Transmitter, reflector, receiver, optical-electrical communication system and communication method

Abstract

Provided are a transmitter (1), a receiver (2), a reflecting mechanism (3) and an optoelectronic communication system (10), the transmitter (1) comprising: a first control unit (11), a signal modulation component (12) and a signal transmission component (13), the first control unit (11) being configured to divide received first communication data into a first data stream and a second data stream; the signal modulation component (12) being configured to modulate the first data stream and the second data stream into a first radio frequency carrier signal and a first optical carrier signal, respectively; and the signal transmission component (13) being configured to transmit the first radio frequency carrier signal and the first optical carrier signal. In this way, the first radio frequency carrier signal and the first optical carrier signal are transmitted along a radio frequency channel and an optical channel, respectively, by the signal transmission component (13), so as to reduce the spectrum utilization rate on the radio frequency channel, thereby reducing or even avoiding the impact of limited spectrum resources on the radio frequency channel on communication.(Figure 2)

Description

Transmitter, reflector, receiver, optoelectronic communication system and communication method Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to a transmitter, a reflector, a receiver, an optoelectronic communication system, and a communication method. Background Technology

[0002] Smart devices are an indispensable part of modern life, including but not limited to smart lighting, smart sockets, smart door locks, and smart curtains, and are mainly based on home LANs to achieve automated and intelligent control.

[0003] Currently, smart devices communicate using radio frequency (RF) signals. As the number of smart devices increases, so does the amount of communication data, which can easily lead to RF signal interference. Furthermore, the limited spectrum resources can affect the transmission of RF signals between smart devices, thereby impacting the automation and intelligence of these devices.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this disclosure is to provide a transmitter, a reflector, a receiver, an optoelectronic communication system, and a communication method.

[0006] According to one aspect of this disclosure, a transmitter is provided, comprising:

[0007] A first control unit is configured to receive first communication data and divide the first communication data into a first data stream and a second data stream.

[0008] A signal modulation component is connected to the first control unit and is used to modulate the first data stream and the second data stream respectively to obtain a first radio frequency carrier signal and a first optical carrier signal;

[0009] A signal transmitting component is connected to the signal modulation component and is used to transmit the first radio frequency carrier signal and the first optical carrier signal to the receiver so that the receiver can acquire the first communication data.

[0010] According to any of the transmitters described in this disclosure, the signal modulation component includes a first modulation module, a first radio frequency carrier module, and a first optical carrier module, and the signal transmission component includes a radio frequency transmission component and an optical transmission component;

[0011] The first modulation module is connected to the first control unit, and is also connected to the first radio frequency carrier module and the first optical carrier module. The first radio frequency carrier module is connected to the radio frequency transmitting component, and the first optical carrier module is connected to the optical transmitting component.

[0012] The first modulation module is used to modulate the first data stream and the second data stream respectively to obtain the corresponding first radio frequency modulation signal and the first optical modulation signal. The first radio frequency carrier module and the first optical carrier module are used to perform up-conversion processing on the first radio frequency modulation signal and the first optical modulation signal respectively to obtain the first radio frequency carrier signal and the first optical carrier signal. The radio frequency transmitting component and the optical transmitting component are used to transmit the first radio frequency carrier signal and the first optical carrier signal respectively.

[0013] According to any of the transmitters described in this disclosure, the first modulation module includes a first radio frequency modulation module and a first optical modulation module;

[0014] The first radio frequency modulation module and the first optical modulation module are both connected to the first control unit, and are also connected to the first radio frequency carrier module and the first optical carrier module, respectively.

[0015] The first radio frequency modulation module is used to modulate the first data stream to obtain the first radio frequency modulation signal, and the first optical modulation module is used to modulate the second data stream to obtain the first optical modulation signal.

[0016] According to any of the transmitters described in this disclosure, the radio frequency transmitting component includes a first radio frequency antenna, and the optical transmitting component includes a light-emitting device and a light-emitting driving circuit;

[0017] The first radio frequency antenna and the light-emitting driving circuit are integrated on the same circuit board, and the light-emitting driving circuit is connected to the light-emitting device.

[0018] According to any of the transmitters described in this disclosure, the optical transmitting assembly further includes a plurality of first optical antennas, and the plurality of first optical antenna arrays are distributed on the light-emitting side of the light-emitting device.

[0019] According to any of the transmitters described in this disclosure, the light-emitting device is used to emit the first optical carrier signal in the form of incoherent light.

