A processing method, a wireless communication module, and an electronic device.

Abstract

This application discloses a processing method, a wireless communication module, and an electronic device. The method includes: obtaining a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band output by the wireless communication module; performing a mixing process on the first radio frequency signal and the second radio frequency signal to obtain a first mixed signal; performing a filtering process on the first mixed signal to obtain a signal to be transmitted corresponding to a target frequency band; and radiating the signal to be transmitted through a target antenna in the wireless communication module.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and in particular relates to a processing method, a wireless communication module, and an electronic device. Background Technology

[0002] Currently, an increasing number of applications require the use of the 433MHz frequency band, such as wireless sensor data collection and reporting, wireless meter reading, industrial measurement and control, logistics and asset management, robot control, building automation, smart homes, power safety, security monitoring, and PLC (Programmable Logic Controller) industrial control. However, existing computer devices typically only support Wi-Fi (2.4G / 5G / 6G), Bluetooth, and cellular networks, and do not support the 433MHz frequency band, making it difficult to provide adequate technical support for various applications that require the 433MHz frequency band. Summary of the Invention

[0003] Therefore, this application discloses the following technical solution:

[0004] A processing method includes:

[0005] Obtain the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band output by the wireless communication module;

[0006] The first radio frequency signal and the second radio frequency signal are mixed to obtain a first mixed signal;

[0007] The first mixing signal is filtered to obtain the signal to be transmitted corresponding to the target frequency band;

[0008] The signal to be transmitted is radiated through the target antenna in the wireless communication module.

[0009] Optionally, the method further includes:

[0010] Obtain the radiated signal received in the target frequency band;

[0011] The radiated signal is mixed with the auxiliary signal of the first frequency band to obtain the second mixed signal;

[0012] The second mixing signal is filtered to obtain the demodulated signal corresponding to the second frequency band.

[0013] Optionally, the first frequency band is a 5G frequency band, the second frequency band is a 6G frequency band, and the target frequency band is a 433M frequency band.

[0014] Optionally, the first mixing signal includes: a first up-conversion signal and a first down-conversion signal obtained by mixing the output first radio frequency signal of the 5G band and the second radio frequency signal of the 6G band.

[0015] The step of filtering the first mixing signal to obtain the signal to be transmitted corresponding to the target frequency band includes:

[0016] The first up-conversion signal in the first mixing signal is filtered out to obtain the first down-conversion signal corresponding to the 433MHz frequency band, which is used as the signal to be transmitted.

[0017] Optionally, the second mixing signal includes: a second up-converted signal and a second down-converted signal obtained by mixing the radiated signal of the 433M band and the auxiliary signal of the output 5G band.

[0018] The step of filtering the second mixing signal to obtain the demodulated signal corresponding to the second frequency band includes:

[0019] The second down-conversion signal in the second mixing signal is filtered out to obtain the demodulation signal corresponding to the 6G frequency band.

[0020] Optionally, the first radio frequency signal is output by the first communication module of the wireless communication module based on the first frequency band, and the second radio frequency signal is output by the second communication module of the wireless communication module based on the second frequency band;

[0021] The first communication module is connected to the first mixer and the second mixer via a first switch, and the second communication module is connected to the first mixer and the second mixer via a second switch; the first mixer is used to perform mixing processing on the first radio frequency signal and the second radio frequency signal, and the second mixer is used to perform mixing processing on the radiated signal and the auxiliary signal;

[0022] When the first switch and the second switch are not turned on, the wireless communication module uses the first communication module to transmit and receive radio frequency signals corresponding to the first frequency band, and uses the second communication module to transmit and receive radio frequency signals corresponding to the second frequency band.

[0023] When the first switch and the second switch are on, the wireless communication module uses the first communication module, the second communication module and the first mixer to generate and output a signal to be transmitted corresponding to the target frequency band, and uses the first communication module and the second mixer to obtain a signal to be demodulated corresponding to the second frequency band.

[0024] Optionally, the method further includes:

[0025] Frequency selection is performed on the first radio frequency signal of the first frequency band output by the first communication module and the second radio frequency signal of the second frequency band output by the second communication module;

[0026] If the frequency selection result indicates that the intersection of the corresponding position spectra of the first radio frequency signal and the second radio frequency signal satisfies the frequency selection condition, the first switch and the second switch are controlled to be turned on, so as to obtain the first mixed signal by mixing at least a portion of the intersection of the corresponding position spectra that satisfies the frequency selection condition;

[0027] The first frequency band and the second frequency band correspond to multiple mixing combination methods. Each mixing combination method can be used to mix the corresponding sub-frequency band signals of the first frequency band and the second frequency band to obtain the first mixed signal.

[0028] Optionally, the wireless communication module further includes a third communication module and a fourth communication module, as well as multiple ports corresponding to antenna radiation;

[0029] The number of ports is less than the number of frequency bands corresponding to each communication module. At least some of the ports are used for signal radiation of different frequency bands. The at least some ports are used for signal radiation of different frequency bands on the same port through time-division control.

[0030] A wireless communication module, comprising:

[0031] The main control unit is used for wireless data transmission and reception control.

