037] Figure 1d It is a schematic diagram of each pulse of a UWB signal provided by an embodiment of the present application;

[0038] Figure 1e It is a schematic diagram of a broadband noise signal provided by an embodiment of the present application;

[0039] Figure 1f It is a schematic diagram of the frequencies of ch5 and ch9 provided by an embodiment of the present application;

[0040] Figure 1g It is a schematic diagram of the supported frequency bands of different mobile phone systems provided by an embodiment of the present application;

[0041] Figure 2a It is a schematic diagram of the structure of a near-field communication module 10 provided by an embodiment of the present application;

[0042] Figure 2b It is another schematic diagram of the structure of a near-field communication module 10 provided by an embodiment of the present application;

[0043] Figure 2c It is another schematic diagram of the structure of a near-field communication module 10 provided by an embodiment of the present application;

[0044] Figure 2d It is another schematic diagram of the structure of a near-field communication module 10 provided by an embodiment of the present application;

[0045] Figure 2e It is another schematic diagram of the structure of a near-field communication module 10 provided by an embodiment of the present application;

[0046] Figure 2f It is another schematic diagram of the structure of a near-field communication module 10 provided by an embodiment of the present application;

[0047] Figure 2g It is a waveform diagram of an interference signal with a center frequency of -0.1 GHz provided by an embodiment of the present application;

[0048] Figure 2h It is one provided by an embodiment of the present application Figure 2b Schematic diagram of waveform amplification of the interference signal in;

[0049] Figure 2i It is a waveform diagram of bandwidth configuration information with a bandwidth of 10 MHz provided by an embodiment of the present application;

[0050] Figure 2j It is a waveform diagram of bandwidth configuration information with a bandwidth of 50 MHz provided by an embodiment of the present application;

[0051] Figure 2k It is a waveform diagram of bandwidth configuration information with a bandwidth of 100 MHz provided by an embodiment of the present application;

[0052] Figure 3 It is a schematic structural diagram of an electronic device 1 provided by an embodiment of the present application;

[0053] Figure 4 It is a schematic flowchart of a near-field communication method provided by an embodiment of the present application;

[0054] Figure 5 It is a block diagram of functional units of a near-field communication device 5 provided by an embodiment of the present application;

[0055] Figure 6 It is a block diagram of functional units of a near-field communication device 6 provided by an embodiment of the present application. Detailed implementation manners

[0056] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0057] In the description, claims, and the above-mentioned drawings of this application, terms such as "first" and "second" are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0058] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0059] Traditional UWB positioning is used in industrial sites such as mines and warehouses. Its main application scenarios are to monitor employees and goods, such as Figure 1a As shown, the UWB ranging principle indoors is the same as the GNSS satellite positioning principle. The distance is calculated using the time of flight of radio signals. In the figure, PRI represents the pulse repetition interval, TOA represents the signal flight time, TX represents the signal transmitter, and RX represents the signal receiver.

[0060] Traditional UWB ranging is identified through pulse signals and has a good inhibitory effect on multipath interference, such as Figure 1b As shown, Direct represents the direct transmission of the signal without refraction, Directpath represents single-path transmission, and Multipath represents multipath transmission.

[0061] UWB is an ultra-wideband pulse signal. The shorter the duration of the pulse signal, the easier it is to be identified, and the wider the spectral resources occupied after Fourier transform. As Figure 1c shown, in Fourier transform, the stronger the periodicity of the signal, the smaller the bandwidth occupied on the spectrum. The UWB signal is a pulse of one period, so the bandwidth on the spectrum will be fully occupied to 100%.

[0062] As Figure 1d shown, each pulse of the UWB signal is similar to a sine wave within one period. By having different intervals between each pulse, the spectrum is similar to the broadband noise signal as Figure 1e shown.

[0063] The mobile phone will have both a cellular communication module and a UWB communication module. The maximum transmit power of the cellular communication module is 23 dBm, and the maximum transmit power of the UWB communication module is about -14 dBm. Generally, the cellular communication module will interfere with the UWB communication module, while the UWB communication module cannot interfere with the cellular communication module.

[0064] The UWB frequency bands are ch5 and ch9 as Figure 1f shown, with center frequencies of 6489.6 MHz and 7987.2 MHz respectively, and a working bandwidth of 500 MHz.

[0065] The cellular and WIFI frequency bands of the mobile phone refer to the export version of the Compass 2 mobile phone, which has a relatively comprehensive frequency band coverage of the frequency band ranges of global operators. The specific supported frequency bands are as Figure 1g shown. GSM represents the Global System for Mobile Communications, WCDMA represents Wideband Code Division Multiple Access, corresponding to 3G cellular network communication, FDD-LTE represents Frequency Division Duplexing - Long Term Evolution technology, corresponding to 4G mobile communication systems, and 5G NR represents 5G New Radio communication.

[0066] Currently, the Ultra-Wideband (UWB) chip operates at 6.5 GHz and 8 GHz, with a working bandwidth of 500 MHz and a maximum transmit power of about -14 dBm. The second harmonic or third harmonic or third-order intermodulation components of the cellular module are very likely to fall within or beside the UWB band, causing great interference to the communication of the UWB chip. For example, N77 operates in the 3.3 GHz frequency band, and its second harmonic of 6.6 GHz will fall within the UWB band.