[0020] According to any of the transmitters described in this disclosure, the signal transmitting component further includes a mounting plate, the radio frequency transmitting component includes a first radio frequency antenna, and the optical transmitting component includes a first optical antenna;

[0021] The mounting plate has mounting holes, the first radio frequency antenna is fixed on the mounting plate, and the first optical antenna is confined within the mounting holes.

[0022] According to any of the transmitters described in this disclosure, the first radio frequency antenna includes a plurality of antenna elements, which are uniformly distributed circumferentially around the periphery of the first optical antenna.

[0023] According to one aspect of this disclosure, a reflective mechanism is provided, comprising:

[0024] The second control unit is used to receive the second communication data and divide the second communication data into a third data stream and a fourth data stream.

[0025] The second modulation module is connected to the second control unit and is used to modulate the third data stream and the fourth data stream respectively to obtain a second radio frequency modulation signal and a second optical modulation signal.

[0026] The reflective surface assembly includes a radio frequency (RF) reflective component and an optical reflective component. Both the RF reflective component and the optical reflective component are connected to the second modulation module. The RF reflective component is used to adjust the reflection coefficient using the second RF modulation signal, so that when the first RF carrier signal transmitted by the transmitter is incident on the RF reflective component, the second RF modulation signal is loaded onto the first RF carrier signal, and the second RF carrier signal obtained after loading is reflected to the receiver. The optical reflective component is used to adjust the reflection coefficient using the second optical modulation signal, so that when the first optical carrier signal transmitted by the transmitter is incident on the optical reflective component, the second optical modulation signal is loaded onto the first optical carrier signal, and the second optical carrier signal obtained after loading is reflected to the receiver, so that the receiver receives the second communication data.

[0027] According to any of the reflection mechanisms described in this disclosure, the optical reflection assembly includes an optical driving module and an optically controlled reflection structure;

[0028] The optical driving module is connected to the second modulation module and to the optical controlled reflection structure. The optical driving module is used to adjust the reflection coefficient of the optical controlled reflection structure through the second optical modulation signal, so that when the first optical carrier signal emitted by the transmitter is incident on the optical controlled reflection structure, the second optical modulation signal is loaded onto the first optical carrier signal, and the second optical carrier signal obtained after loading is reflected to the receiver.

[0029] According to any of the reflection mechanisms described in this disclosure, the radio frequency reflection component includes a radio frequency reflection surface;

[0030] The optically controlled reflection structure is a light reflector, and the optically controlled reflection structure is integrated on the radio frequency reflective surface.

[0031] According to any of the reflection mechanisms described in this disclosure, the radio frequency reflection component includes a radio frequency reflection surface, and the radio frequency reflection surface is a light-transmitting structure;

[0032] The optically controlled reflection structure is an optically controlled reflection surface. The radio frequency reflection surface is stacked with the optically controlled reflection surface, and the radio frequency reflection surface is located in the optical path between the transmitter and the optically controlled reflection surface.

[0033] According to any of the reflection mechanisms described in this disclosure, the optical reflection component further includes an optical diffuse reflection surface located in the optical path between the optically controlled reflection structure and the receiver.

[0034] According to any of the reflection mechanisms described in this disclosure, the radio frequency reflection component includes a radio frequency reflection surface, and the radio frequency reflection surface is a light-transmitting structure;

[0035] The radio frequency reflective surface is stacked with the optical diffuse reflective surface, and the radio frequency reflective surface is located in the optical path between the optical controlled reflection structure and the optical diffuse reflective surface.

[0036] According to any of the reflection mechanisms described in this disclosure, the second modulation module includes a second radio frequency modulation module and a second optical modulation module;

[0037] Both the second radio frequency modulation module and the second optical modulation module are connected to the second control unit, and are also connected to the radio frequency reflection component and the optical reflection component, respectively.

[0038] According to one aspect of this disclosure, a receiver is provided, comprising:

[0039] A signal receiving component is used to receive a first radio frequency carrier signal and a first optical carrier signal transmitted by a transmitter, so as to obtain a third radio frequency carrier signal and a third optical carrier signal after transmission, respectively;

[0040] A signal demodulation component is connected to the signal receiving component and is used to demodulate the third radio frequency carrier signal and the third optical carrier signal respectively to obtain a first data stream and a second data stream.

[0041] The third control unit is connected to the signal demodulation component and is used to synthesize the first data stream and the second data stream to obtain the first communication data.

[0042] According to any of the receivers described in this disclosure, the signal demodulation component includes a demodulation module, a second radio frequency carrier module, and a second optical carrier module, and the signal receiving component includes a radio frequency receiving component and an optical receiving component;

[0043] The demodulation module is connected to the third control unit, and also to the second radio frequency carrier module and the second optical carrier module. The second radio frequency carrier module is connected to the radio frequency receiving module, and the second optical carrier module is connected to the optical receiving module.