[0032] The first communication module is used for transmitting and receiving radio frequency signals based on the first frequency band;

[0033] The second communication module is used for transmitting and receiving radio frequency signals based on the second frequency band;

[0034] A first mixer is used to obtain a first radio frequency signal in a first frequency band output by a first communication module and a second radio frequency signal in a second frequency band output by a second communication module, and to perform mixing processing on the first radio frequency signal and the second radio frequency signal to obtain a first mixed signal;

[0035] The first filter is used to filter the first mixing signal to obtain the signal to be transmitted corresponding to the target frequency band.

[0036] An electronic device includes the wireless communication module as described above.

[0037] As can be seen from the above scheme, the processing method, wireless communication module and electronic device disclosed in this application obtain a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band output by the wireless communication module, perform frequency mixing processing on the first radio frequency signal and the second radio frequency signal to obtain a first mixed signal, perform filtering processing on the first mixed signal to obtain a signal to be transmitted corresponding to the target frequency band, and radiate the signal to be transmitted through the target antenna in the wireless communication module.

[0038] As can be seen, this application proposes a technical concept of mixing different frequency band radio frequency signals output by a wireless communication module to obtain a signal to be transmitted in the required frequency band. Based on this application, the required signal to be transmitted in the corresponding target frequency band can be obtained by mixing and filtering the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band output by the wireless communication module. Thus, for devices or communication modules that do not support the 433M frequency band, a 433M frequency band signal can be obtained by mixing the radio frequency signals of different frequency bands (such as 5G and 6G frequency bands). Therefore, it can overcome the defect in the prior art that various computers and other devices do not support the 433M frequency band, and provide better technical support for various applications that need to use the 433M frequency band. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0040] Figure 1 This is a comparative illustration of the applications of 2.4GHz and 433MHz provided in this application;

[0041] Figure 2 This is a structural diagram of the wireless communication module provided in this application;

[0042] Figure 3 This includes information on ISM band frequencies and related details.

[0043] Figure 4 This is an application example of the wireless communication module provided in this application;

[0044] Figure 5 This is a flowchart illustrating one of the processing methods provided in this application;

[0045] Figure 6 This is a process diagram of mixing and filtering Wi-Fi 5G / 6G signals provided in this application;

[0046] Figure 7 This is another flowchart illustrating the processing method provided in this application;

[0047] Figure 8 This is another flowchart illustrating the processing method provided in this application;

[0048] Figure 9 This is a schematic diagram of various mixing combinations provided in this application;

[0049] Figure 10 This is a schematic diagram illustrating the scenario of multi-signal switching provided in this application;

[0050] Figure 11 This is a diagram illustrating the various networking modes supported by the 433MHz frequency band;

[0051] Figure 12 This is a graph showing the relationship between WiFi modulation methods and data rates;

[0052] Figure 13 This is a structural diagram of the electronic device provided in this application. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0054] Currently, an increasing number of applications require the use of the 433MHz band, in conjunction with [see also...] Figure 1 The illustrated diagram comparing applications of 2.4GHz and 433MHz shows a range of applications requiring the 433MHz band, such as wireless meter reading, industrial measurement and control, building automation, smart homes, power safety, security monitoring, and PLC industrial control. Existing computer equipment typically only supports Wi-Fi (2.4G / 5G / 6G), Bluetooth, and cellular networks, and does not support the 433MHz band, making it difficult to provide adequate technical support for applications requiring this band.

[0055] Based on this, this application discloses a processing method, a wireless communication module, and an electronic device to solve the aforementioned technical problems of the known technologies. The processing method of this application can be applied to a wireless communication module, which can be, but is not limited to, a wireless network card, such as a wireless Wi-Fi network card.

[0056] See Figure 2The provided wireless communication module comprises at least: a main control unit 10, a first communication module 20, a second communication module 30, a first mixer 40, and a first filter 50.

[0057] The main control unit is used for wireless data transmission and reception control.

[0058] The main control component can be the main controller of the wireless communication module for wireless data transmission and reception control. Taking a wireless Wi-Fi network card as an example, it can specifically be the SOC (System on Chip) of the wireless Wi-Fi network card.

[0059] The first communication module is used for transmitting and receiving radio frequency signals based on the first frequency band.

[0060] Optionally, the first frequency band is the 5G frequency band.

[0061] The first communication module can be a 5G radio frequency module of a wireless communication module, such as a 5G radio frequency module of a wireless Wi-Fi network card, used for transmitting and receiving radio frequency signals based on the 5G frequency band.

[0062] The second communication module is used for transmitting and receiving radio frequency signals based on the second frequency band.

[0063] Optionally, the second frequency band is the 6GHz band.

[0064] The second communication module can be a 6G radio frequency module of a wireless communication module, such as a 6G radio frequency module of a wireless Wi-Fi network card, used for transmitting and receiving radio frequency signals based on the 6G frequency band.

[0065] Both the first communication module and the second communication module are connected to the main control unit.

[0066] The first mixer is used to obtain a first radio frequency signal of a first frequency band output by the first communication module and a second radio frequency signal of a second frequency band output by the second communication module, and to perform mixing processing on the obtained first radio frequency signal and second radio frequency signal to obtain a first mixed signal.