[0067] Regarding the interference of cellular signals, a filter is added in the UWB chip to suppress the influence of cellular signals. However, since the interference signal source is unknown, its energy magnitude is unknown, its carrier frequency is unknown, and its bandwidth is unknown, it is necessary to detect and judge the interference source at the UWB end and then adjust the filter to completely filter out the influence of cellular signals.

[0068] In view of the above technical background problems, the present application proposes a near-field communication module, an electronic device, and a near-field communication method, which will be described in detail below with reference to the accompanying drawings.

[0069] Please refer to Figure 2a , Figure 2a which is a schematic structural diagram of a near-field communication module 10 provided by an embodiment of the present application. The near-field communication module 10 includes:

[0070] An antenna 100 for transmitting communication signals;

[0071] An input processing module 200, connected to the antenna 100, for processing the communication signals and outputting digital signals;

[0072] A digital signal processing module 300, connected to the input processing module 200, is configured to identify the frequency and bandwidth of interference signals in the digital signal, generate frequency configuration information according to the frequency of the interference signal, and generate bandwidth configuration information according to the bandwidth of the interference signal; the digital signal processing module 300 is further configured to send the frequency configuration information and the bandwidth configuration information to the input processing module;

[0073] The input processing module 200 is configured to receive the frequency configuration information and the bandwidth configuration information, and adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module 200 filters the interference signals in the communication signal;

[0074] A modulation and demodulation module 400, connected to the input processing module 200, is configured to modulate and demodulate the digital signal.

[0075] Wherein, the near-field communication module 10 includes an ultra-wideband UWB communication module.

[0076] Wherein, the interference signal includes the transmission signal of the far-field communication module. The bandwidth of the near-field communication module 10 is greater than the bandwidth of the far-field communication module.

[0077] Wherein, the far-field communication module 10 includes any one of the following: a cellular communication module, a wireless high-fidelity Wi-Fi communication module. For example, the third harmonic of a 2.4 GHz Wi-Fi6 signal and the components at carrier frequencies above 6 GHz where the Wi-Fi6 signal is located can all use this solution, and it will not cause any interference to the in-band UWB signal.

[0078] In a possible example, as Figure 2b shown, the input processing module 200 includes a low-noise amplification module 210, a mixing module 220, a filtering module 230, and an analog-to-digital conversion module 240;

[0079] The antenna 100 is connected to the low-noise amplification module 210, the low-noise amplification module 210 is connected to the mixing module 220, the mixing module 220 is connected to the filtering module 230, the filtering module 230 is connected to the analog-to-digital conversion module 240, the analog-to-digital conversion module 240 is respectively connected to the digital signal processing module 300 and the modulation and demodulation module 400, and the digital signal processing module 300 is respectively connected to the mixing module 220 and the filtering module 230;

[0080] The digital signal processing module 300 is configured to send the frequency configuration information to the mixing module 220 and send the bandwidth configuration information to the filtering module 230;

[0081] The mixing module 220 is configured to receive the frequency configuration information, and adjust the carrier frequency of the mixing module according to the frequency configuration information to correspond to the frequency of the interference signal, so that the center frequency of the output signal of the mixing module 220 corresponds to the frequency of the interference signal;

[0082] The filtering module 230 is configured to receive the bandwidth configuration information, and configure the filtering bandwidth of the filtering module 230 according to the bandwidth configuration information to correspond to the bandwidth of the interference signal, so as to filter out the interference signal.

[0083] Wherein, the low-noise amplification module 210 is configured to perform low-noise amplification processing on the communication signal. The analog-to-digital conversion module 240 is configured to convert an analog signal into a digital signal.

[0084] It can be seen that in this example, the mixing module 220 and the filtering module 230 of the input processing module 200 can be updated through configuration so that the input processing module 200 has the ability to filter out interference signals.

[0085] In this possible example, as Figure 2c shown, the low-noise amplification module 210 includes a low-noise amplifier 211, and the low-noise amplifier 211 is connected to the antenna 100 and is configured to perform low-noise amplification processing on the communication signal.

[0086] In a possible example, as Figure 2d shown, the mixing module 220 includes a local oscillator 221, a co-component multiplier 222 and a quadrature-component multiplier 223, the filtering module 230 includes a co-component filter 231 and a quadrature-component filter 232, and the analog-to-digital conversion module 240 includes a co-component analog-to-digital converter 241 and a quadrature-component analog-to-digital converter 242;

[0087] The local oscillator 221 is connected to the co-component multiplier 222, the quadrature-component multiplier 223 and the digital signal processing module 300, the low-noise amplification module 210 is connected to the co-component multiplier 222 and the quadrature-component multiplier 223, the co-component multiplier 222 is connected to the co-component filter 231, the co-component filter 231 is connected to the co-component analog-to-digital converter 241, the quadrature-component multiplier 223 is connected to the quadrature-component filter 232, the quadrature-component filter 232 is connected to the quadrature-component analog-to-digital converter 242, the co-component analog-to-digital converter 241 and the quadrature-component analog-to-digital converter 242 are connected to the digital signal processing module 300 and the modulation / demodulation module 400, and the digital signal processing module 300 is connected to the co-component filter 231 and the quadrature-component filter 232;

[0088] The local oscillator 221 is used to receive the frequency configuration information, and adjust the carrier frequency of the local oscillator 221 according to the frequency configuration information to correspond to the frequency of the interference signal. The in-phase component multiplier 222 is used to output an in-phase component mixing signal with a center frequency corresponding to the frequency of the interference signal, and the quadrature component multiplier 223 is used to output a quadrature component mixing signal with a center frequency corresponding to the frequency of the interference signal;

[0089] The in-phase component filter 231 is used to receive the bandwidth configuration information, and filter the in-phase component mixing signal to filter out the in-phase component of the interference signal; the quadrature component filter 232 is used to receive the bandwidth configuration information, and filter the quadrature component mixing signal to filter out the quadrature component of the interference signal.