[0067] Taking the first frequency band as the 5G frequency band and the second frequency band as the 6G frequency band as an example, this embodiment of the application specifically uses a first mixer to perform frequency mixing processing on the 5G frequency band radio frequency signal output by the 5G radio frequency module and the 6G frequency band radio frequency signal output by the 6G radio frequency module to obtain a first mixed signal containing the 433M frequency band and related spurious signals.

[0068] The first mixer is connected to the first communication module, the second communication module, and the first filter.

[0069] The first filter is used to filter the first mixing signal to obtain the signal to be transmitted corresponding to the target frequency band.

[0070] The first filter can be, but is not limited to, a band-pass filter (BPF).

[0071] Optionally, the target frequency band is the 433MHz band. Specifically, the 433MHz band can be the 433ISM band, which corresponds to the 433–464MHz band in European standards, as detailed below. Figure 3 As shown.

[0072] The first filter filters the first mixing signal to remove spurious signals outside the target frequency band, thus obtaining the signal to be transmitted in the corresponding target frequency band. For example, by filtering out relevant spurious signals outside the 433MHz frequency band from the first mixing signal, the signal to be transmitted in the 433MHz frequency band is obtained.

[0073] Optionally, in one embodiment, the wireless communication module may further include a power amplifier (PA) and multiple antennas. One end of the power amplifier is connected to a first filter, and the other end is connected to one of the multiple antennas.

[0074] After obtaining the signal to be transmitted in the target frequency band, such as the 433MHz band, the signal can be amplified using a power amplifier and then radiated through the target antenna in the wireless communication module.

[0075] In addition, the wireless communication module can also receive radiated signals in the target frequency band, such as radiated signals in the 433M frequency band, through its corresponding antenna, so that the wireless communication module (such as a wireless Wi-Fi network card) not only supports the transmission processing of 433M frequency band signals, but also supports the reception processing of 433M frequency band signals.

[0076] Optionally, in one embodiment, the wireless communication module further includes a second mixer and a second filter.

[0077] The second mixer is used to mix the received radiated signal of the target frequency band with the auxiliary signal of the first frequency band output by the first communication module to obtain a second mixed signal. The second mixed signal includes the signal of the second frequency band and related spurious signals. For example, mixing the received radiated signal of the 433MHz frequency band with the auxiliary signal of the 5G frequency band output by the 5G radio frequency module yields a second mixed signal that includes the 6G frequency band signal and related spurious signals.

[0078] The second filter is used to filter the second mixing signal, removing spurious signals to obtain the demodulated signal for the corresponding second frequency band, such as the demodulated signal for the 6G frequency band.

[0079] The second filter can specifically be a high-pass filter (HPF).

[0080] Optionally, in one embodiment, the wireless communication module may further include a first switch and a second switch. The first communication module is connected to the first mixer and the second mixer via the first switch, and the second communication module is connected to the first mixer and the second mixer via the second switch.

[0081] When the first and second switches are not connected, the wireless communication module uses the first communication module to transmit and receive radio frequency signals corresponding to the first frequency band, and uses the second communication module to transmit and receive radio frequency signals corresponding to the second frequency band.

[0082] Taking the first communication module and the second communication module as 5G radio frequency module and 6G radio frequency module respectively as examples, when the first switch and the second switch are not turned on, the wireless communication module uses the 5G radio frequency module to transmit and receive radio frequency signals in the 5G band and uses the 6G radio frequency module to transmit and receive radio frequency signals in the 6G band. That is, it uses the 5G radio frequency module and the 6G radio frequency module to transmit and receive radio frequency signals that they originally support.

[0083] When the first switch and the second switch are on, the wireless communication module uses the first communication module, the second communication module and the first mixer to generate and output a signal to be transmitted corresponding to the target frequency band, and uses the first communication module and the second mixer to obtain a signal to be demodulated corresponding to the second frequency band.

[0084] Similarly, taking the first communication module and the second communication module as 5G radio frequency module and 6G radio frequency module respectively as examples, when the first switch and the second switch are turned on, the wireless communication module uses the first mixer to mix the 5G and 6G frequency band signals output by the 5G radio frequency module and the 6G radio frequency module respectively, and can combine the filtering function of the first filter to filter the first mixed signal to obtain the corresponding 433M frequency band signal to be transmitted.

[0085] For the received radiated signal in the 433MHz band, the radiated signal in the 433MHz band can be mixed with the radiated signal in the 5G band output by the 5G RF module through the second mixer. The second mixed signal can be filtered by combining the filtering function of the second filter to obtain the demodulated signal corresponding to the 6G band.

[0086] Optionally, in one embodiment, the wireless communication module may further include a third filter and a small-signal amplifier, wherein the third filter may be a bandpass filter. After the corresponding antenna of the wireless communication module receives the radiated signal of the target frequency band (such as the radiated signal of the 433MHz band), it is sequentially amplified by the small-signal amplifier and bandpass filtered by the third filter before being sent to the second mixer, whereby the second mixer mixes it with the auxiliary signal of the first frequency band (such as the radiated signal of the 5G band) output by the first communication module.

[0087] Optionally, in one embodiment, the wireless communication module may further include a third communication module and a fourth communication module.

[0088] The third communication module may be, but is not limited to, a 2.4G radio frequency module, used for transmitting and receiving radio frequency signals based on the 2.4G frequency band; the fourth communication module may be a Bluetooth module, used for transmitting and receiving Bluetooth signals.

[0089] See Figure 4 This application provides an example of the wireless communication module of this application.

[0090] In this example, the wireless communication module is a wireless Wi-Fi network card, including a main control chip (SOC), a 5G RF module, a 6G RF module, a 2.4G RF module, a Bluetooth module (BT), a first switch (switch1), a second switch (switch2), a third switch (switch3), a first mixer (mixer1), a second mixer (mixer2), a first filter (BPF1), a second filter (HPF), a power amplifier (PA), a third filter (BPF2), a small signal amplifier (LNA), three frequency division duplexers, and three antennas. The connection relationships of each component are as follows: Figure 4 As shown.

[0091] Based on its components, this wireless Wi-Fi network card transmits and receives signals in the 433MHz band. For signal reception, external analog radio frequency signals go to the transceiver, then pass through the baseband to convert the analog signal into a digital signal, which is then sent to the processor for processing. Transmission is the reverse process. The detailed working principle of this wireless Wi-Fi network card for transmitting and receiving signals in the 433MHz band is as follows:

[0092] (I) Transmission of 433MHz band signals

[0093] The two Wi-Fi lines are switched between the upper and lower branches via switches 1 and 2 to the two middle signal branches, which are for the 5G RF module and the 6G RF module respectively. Figure 4The corresponding 5G and 6G 20M bandwidth signal branches are used; based on the 5G RF module and the 6G RF module, the 5G and 6G RF signals are output respectively in the 5G and 6G signal branches; the output 5G and 6G RF signals are mixed by the first mixer 1 to obtain the first mixed signal composed of the useful signal (433M band signal) and spurious signals, and then sent to the first filter BPF1 for bandpass filtering to obtain the 433M band signal. The signal amplitude is then amplified by the amplifier PA, and then passed through the corresponding frequency division duplexer and antenna (e.g., ...). Figure 4 The 433MHz ANT was launched.

[0094] (II) Reception of 433MHz band signals

[0095] Through the corresponding antenna (e.g.) Figure 4 The 433MHz ANT receives radiated signals from other signal sources in the 433MHz band. The received signal is amplified by a small signal amplifier (LNA) and filtered by a third filter (BPF2). It is then sent to a second mixer (mixer2). In mixer2, the 5G auxiliary signal output from the 5G RF module via the first switch (switch1) is mixed to obtain a second mixed signal. The second mixed signal is then high-pass filtered by a second filter (HPF) to obtain a 6G useful signal (to be demodulated) and sent to the SOC's internal baseband for signal processing.

[0096] The transmission and reception of 433MHz band signals can be performed simultaneously. During this simultaneous transmission and reception, the 5G RF signal output by the 5G RF module is used in both the transmission and reception branches of the 433MHz band signal; that is, it is multiplexed. For details, please refer to [reference needed]. Figure 4 As shown.

[0097] This application embodiment adds a mixer and control switch to a wireless communication module, such as a wireless Wi-Fi card, that does not include a 433MHz underlying radio frequency line. Based on the added components and the existing radio frequency line of the wireless communication module, the signal transmission and reception of the desired target frequency band, such as the 433MHz band, are achieved through mixing. This eliminates the need to add a 433MHz underlying radio frequency line to the wireless communication module to achieve signal transmission and reception of the 433MHz band. Furthermore, it eliminates the need for a local oscillator to participate in the mixing, overcoming the shortcomings of existing technologies where various computers and other devices do not support the 433MHz band. This provides better technical support for various applications that require the use of the 433MHz band.

[0098] The following section provides a detailed explanation of how to achieve signal transmission and reception in a target frequency band using a wireless communication module, in conjunction with the method described in this application.

[0099] See Figure 5 The flowchart of the processing method shown indicates that the processing method provided in this application includes at least the following:

[0100] Step 501: Obtain the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band output by the wireless communication module.

[0101] Specifically, this can be achieved in the first mixer, such as... Figure 4 Mixer1 in the wireless communication module obtains the first radio frequency signal of the first frequency band output by the first communication module of the wireless communication module, and the second radio frequency signal of the second frequency band output by the second communication module.

[0102] As in Figure 4 Mixer1 in the middle obtains the 5G band RF signal output by the 5G RF module and the 6G band RF signal output by the 6G RF module.

[0103] Step 502: Mix the first radio frequency signal and the second radio frequency signal to obtain the first mixed signal.

[0104] Subsequently, the first mixer performs mixing processing on the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band, that is, it adds and subtracts the frequencies of the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band. After mixing, an up-converted signal (frequency addition) and a down-converted signal (frequency subtraction) are generated. In this embodiment, they are referred to as the first up-converted signal and the first down-converted signal. The generated first up-converted signal and the first down-converted signal constitute the first mixing signal.