[0090] Wherein, the in-phase component analog-to-digital converter and the quadrature component analog-to-digital converter are used to convert the type of the signal into a digital signal.

[0091] Wherein, the in-phase component filter 231 and the quadrature component filter 232 may be notch filters. A notch filter is a special band-stop filter, and its stopband has only one frequency point in the ideal case, and it is also called a point-stop filter. This kind of filter is mainly used to eliminate interference at a specific frequency.

[0092] Wherein, the modem 410 is used to receive the in-phase component intermediate frequency signal that filters out the in-phase component of the interference signal, and receive the quadrature component intermediate frequency signal that filters out the quadrature component of the interference signal, and synthesize the in-phase component intermediate frequency signal and the quadrature component intermediate frequency signal into a complex intermediate frequency signal.

[0093] Wherein, the mixer composed of the in-phase component filter 231, the quadrature component filter 232, and the local oscillator 221 includes an IQ mixer.

[0094] It can be seen that in this example, the input processing module adopts a dual-channel solution of in-phase component and quadrature component modulation, which is beneficial to reducing the module size and improving the anti-interference ability.

[0095] In a possible example, as Figure 2e shown, the mixing module 220 includes a multiplier 224 and a local oscillator 221, the filtering module 230 includes a filter 233, and the analog-to-digital conversion module 240 includes an analog-to-digital converter 243;

[0096] The local oscillator 221 is connected to the multiplier 224, the low-noise amplification module 210 is connected to the multiplier 224, the multiplier 224 is connected to the filter 233, the filter 233 is connected to the analog-to-digital converter 243, the analog-to-digital converter 243 is connected to the digital signal processing module 300 and the modulation and demodulation module 400, and the digital signal processing module 300 is connected to the local oscillator 221;

[0097] The local oscillator 221 is used to receive the frequency configuration information, and adjust the carrier frequency of the local oscillator 221 corresponding to the frequency of the interference signal according to the frequency configuration information. The multiplier 224 is used to output a mixed-frequency signal with a center frequency corresponding to the frequency of the interference signal;

[0098] The filter 233 is used to receive the bandwidth configuration information, and filter the mixed-frequency signal with a center frequency corresponding to the frequency of the interference signal to filter out the interference signal.

[0099] It can be seen that in this example, the input processing module can use a single-channel signal processing circuit to achieve targeted elimination of interference signals.

[0100] In a possible example, as Figure 2f shown, the digital signal processing module 300 includes a digital signal processor 310, and the modulation and demodulation module 400 includes a modem 410.

[0101] Among them, the digital signal processor 310 can be a dedicated DSP chip, and the modem 410 can be a modulator and a demodulator in a dedicated broadband far-field communication chip.

[0102] In a possible example, the near-field communication module 10 includes an ultra-wideband UWB communication module.

[0103] In specific implementation, after the digital signal processing module 300 identifies the frequency and bandwidth of the interference signal, it can generate frequency configuration information according to the frequency of the interference signal, and generate bandwidth configuration information according to the bandwidth of the interference signal.

[0104] For example, assume that the near-field communication module 10 is a UWB chip, the interference signal is a cellular signal, the operating frequency of the UWB chip is 6.5 GHz, and when there is no interference signal, the local oscillator 221 is configured to 6.5 GHz. After the interference signal occurs,

[0105] If it is found that the frequency where the interference signal is located in the FFT spectrum at the back end of the in-phase component analog-to-digital converter 241 and the quadrature component analog-to-digital converter 242 is 0.2 GHz, it can be known that the carrier frequency of the interference signal is 6.7 GHz, and the local oscillator 221 needs to be configured to 6.7 GHz.

[0106] As Figure 2g shown, if it is found that the center frequency where the interference signal is located in the FFT spectrum at the back end of the in-phase component analog-to-digital converter 241 and the quadrature component analog-to-digital converter 242 is -0.1 GHz (there will be a narrowband LTE signal interference within the normal UWB signal band), then it can be known that the carrier frequency of the interference signal is 6.4 GHz, and the local oscillator 221 needs to be configured to 6.4 GHz.

[0107] As Figure 2h shown, after Figure 2g amplification, it can be seen that the interference source of the LTE signal is not an ordinary continuous wave (CW) signal, but an LTE modulated signal with a certain bandwidth. It can be seen from the following figure that it is an LTE signal with a bandwidth of approximately 4 MHz. Therefore, the digital signal processing module 300 can set the bandwidth configuration information to 4 MHz and send it to the in-phase component filter 231 and the quadrature component filter 232, prompting the in-phase component filter 231 and the quadrature component filter 232 to filter the in-phase component and the quadrature component of the 4-MHz bandwidth LTE signal respectively.

[0108] It should be noted that the bandwidth set in the bandwidth configuration information can be 10 MHz, 50 MHz to 100 MHz. As Figure 2i shown, it is the waveform diagram of the bandwidth configuration information with a bandwidth of 10 MHz. As Figure 2j shown, it is the waveform diagram of the bandwidth configuration information with a bandwidth of 50 MHz. As Figure 2k shown, it is the waveform diagram of the bandwidth configuration information with a bandwidth of 100 MHz.

[0109] It can be seen that in this example, the digital signal processing module 300 can dynamically adjust for different interference sources of interference signals such as cellular signals, avoiding interference to low-power near-field communication signals such as UWB signals from high-power other far-field communication signals on mobile phones.

[0110] It can be seen that in the embodiment of the present application, since the digital signal processing module of the near field communication module can identify the frequency and bandwidth of the interference signal, generate frequency configuration information according to the frequency of the interference signal, generate bandwidth configuration information according to the bandwidth of the interference signal, and send the frequency configuration information and the bandwidth configuration information to the input processing module, the input processing module can adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal. This solution does not require additional hardware devices and does not require adjustment of the timing of the near field communication module. By using a pure software method of the digital signal processing module to dynamically capture the interference signal source for targeted filtering, there is no need to impose any restrictions on the antenna isolation degree between the near field communication module and other chips on electronic devices such as mobile phones, greatly improving the operability of the near field communication module on electronic devices and reducing the entry threshold.

[0111] Please refer to Figure 3 , Figure 3 which is a schematic structural diagram of an electronic device 1 provided by an embodiment of the present application. The electronic device 1 includes a near field communication module 10 and a far field communication module 20;

[0112] The near field communication module 10 includes:

[0113] An antenna 100 for transmitting communication signals;

[0114] An input processing module 200 connected to the antenna 100 for processing the communication signal and outputting a digital signal;

[0115] A digital signal processing module 300 connected to the input processing module 200 for identifying the frequency and bandwidth of the interference signal in the digital signal, generating frequency configuration information according to the frequency of the interference signal, and generating bandwidth configuration information according to the bandwidth of the interference signal; the digital signal processing module 300 is further configured to send the frequency configuration information and the bandwidth configuration information to the input processing module;

[0116] The input processing module 200 is configured to receive the frequency configuration information and the bandwidth configuration information, and adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module 200 filters the interference signal in the communication signal;

[0117] A modulation and demodulation module 400 connected to the input processing module 200 for modulating and demodulating the digital signal.

[0118] Wherein, the electronic device 1 may be a terminal device such as a mobile phone, which is not uniquely limited herein.

[0119] It can be seen that in the embodiments of the present application, since the digital signal processing module of the near field communication module can identify the frequency and bandwidth of the interference signal, generate frequency configuration information according to the frequency of the interference signal, generate bandwidth configuration information according to the bandwidth of the interference signal, and send the frequency configuration information and the bandwidth configuration information to the input processing module, the input processing module can adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal. This solution does not require adding other hardware devices and does not require adjusting the timing of the near field communication module. By using a pure software method of the digital signal processing module to dynamically capture the interference signal source for targeted filtering, there is no need to impose any restrictions on the antenna isolation degree between the near field communication module and other chips on electronic devices such as mobile phones, greatly improving the operability of the near field communication module on electronic devices and reducing the entry threshold.

[0120] Please refer to Figure 4 , Figure 4 which is a schematic flowchart of a near field communication method provided by an embodiment of the present application, applied to an electronic device 1 as shown in Figure 2a . The present near field communication method includes the following operations.

[0121] Step 401, transmitting a communication signal through the antenna;

[0122] Step 402, processing the communication signal through the input processing module and outputting a digital signal;

[0123] Step 403, identifying the frequency and bandwidth of the interference signal in the digital signal through the digital signal processing module, generating frequency configuration information according to the frequency of the interference signal, generating bandwidth configuration information according to the bandwidth of the interference signal; and sending the frequency configuration information and the bandwidth configuration information to the input processing module;

[0124] Step 404, receiving the frequency configuration information and the bandwidth configuration information through the input processing module, and adjusting the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal;

[0125] Step 405, modulating and demodulating the digital signal through the modulation and demodulation module.

[0126] In a possible example, the input processing module includes a low noise amplification module, a mixing module, a filtering module, and an analog-to-digital conversion module;

[0127] The antenna is connected to the low-noise amplification module, the low-noise amplification module is connected to the mixing module, the mixing module is connected to the filtering module, the filtering module is connected to the analog-to-digital conversion module, the analog-to-digital conversion module is respectively connected to the digital signal processing module and the modulation and demodulation module, and the digital signal processing module is respectively connected to the mixing module and the filtering module; in the method,

[0128] The digital signal processing module is specifically configured to send the frequency configuration information to the mixing module and send the bandwidth configuration information to the filtering module;

[0129] The mixing module is configured to receive the frequency configuration information, and adjust the carrier frequency of the mixing module corresponding to the frequency of the interference signal according to the frequency configuration information, so that the center frequency of the output signal of the mixing module corresponds to the frequency of the interference signal;

[0130] The filtering module is configured to receive the bandwidth configuration information, and configure the filtering bandwidth of the filtering module corresponding to the bandwidth of the interference signal according to the bandwidth configuration information to filter out the interference signal.