[0105] See Figure 6 After the existing two radio frequency signals, Wi-Fi 5G and Wi-Fi 6G, of the wireless Wi-Fi network card are transmitted to the first mixer 1 through the switch control, an up-conversion signal and a down-conversion signal will be generated, namely the first up-conversion signal and the first down-conversion signal. The first down-conversion signal corresponds to the 433M frequency band and is the useful signal, while the first up-conversion signal is the spurious signal.

[0106] Step 503: Filter the first mixing signal to obtain the signal to be transmitted for the corresponding target frequency band.

[0107] After obtaining the first mixing signal, the first mixing signal is sent to the first filter, such as... Figure 4In BPF1, the first filter uses bandpass filtering to remove the first up-converted signal from the first mixer signal as spurious signal, obtaining the down-converted signal corresponding to the 433MHz band. Then, the signal corresponding to the 433MHz band after spurious signal removal is further sent to an amplifier for signal amplitude amplification, thereby obtaining the signal to be transmitted corresponding to the 433MHz band. Specifically, as shown... Figure 6 As shown.

[0108] Step 504: Radiation of the signal to be transmitted through the target antenna in the wireless communication module.

[0109] The target antenna can be a 433MHz antenna added to the wireless communication module for transmitting and receiving signals in the 433MHz band, or a Wi-Fi antenna or BT antenna included in the wireless communication module for transmitting and receiving signals such as Wi-Fi or BT. Accordingly, the added 433MHz antenna can be used to radiate the signal to be transmitted, or existing antennas such as Wi-Fi antennas or BT antennas in the wireless communication module can be reused to radiate the signal to be transmitted, without any restrictions.

[0110] In this embodiment of the application, a 433MHz antenna is preferably added for radiating the signal to be transmitted. For example, Figure 4 In the example, a 433MHz antenna was added to the wireless Wi-Fi network card, and the antenna was used to radiate the signal to be transmitted.

[0111] Optionally, when using the target antenna to radiate the signal to be transmitted, the antenna's radiation direction and radiation power can be adjusted according to the radiation parameters of the signal to be transmitted.

[0112] In summary, this application proposes a technical concept of mixing different frequency band radio frequency signals output by a wireless communication module to obtain a signal to be transmitted in the desired frequency band. Based on this application, the desired signal to be transmitted in the corresponding target frequency band can be obtained by mixing and filtering the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band output by the wireless communication module. Thus, for devices or communication modules that do not support the 433M frequency band, a 433M frequency band signal can be obtained by mixing the radio frequency signals of different frequency bands (such as 5G and 6G frequency bands). Therefore, it can overcome the shortcomings of existing technologies where various computers and other devices do not support the 433M frequency band, and provides better technical support for various applications that need to use the 433M frequency band.

[0113] In one embodiment, see Figure 7 The flowchart of the processing method shown in this application may further include the following processes:

[0114] Step 505: Obtain the radiated signal received in the target frequency band.

[0115] Specifically, this can be achieved through the corresponding antenna in the wireless communication module, such as... Figure 4 The 433M antenna in the middle receives the radiated signal at 433M, and then sends the received radiated signal to the second mixer after being amplified by a small signal amplifier and bandpass filtered by a third filter.

[0116] Step 506: Mix the radiated signal with the auxiliary signal of the first frequency band to obtain the second mixed signal.

[0117] Second mixer, such as Figure 4 In addition to receiving the radiated signal from the input 433MHz band, mixer2 also receives the auxiliary signal from the 5G band output by the 5G RF module, such as... Figure 4 Specifically, the auxiliary signal of the 5G band output by the 5G RF module via the first switch (switch1) is obtained. Then, the second mixer mixes the radiated signal of the 433MHz band with the auxiliary signal of the 5G band, that is, it adds and subtracts the frequencies of the obtained radiated signal of the 433MHz band and the auxiliary signal of the 5G band. After mixing, corresponding up-converted signals (frequency addition) and down-converted signals (frequency subtraction) are generated. In this embodiment, these are referred to as the second up-converted signal and the second down-converted signal.

[0118] The second up-conversion signal is the useful signal corresponding to the 6G frequency band, while the second down-conversion signal is a spurious signal. The generated second up-conversion signal and the second down-conversion signal constitute the second mixing signal.

[0119] Step 507: Filter the second mixing signal to obtain the demodulated signal corresponding to the second frequency band.

[0120] After mixing is complete, the second mixer further sends the resulting second mixed signal to the second filter for filtering, such as when it is sent to... Figure 4 The HPF in the middle performs high-pass filtering. The HPF filters out the second down-conversion signal in the second mixer signal as a spurious signal through high-pass filtering, and obtains the useful signal corresponding to the 6G frequency band, which is the signal to be demodulated. Then, it can be sent to the SOC internal baseband for signal processing, such as demodulation using the WiFi 6G port in the SOC internal baseband.