[0131] In a possible example, the low-noise amplification module includes a low-noise amplifier, and the low-noise amplifier is connected to the antenna and is configured to perform low-noise amplification processing on the communication signal.

[0132] In a possible example, the mixing module includes a local oscillator, an in-phase component multiplier, and a quadrature component multiplier, the filtering module includes an in-phase component filter and a quadrature component filter, and the analog-to-digital conversion module includes an in-phase component analog-to-digital converter and a quadrature component analog-to-digital converter;

[0133] The local oscillator is respectively connected to the in-phase component multiplier, the quadrature component multiplier, and the digital signal processing module, the low-noise amplification module is respectively connected to the in-phase component multiplier and the quadrature component multiplier, the in-phase component multiplier is connected to the in-phase component filter, the in-phase component filter is connected to the in-phase component analog-to-digital converter, the quadrature component multiplier is connected to the quadrature component filter, the quadrature component filter is connected to the quadrature component analog-to-digital converter, the in-phase component analog-to-digital converter and the quadrature component analog-to-digital converter are respectively connected to the digital signal processing module, the in-phase component analog-to-digital converter and the quadrature component analog-to-digital converter are respectively connected to the modulation and demodulation module, and the digital signal processing module is respectively connected to the in-phase component filter and the quadrature component filter;

[0134] The local oscillator is configured to receive the frequency configuration information and adjust the carrier frequency of the local oscillator according to the frequency configuration information to correspond to the frequency of the interference signal. The in-phase component multiplier is configured to output an in-phase component mixing signal with a center frequency corresponding to the frequency of the interference signal. The quadrature component multiplier is configured to output a quadrature component mixing signal with a center frequency corresponding to the frequency of the interference signal.

[0135] The in-phase component filter is configured to receive the bandwidth configuration information and filter the in-phase component mixing signal to filter out the in-phase component of the interference signal. The quadrature component filter is configured to receive the bandwidth configuration information and filter the quadrature component mixing signal to filter out the quadrature component of the interference signal.

[0136] In a possible example, the mixing module includes a multiplier and a local oscillator, the filtering module includes a filter, and the analog-to-digital conversion module includes an analog-to-digital converter.

[0137] The local oscillator is connected to the multiplier, the low-noise amplification module is connected to the multiplier, the multiplier is connected to the filter, the filter is connected to the analog-to-digital converter, the analog-to-digital converter is respectively connected to the digital signal processing module and the modulation and demodulation module, and the digital signal processing module is connected to the local oscillator.

[0138] The local oscillator is configured to receive the frequency configuration information and adjust the carrier frequency of the local oscillator according to the frequency configuration information to correspond to the frequency of the interference signal. The multiplier is configured to output a mixing signal with a center frequency corresponding to the frequency of the interference signal.

[0139] The filter is configured to receive the bandwidth configuration information and filter the mixing signal with a center frequency corresponding to the frequency of the interference signal to filter out the interference signal.

[0140] In a possible example, the digital signal processing module includes a digital signal processor, and the modulation and demodulation module includes a modem.

[0141] In a possible example, the near-field communication module includes an ultra-wideband UWB communication module.

[0142] In a possible example, the interference signal includes a transmission signal of a far-field communication module.

[0143] In a possible example, the far-field communication module includes any one of the following: a cellular communication module, a wireless high-fidelity Wi-Fi communication module.

[0144] It can be seen that in the embodiment of the present application, since the digital signal processing module of the near-field communication module can identify the frequency and bandwidth of the interference signal, generate frequency configuration information according to the frequency of the interference signal, generate bandwidth configuration information according to the bandwidth of the interference signal, and send the frequency configuration information and the bandwidth configuration information to the input processing module, so that the input processing module can adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal. This solution does not require additional hardware devices and does not require adjustment of the timing of the near-field communication module. It dynamically captures the interference signal source by a pure software method of the digital signal processing module for targeted filtering, and does not require any restrictions on the antenna isolation degree between the near-field communication module and other chips on electronic devices such as mobile phones, greatly improving the operability of the near-field communication module on electronic devices and reducing the entry threshold.

[0145] The embodiment of the present application provides a near-field communication device, and the near-field communication device may be a mobile terminal. Specifically, the near-field communication device is used to execute the steps performed by the mobile terminal in the above near-field communication method. The near-field communication device provided by the embodiment of the present application may include modules corresponding to the respective steps.

[0146] The embodiment of the present application can divide the function modules of the near-field communication device according to the above method examples. For example, each function module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software function module. The division of modules in the embodiment of the present application is illustrative, and is only a logical function division. There may be other division methods in actual implementation.

[0147] In the case of dividing each function module corresponding to each function, Figure 5 shows a possible structural schematic diagram of the near-field communication device involved in the above embodiment. As Figure 5 shown, the near-field communication device 5 is applied to the electronic device 1 as shown in Figure 3 ; the device includes:

[0148] A transmission unit 30, configured to transmit a communication signal through the antenna;

[0149] An input processing unit 31, configured to process the communication signal through the input processing module and then output a digital signal;

[0150] An interference recognition unit 32 is configured to identify the frequency and bandwidth of the interference signal in the digital signal through the digital signal processing module, generate frequency configuration information according to the frequency of the interference signal, generate bandwidth configuration information according to the bandwidth of the interference signal; and send the frequency configuration information and the bandwidth configuration information to the input processing module;

[0151] A configuration update unit 33 is configured to receive the frequency configuration information and the bandwidth configuration information through the input processing module, and adjust the module capability configuration according to the frequency configuration information and the bandwidth configuration information, so that the adjusted input processing module filters the interference signal in the communication signal;

[0152] A modulation and demodulation unit 34 is configured to modulate and demodulate the digital signal through the modulation and demodulation module.

[0153] In a possible example, the input processing module includes a low-noise amplification module, a mixing module, a filtering module, and an analog-to-digital conversion module;

[0154] The antenna is connected to the low-noise amplification module, the low-noise amplification module is connected to the mixing module, the mixing module is connected to the filtering module, the filtering module is connected to the analog-to-digital conversion module, the analog-to-digital conversion module is respectively connected to the digital signal processing module and the modulation and demodulation module, and the digital signal processing module is respectively connected to the mixing module and the filtering module;

[0155] The digital signal processing module is configured to send the frequency configuration information to the mixing module and send the bandwidth configuration information to the filtering module;

[0156] The mixing module is configured to receive the frequency configuration information, and adjust the carrier frequency of the mixing module corresponding to the frequency of the interference signal according to the frequency configuration information, so that the center frequency of the output signal of the mixing module corresponds to the frequency of the interference signal;

[0157] The filtering module is configured to receive the bandwidth configuration information, and configure the filtering bandwidth of the filtering module corresponding to the bandwidth of the interference signal according to the bandwidth configuration information to filter out the interference signal.

[0158] In a possible example, the low-noise amplification module includes a low-noise amplifier, and the low-noise amplifier is connected to the antenna and is configured to perform low-noise amplification processing on the communication signal.

[0159] In a possible example, the mixing module includes a local oscillator, a co-component multiplier, and a quadrature-component multiplier, the filtering module includes a co-component filter and a quadrature-component filter, and the analog-to-digital conversion module includes a co-component analog-to-digital converter and a quadrature-component analog-to-digital converter;

[0160] The local oscillator is respectively connected to the co-component multiplier, the quadrature-component multiplier, and the digital signal processing module, the low-noise amplification module is respectively connected to the co-component multiplier and the quadrature-component multiplier, the co-component multiplier is connected to the co-component filter, the co-component filter is connected to the co-component analog-to-digital converter, the quadrature-component multiplier is connected to the quadrature-component filter, the quadrature-component filter is connected to the quadrature-component analog-to-digital converter, the co-component analog-to-digital converter and the quadrature-component analog-to-digital converter are respectively connected to the digital signal processing module, the co-component analog-to-digital converter and the quadrature-component analog-to-digital converter are respectively connected to the modulation and demodulation module, and the digital signal processing module is respectively connected to the co-component filter and the quadrature-component filter;

[0161] The local oscillator is configured to receive the frequency configuration information and adjust the carrier frequency of the local oscillator according to the frequency configuration information to correspond to the frequency of the interference signal. The co-component multiplier is configured to output a co-component mixed-frequency signal with a center frequency corresponding to the frequency of the interference signal, and the quadrature-component multiplier is configured to output a quadrature-component mixed-frequency signal with a center frequency corresponding to the frequency of the interference signal;

[0162] The co-component filter is configured to receive the bandwidth configuration information and filter the co-component mixed-frequency signal to filter out the co-component of the interference signal; the quadrature-component filter is configured to receive the bandwidth configuration information and filter the quadrature-component mixed-frequency signal to filter out the quadrature-component of the interference signal.

[0163] In a possible example, the mixing module includes a multiplier and a local oscillator, the filtering module includes a filter, and the analog-to-digital conversion module includes an analog-to-digital converter;

[0164] The local oscillator is connected to the multiplier, the low-noise amplification module is connected to the multiplier, the multiplier is connected to the filter, the filter is connected to the analog-to-digital converter, the analog-to-digital converter is respectively connected to the digital signal processing module and the modulation and demodulation module, and the digital signal processing module is connected to the local oscillator;

[0165] The local oscillator is used to receive the frequency configuration information, and adjust the carrier frequency of the local oscillator according to the frequency configuration information to correspond to the frequency of the interference signal. The multiplier is used to output a mixed-frequency signal whose center frequency corresponds to the frequency of the interference signal;

[0166] The filter is used to receive the bandwidth configuration information, and filter the mixed-frequency signal whose center frequency corresponds to the frequency of the interference signal to filter out the interference signal.

[0167] In a possible example, the digital signal processing module includes a digital signal processor, and the modulation and demodulation module includes a modem.

[0168] In a possible example, the near-field communication module includes an ultra-wideband UWB communication module.

[0169] In a possible example, the interference signal includes the transmission signal of the far-field communication module.

[0170] In a possible example, the far-field communication module includes any one of the following: a cellular communication module, a wireless high-fidelity Wi-Fi communication module.