[0121] In other words, by adjusting the received radiated signal from the 433MHz band to a 6GHz band signal using a mixing method and then demodulating it, the problem of the wireless communication module being unable to receive and demodulate the 433MHz band signal due to the lack of a 433MHz underlying radio frequency circuit is effectively overcome.

[0122] It should be noted that the reception and processing process for target frequency bands, such as the 433MHz band, provided in this embodiment is different from... Figure 4 The transmission processing flow of the target frequency band signal shown can be carried out simultaneously as needed. That is, while transmitting the target frequency band signal such as 433MHz, the signal of the same frequency band can also be received. In the case of the two processes being carried out simultaneously, the signal transmission and reception rate can be improved by using different channels within the 433MHz frequency band for transmission and reception.

[0123] In one embodiment, see Figure 8 The flowchart of the processing method shown in this application may include the following processes before step 501:

[0124] Step 801: Select the frequency of the first radio frequency signal of the first frequency band output by the first communication module and the second radio frequency signal of the second frequency band output by the second communication module.

[0125] Among them, the first frequency band and the second frequency band correspond to multiple mixing combination methods. Each mixing combination method can be used to mix the corresponding sub-frequency band signals of the first frequency band and the second frequency band to obtain the first mixed signal.

[0126] Taking the first and second frequency bands as examples, namely the 5G and 6G frequency bands respectively, 5G and 6G each contain multiple 20MHz bandwidth sub-bands. Through various mixing methods, the corresponding 20MHz bandwidth sub-band signals can be selected from the different 20MHz bandwidth sub-band signals of the 5G frequency band and the different 20MHz bandwidth sub-band signals of the 6G frequency band for combination and mixing to obtain the 433MHz frequency band signal.

[0127] See Figure 9 The diagram illustrates several different combinations. Each dashed arrow represents a combination of a 5GHz 20MHz bandwidth sub-band and a 6GHz 20MHz bandwidth sub-band, which can be used to mix the signals corresponding to these sub-bands to obtain a 433MHz signal. Different dashed arrows represent different combinations, but the corresponding mixing results are the same: all can produce the desired 433MHz signal.

[0128] Based on this, in the embodiments of this application, before mixing the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band, the first radio frequency signal of the first frequency band output by the first communication module and the second radio frequency signal of the second frequency band output by the second communication module are first selected for frequency selection.

[0129] Step 802: If the frequency selection result indicates that the intersection of the corresponding position spectra of the first radio frequency signal and the second radio frequency signal satisfies the frequency selection condition, control the first switch and the second switch to turn on, so as to obtain the first mixed signal by mixing the intersection of the corresponding position spectra that satisfies the frequency selection condition.

[0130] Specifically, the intersection of the corresponding position spectra of the first radio frequency signal and the second radio frequency signal can be determined, frequency selection can be performed based on the intersection of the corresponding position spectra of the first radio frequency signal and the second radio frequency signal, and when the frequency selection result indicates that the intersection of the corresponding position spectra of the first radio frequency signal and the second radio frequency signal satisfies the frequency selection condition, the first switch and the second switch are controlled to be turned on, so as to obtain the first mixed signal by mixing at least a portion of the intersection of the corresponding position spectra that satisfies the frequency selection condition.

[0131] Optionally, the frequency selection condition can be set as follows: the bandwidth corresponding to the intersection of the spectrum at the corresponding location is not less than 20M bandwidth.

[0132] For frequency selection of RF signals in the 5G and 6G bands, a comparator circuit can be used to find the intersection of the corresponding position spectra of the 5G and 6G bands. If the amplitudes of the corresponding position spectra are the same, a high level is output; otherwise, if they are different beyond a certain threshold, a low level is output. When the high-level waveform output by frequency domain scanning determines that there is sufficient (e.g., not less than 20MHz) clean idle bandwidth, the frequency selection condition can be determined. In this case, the corresponding 20MHz channel in the 5G and 6G bands can be determined as the frequency selection result based on the idle bandwidth frequency range, and the two switches can be notified to turn on. For example, a high-level signal can be sent to the first and second switches to trigger the first and second switches to switch from the off state to the on state. On this basis, the two selected frequency domain signals can be down-converted and mixed by the first mixer to obtain the useful signal in the 433MHz band.

[0133] This embodiment first performs frequency selection before mixing to obtain a 433MHz band signal. When the frequency selection result indicates that the intersection of the corresponding spectral values ​​of the first and second radio frequency signals meets the frequency selection conditions, mixing is triggered by controlling the switch state, thus achieving automatic control of the mixing. At the same time, the effectiveness of obtaining a useful 433MHz band signal through mixing can be ensured by flexibly selecting from multiple combined mixing methods.

[0134] In one embodiment, the wireless communication module may also correspond to multiple ports for antenna radiation.

[0135] The number of ports corresponding to the wireless communication module is less than the number of frequency bands corresponding to each communication module. At least some of the ports are used for signal radiation of different frequency bands. The at least some ports are used for signal radiation of different frequency bands on the same port through time-division control.