[0171] In the case of adopting an integrated unit, a schematic structural diagram of another near-field communication device provided by an embodiment of the present application is as Figure 6 shown. In Figure 6 , the near-field communication device 6 includes: a processing module 60 and a communication module 61. The processing module 60 is used to control and manage the actions of the near-field communication device. For example, the steps executed by the transmission unit 30, the input processing unit 31, the interference identification unit 32, the configuration update unit 33, and the modulation and demodulation unit 34, and / or other processes for implementing the technologies described herein. The communication module 61 is used to support the interaction between the near-field communication device and other devices. As Figure 6 shown, the near-field communication device may further include a storage module 62, and the storage module 62 is used to store the program code and data of the near-field communication device.

[0172] Among them, the processing module 60 can be a processor or a controller. For example, it can be a Central Processing Unit (CPU), a general-purpose processor, a Digital Signal Processor (DSP), an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in connection with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on. The communication module 61 can be a transceiver, an RF circuit, a communication interface, or the like. The storage module 62 can be a memory.

[0173] Among them, all relevant contents of each scenario involved in the above method embodiments can be cited in the function descriptions of the corresponding functional modules, and will not be repeated here. Both the above near-field communication device 5 and the near-field communication device 6 can execute the steps Figure 4 performed by the electronic device in the near-field communication method shown above.

[0174] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of this application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more collections of available media. The available media can be magnetic media (such as floppy disks, hard disks, magnetic tapes), optical media (such as DVDs), or semiconductor media. The semiconductor media can be a solid-state drive.

[0175] The embodiments of this application also provide a computer storage medium. Among them, this computer storage medium stores a computer program for electronic data exchange, and this computer program enables a computer to execute part or all of the steps of any method recorded in the above method embodiments. The above computer includes an electronic device.

[0176] The embodiments of the present application also provide a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps of any of the methods described in the foregoing method embodiments. The computer program product may be a software installation package, and the computer includes an electronic device.

[0177] It should be understood that in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution is prior or subsequent. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0178] In several embodiments provided by the present application, it should be understood that the disclosed methods, devices, and systems can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical, or other forms.

[0179] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0180] In addition, in each embodiment of the present invention, the functional units can be integrated into one processing unit, or each unit can be physically included separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware, or in the form of a combination of hardware and software functional units.

[0181] The integrated unit implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs.

[0182] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions without departing from the spirit and scope of the present invention, and can make various changes and modifications, including combinations of the above different functions and implementation steps, including software and hardware implementation manners, all within the protection scope of the present invention.

Claims

1. A near - field communication module, characterized in that, it includes: An antenna for transmitting communication signals, and the communication signals are ultra - wideband pulse signals; An input processing module connected to the antenna, for processing the communication signals and outputting digital signals. The input processing module includes a low - noise amplification module, a mixing module, a filtering module, and an analog - to - digital conversion module; A digital signal processing module connected to the input processing module, for identifying the frequency and bandwidth of interference signals in the digital signals, generating frequency configuration information according to the frequency of the interference signals, and generating bandwidth configuration information according to the bandwidth of the interference signals; the digital signal processing module is also used to send the frequency configuration information to the mixing module, and send the bandwidth configuration information to the filtering module; In the input processing module, the mixing module is used to receive the frequency configuration information, and the filtering module is used to receive the bandwidth configuration information; And, the mixing module is also used to adjust the carrier frequency of the mixing module corresponding to the frequency of the interference signal according to the frequency configuration information, so that the center frequency of the output signal of the mixing module corresponds to the frequency of the interference signal; and, the filtering module is also used to configure the filtering bandwidth of the filtering module corresponding to the bandwidth of the interference signal according to the bandwidth configuration information to filter out the interference signal, so that the input processing module filters the interference signal in the communication signals; A modulation and demodulation module connected to the input processing module, for modulating and demodulating the digital signals.

2. The near - field communication module according to claim 1, characterized in that, The antenna is connected to the low - noise amplification module, the low - noise amplification module is connected to the mixing module, the mixing module is connected to the filtering module, the filtering module is connected to the analog - to - digital conversion module, the analog - to - digital conversion module is respectively connected to the digital signal processing module and the modulation and demodulation module, and the digital signal processing module is respectively connected to the mixing module and the filtering module.

3. The near - field communication module according to claim 2, characterized in that, The low - noise amplification module includes a low - noise amplifier, and the low - noise amplifier is connected to the antenna, for performing low - noise amplification processing on the communication signals.

4. The near - field communication module according to claim 2 or 3, characterized in that, The mixing module includes a local oscillator, a co - component multiplier, and a quadrature - component multiplier, the filtering module includes a co - component filter and a quadrature - component filter, and the analog - to - digital conversion module includes a co - component analog - to - digital converter and a quadrature - component analog - to - digital converter; The local oscillator is respectively connected to the in-phase component multiplier, the quadrature component multiplier, and the digital signal processing module. The low-noise amplification module is respectively connected to the in-phase component multiplier and the quadrature component multiplier. The in-phase component multiplier is connected to the in-phase component filter. The in-phase component filter is connected to the in-phase component analog-to-digital converter. The quadrature component multiplier is connected to the quadrature component filter. The quadrature component filter is connected to the quadrature component analog-to-digital converter. The in-phase component analog-to-digital converter and the quadrature component analog-to-digital converter are respectively connected to the digital signal processing module. The in-phase component analog-to-digital converter and the quadrature component analog-to-digital converter are respectively connected to the modulation and demodulation module. The digital signal processing module is respectively connected to the in-phase component filter and the quadrature component filter; The local oscillator is used to receive the frequency configuration information, and adjusts the carrier frequency of the local oscillator according to the frequency configuration information to correspond to the frequency of the interference signal. The in-phase component multiplier is used to output an in-phase component mixing signal with a center frequency corresponding to the frequency of the interference signal. The quadrature component multiplier is used to output a quadrature component mixing signal with a center frequency corresponding to the frequency of the interference signal; The in-phase component filter is used to receive the bandwidth configuration information, and filters the in-phase component mixing signal to filter out the in-phase component of the interference signal. The quadrature component filter is used to receive the bandwidth configuration information, and filters the quadrature component mixing signal to filter out the quadrature component of the interference signal.

5. The near-field communication module according to claim 2 or 3, wherein, The mixing module includes a multiplier and a local oscillator. The filtering module includes a filter. The analog-to-digital conversion module includes an analog-to-digital converter; The local oscillator is connected to the multiplier. The low-noise amplification module is connected to the multiplier. The multiplier is connected to the filter. The filter is connected to the analog-to-digital converter. The analog-to-digital converter is respectively connected to the digital signal processing module and the modulation and demodulation module. The digital signal processing module is connected to the local oscillator; The local oscillator is used to receive the frequency configuration information, and adjusts the carrier frequency of the local oscillator according to the frequency configuration information to correspond to the frequency of the interference signal. The multiplier is used to output a mixing signal with a center frequency corresponding to the frequency of the interference signal; The filter is used to receive the bandwidth configuration information, and filters the mixing signal with a center frequency corresponding to the frequency of the interference signal to filter out the interference signal.

6. The near-field communication module according to claim 5, wherein, The digital signal processing module includes a digital signal processor. The modulation and demodulation module includes a modem.

7. The near-field communication module according to claim 6, wherein, The near-field communication module includes an ultra-wideband UWB communication module.

8. The near-field communication module according to claim 7, wherein, The interference signal includes a transmission signal of a far-field communication module.

9. The near-field communication module according to claim 8, wherein, the far-field communication module comprises any one of the following: a cellular communication module, a wireless high-fidelity Wi-Fi communication module.

10. An electronic device, wherein, it comprises a near-field communication module and a far-field communication module; the near-field communication module comprises: an antenna for transmitting a communication signal, the communication signal being an ultra-wideband pulse signal; an input processing module connected to the antenna for processing the communication signal and outputting a digital signal, the input processing module comprising a low-noise amplification module, a mixing module, a filtering module and an analog-to-digital conversion module; a digital signal processing module connected to the input processing module for identifying the frequency and bandwidth of interference signals in the digital signal, generating frequency configuration information according to the frequency of the interference signal, and generating bandwidth configuration information according to the bandwidth of the interference signal; the digital signal processing module is further configured to send the frequency configuration information to the mixing module and send the bandwidth configuration information to the filtering module; the mixing module in the input processing module is configured to receive the frequency configuration information, and the filtering module is configured to receive the bandwidth configuration information; and, the mixing module is further configured to adjust the carrier frequency of the mixing module corresponding to the frequency of the interference signal according to the frequency configuration information, so that the center frequency of the output signal of the mixing module corresponds to the frequency of the interference signal; and, the filtering module is further configured to configure the filtering bandwidth of the filtering module corresponding to the bandwidth of the interference signal according to the bandwidth configuration information to filter out the interference signal, so that the input processing module filters the interference signal in the communication signal; a modulation and demodulation module connected to the input processing module for modulating and demodulating the digital signal.

11. A near-field communication method, wherein, it is applied to an electronic device, the electronic device comprising a near-field communication module and a far-field communication module, the near-field communication module comprising an antenna, an input processing module, a digital signal processing module and a modulation and demodulation module; the antenna is connected to the input processing module, the input processing module is connected to the digital signal processing module and the modulation and demodulation module, and the input processing module comprises a low-noise amplification module, a mixing module, a filtering module and an analog-to-digital conversion module; the method comprises: transmitting a communication signal through the antenna, the communication signal being an ultra-wideband pulse signal; processing the communication signal through the input processing module and outputting a digital signal; identifying the frequency and bandwidth of interference signals in the digital signal through the digital signal processing module, generating frequency configuration information according to the frequency of the interference signal, generating bandwidth configuration information according to the bandwidth of the interference signal; and sending the frequency configuration information to the mixing module and sending the bandwidth configuration information to the filtering module; The frequency configuration information is received by the mixing module in the input processing module, and the bandwidth configuration information is received by the filtering module; moreover, the mixing module is further configured to adjust the carrier frequency of the mixing module corresponding to the frequency of the interference signal according to the frequency configuration information, so that the center frequency of the output signal of the mixing module corresponds to the frequency of the interference signal; moreover, the filtering module is further configured to configure the filtering bandwidth of the filtering module corresponding to the bandwidth of the interference signal according to the bandwidth configuration information to filter out the interference signal, so that the input processing module filters the interference signal in the communication signal; The digital signal is modulated and demodulated by the modulation and demodulation module.

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