[0136] For example, see the section on wireless Wi-Fi network cards. Figure 10In the multi-signal switching scenario shown, the wireless Wi-Fi network card itself has two ports for connecting the antenna for radiation. With the addition of the 433MHz port, there are a total of 3 ports. However, the number of frequency bands corresponding to each communication module (such as Wi-Fi 5G / 6G / 2.4G bands, 433MHz band, and Bluetooth band) is higher than 3. Therefore, the signal transmission and reception functions of each frequency band cannot be used simultaneously. To address this issue, this embodiment reuses at least some of the ports corresponding to the wireless communication module for signal radiation of different frequency bands, and uses a time-division control method to achieve the radiation of signals of different frequency bands on the same port.

[0137] Each port corresponds to an antenna, and at least a portion of the antennas in the wireless communication module are reused for signal radiation in different frequency bands.

[0138] like Figure 10 As shown, one of the three ports / antennas of the wireless Wi-Fi network card is reused for Wi-Fi 2.4G / 5G signal radiation using a time-division control method. Another port / antenna is reused for Wi-Fi 2.4G / 6G and BT band signal radiation using the same time-division control method. Signals in the 433MHz band are exclusively controlled by the additional 433MHz port / antenna in the wireless Wi-Fi network card.

[0139] Based on the time-division control method, the function of simultaneously providing signal transmission and reception capabilities for different frequency bands is indirectly achieved by rapidly switching between different frequency bands.

[0140] Based on the scheme of this application, after achieving the transmission and reception of 433MHz band signals through frequency mixing, compared with traditional short-range communication methods such as Wi-Fi, this application can achieve communication over a longer distance (theoretically 2-3km in open areas). For example, see... Figure 11 For various networking methods supported by the 433MHz band, including point-to-point, star, mesh, and trunking topologies, a wider communication coverage range than Wi-Fi can be achieved. Since the 433MHz bandwidth (30MHz) is slightly larger than Wi-Fi's signal bandwidth of 20MHz, if the same QAM64 modulation method as Wi-Fi is used, the bit rate can be maintained between 10-20Mbps. Figure 12 As shown, QAM64 modulation is therefore the preferred modulation method. Furthermore, since multiple frequency combinations can achieve 433MHz, the channel can be dynamically adjusted without affecting the 5G / 6G signal radiation of the network card.

[0141] In practical applications, the wireless communication module (such as a wireless Wi-Fi network card) of this application can be applied to various computer devices, enabling these computer devices to support the 433M frequency band without the need for additional 433M underlying radio frequency lines. This provides better technical support for various applications that require the use of the 433M frequency band, such as wireless meter reading, industrial measurement and control, and security monitoring. It can effectively overcome the shortcomings of deploying multiple Wi-Fi routers for network coverage, such as limited Wi-Fi wall penetration, poor signal diffraction, limited transmission distance and signal strength, and the need for dense deployment of multiple Wi-Fi routers.

[0142] In addition, embodiments of this application also provide an electronic device, which may be, but is not limited to, a device in a variety of general or special computing device environments or configurations, such as: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor devices, etc.

[0143] See Figure 13 As shown, the electronic device includes a wireless communication module 131 as disclosed in the embodiments above.

[0144] In addition, it may include:

[0145] Memory 132 is used to store the computer instruction set;

[0146] Computer instruction sets can be implemented in the form of computer programs.

[0147] The processor 133 is used to perform the required processing by executing a set of computer instructions. It can also perform wireless data transmission and reception through interaction with the wireless communication module 131.

[0148] The processor 133 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices.

[0149] Electronic devices have a display device and / or have a display interface and can connect to an external display device.

[0150] Optionally, the electronic device may also include a camera assembly, and / or be connected to an external camera assembly.

[0151] In addition to these components, electronic devices may also include communication interfaces, communication buses, and other parts. Memory, processor, and communication interface communicate with each other through the communication bus.

[0152] Communication interfaces are used for communication between electronic devices and other devices. Communication buses can be Peripheral Component Interconnect (PCI) buses or Extended Industry Standard Architecture (EISA) buses, and can be categorized into address buses, data buses, control buses, etc.

[0153] In summary, the processing method, wireless communication module, and electronic device provided in this application have at least the following technical advantages:

[0154] a. It eliminates the need for network card vendors to design and add a separate 433MHz underlying RF circuit, and omits the use of a local oscillator in the mixing process (on the one hand, the local oscillator frequency commonly found in superheterodyne transceivers is generally higher or lower than the intermediate frequency (<100MHz) of the common RF signal, making it impossible to directly mix and obtain a 433MHz high-frequency signal; on the other hand, using a local oscillator is susceptible to interference from the received signal, resulting in desense problems and reduced sensitivity). It directly utilizes its own two Wi-Fi RF circuits to mix and down-convert to obtain a 433MHz signal, which is then transmitted and received through the corresponding frequency antenna.

[0155] b. The underlying network card protocol remains Wi-Fi. If QAM modulation is used to increase the data throughput of 433MHz, multiple devices can be connected for rapid data exchange. Various 5G and 6G frequency mixing combinations can achieve 433MHz, allowing for dynamic channel adjustment without affecting 5G / 6G signal radiation.

[0156] c. The significant advantages of 433MHz are strong wireless signal penetration, longer signal transmission distance, and greater network signal coverage. It also supports star, mesh, and cluster router deployments, enabling greater coverage under limited conditions.

[0157] d. It can expand into more practical scenarios, such as computer-controlled IoT furniture, industrial measurement and control, robot control, and point-to-point long-distance use cases of similar computers with small data volumes.

[0158] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0159] For ease of description, the above systems or devices are described separately as various modules or units based on their functions. Of course, in implementing this application, the functions of each unit can be implemented in one or more software and / or hardware components.

[0160] As can be seen from the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platforms. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of this application.

[0161] Finally, it should be noted that in this document, relational terms such as first, second, third, and fourth are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0162] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A processing method, comprising: Obtain the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band output by the wireless communication module; The first radio frequency signal and the second radio frequency signal are mixed to obtain a first mixed signal; The first mixing signal is filtered to obtain the signal to be transmitted corresponding to the target frequency band; The signal to be transmitted is radiated through the target antenna in the wireless communication module; The first frequency band is the 5G frequency band, the second frequency band is the 6G frequency band, and the target frequency band is the 433M frequency band.

2. The method according to claim 1, further comprising: Obtain the radiated signal received in the target frequency band; The radiated signal is mixed with the auxiliary signal of the first frequency band to obtain the second mixed signal; The second mixing signal is filtered to obtain the demodulated signal corresponding to the second frequency band.

3. The method according to claim 1, wherein the first mixing signal comprises: By mixing the first radio frequency signal of the 5G band and the second radio frequency signal of the 6G band, a first up-conversion signal and a first down-conversion signal are obtained. The step of filtering the first mixing signal to obtain the signal to be transmitted corresponding to the target frequency band includes: The first up-conversion signal in the first mixing signal is filtered out to obtain the first down-conversion signal corresponding to the 433MHz frequency band, which is used as the signal to be transmitted.

4. The method according to claim 2, wherein the second mixing signal comprises: The second up-converted signal and the second down-converted signal are obtained by mixing the radiated signal of the 433M band and the auxiliary signal of the output 5G band. The step of filtering the second mixing signal to obtain the demodulated signal corresponding to the second frequency band includes: The second down-conversion signal in the second mixing signal is filtered out to obtain the demodulation signal corresponding to the 6G frequency band.

5. The method according to claim 2, wherein the first radio frequency signal is output by the first communication module of the wireless communication module based on the first frequency band, and the second radio frequency signal is output by the second communication module of the wireless communication module based on the second frequency band; The first communication module is connected to the first mixer and the second mixer via a first switch, and the second communication module is connected to the first mixer and the second mixer via a second switch; the first mixer is used to perform mixing processing on the first radio frequency signal and the second radio frequency signal, and the second mixer is used to perform mixing processing on the radiated signal and the auxiliary signal; When the first switch and the second switch are not turned on, the wireless communication module uses the first communication module to transmit and receive radio frequency signals corresponding to the first frequency band, and uses the second communication module to transmit and receive radio frequency signals corresponding to the second frequency band. When the first switch and the second switch are on, the wireless communication module uses the first communication module, the second communication module and the first mixer to generate and output a signal to be transmitted corresponding to the target frequency band, and uses the first communication module and the second mixer to obtain a signal to be demodulated corresponding to the second frequency band.

6. The method according to claim 5, further comprising: Frequency selection is performed on the first radio frequency signal of the first frequency band output by the first communication module and the second radio frequency signal of the second frequency band output by the second communication module; If the frequency selection result indicates that the intersection of the corresponding position spectra of the first radio frequency signal and the second radio frequency signal satisfies the frequency selection condition, the first switch and the second switch are controlled to be turned on, so as to obtain the first mixed signal by mixing at least a portion of the intersection of the corresponding position spectra that satisfies the frequency selection condition; The first frequency band and the second frequency band correspond to multiple mixing combination methods. Each mixing combination method can be used to mix the corresponding sub-frequency band signals of the first frequency band and the second frequency band to obtain the first mixed signal.

7. The method according to claim 5, wherein the wireless communication module further comprises a third communication module and a fourth communication module, and a plurality of ports corresponding to antenna radiation; The number of ports is less than the number of frequency bands corresponding to each communication module. At least some of the ports are used for signal radiation of different frequency bands. The at least some ports are used for signal radiation of different frequency bands on the same port through time-division control.

8. A wireless communication module, comprising: The main control unit is used for wireless data transmission and reception control. The first communication module is used for transmitting and receiving radio frequency signals based on the first frequency band; The second communication module is used for transmitting and receiving radio frequency signals based on the second frequency band; A first mixer is used to obtain a first radio frequency signal in a first frequency band output by a first communication module and a second radio frequency signal in a second frequency band output by a second communication module, and to perform mixing processing on the first radio frequency signal and the second radio frequency signal to obtain a first mixed signal; The first filter is used to filter the first mixing signal to obtain the signal to be transmitted corresponding to the target frequency band; the first frequency band is the 5G frequency band, the second frequency band is the 6G frequency band, and the target frequency band is the 433M frequency band.

9. An electronic device comprising the wireless communication module as described in claim 8.

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