[0044] The radio frequency receiving component and the optical receiving component are used to receive the first radio frequency carrier signal and the first optical carrier signal respectively to obtain the third radio frequency carrier signal and the third optical carrier signal respectively. The second radio frequency carrier module and the second optical carrier module are used to perform down-conversion processing on the third radio frequency carrier signal and the third optical carrier signal respectively to obtain the third radio frequency modulation signal and the third optical modulation signal. The demodulation module is used to demodulate the third radio frequency modulation signal and the third optical modulation signal respectively to obtain the first data stream and the second data stream.

[0045] According to any of the receivers described in this disclosure, the demodulation module includes a radio frequency demodulation module and an optical demodulation module;

[0046] The radio frequency demodulation module and the optical demodulation module are both connected to the third control unit, and are also connected to the second radio frequency carrier module and the second optical carrier module, respectively.

[0047] The radio frequency demodulation module is used to demodulate the third radio frequency modulation signal to obtain the first data stream, and the optical demodulation module is used to demodulate the third optical modulation signal to obtain the second data stream.

[0048] According to any of the receivers described in this disclosure, the signal receiving component includes a photodetector for collecting incoherent light to receive a first optical carrier signal emitted by a transmitter.

[0049] According to another aspect of this disclosure, a receiver is provided, comprising:

[0050] The signal receiving component is used to receive the first radio frequency carrier signal and the first optical carrier signal transmitted by the transmitter, so as to obtain the third radio frequency carrier signal and the third optical carrier signal after transmission, respectively; and to receive the second radio frequency carrier signal and the second optical carrier signal reflected by the reflecting mechanism, so as to obtain the fourth radio frequency carrier signal and the fourth optical carrier signal after transmission, respectively.

[0051] A signal demodulation component is connected to the signal receiving component and is used to demodulate the third radio frequency carrier signal and the fourth radio frequency carrier signal to obtain a first data stream and a third data stream, and to demodulate the third optical carrier signal and the fourth optical carrier signal to obtain a second data stream and a fourth data stream.

[0052] The third control unit is connected to the signal demodulation component and is used to combine the first data stream and the second data stream to obtain first communication data, and to combine the third data stream and the fourth data stream to obtain second communication data.

[0053] According to one aspect of this disclosure, an optoelectronic communication system is provided, including the transmitter and the receiver described in the above-described aspect.

[0054] According to one aspect of this disclosure, an optoelectronic communication system is provided, comprising the transmitter described in one aspect, the reflector described in one aspect, and the receiver described in another aspect.

[0055] According to one aspect of this disclosure, a communication method is provided, the method being applied to a transmitter according to the above-described aspect, the method comprising:

[0056] Acquire first communication data and divide the first communication data to obtain a first data stream and a second data stream;

[0057] The first data stream and the second data stream are modulated respectively to obtain a first radio frequency carrier signal and a first optical carrier signal;

[0058] Transmit the first radio frequency carrier signal and the first optical carrier signal.

[0059] Modulating the second data stream according to any method of this disclosure to obtain a first optical carrier signal includes:

[0060] The second data stream is modulated to obtain a first optical modulation signal;

[0061] Determine the differential signal of the first optical modulation signal;

[0062] The first optical modulation signal and the differential signal are respectively subjected to DC bias processing;

[0063] The first optical modulation signal and the differential signal after DC bias processing are up-converted to obtain the first optical carrier signal.

[0064] According to one aspect of this disclosure, a communication method is provided, the method being applied to a receiver according to the above aspect, the method comprising:

[0065] Receive the third radio frequency carrier signal obtained after the first radio frequency carrier signal is transmitted, and the third optical carrier signal obtained after the first optical carrier signal is transmitted;

[0066] The third radio frequency carrier signal and the third optical carrier signal are demodulated respectively to obtain the first data stream and the second data stream;

[0067] The first data stream and the second data stream are combined to obtain the first communication data.

[0068] Demodulating the third optical carrier signal to obtain a second data stream according to any method described in this disclosure includes:

[0069] The third optical carrier signal is down-converted to obtain the third optical modulation signal;

[0070] The corresponding DC bias estimate is determined based on the third optical modulation signal;

[0071] Obtain the DC bias voltage, and determine the ratio between the estimated DC bias voltage and the estimated DC bias voltage as the estimated response coefficient.

[0072] The second data stream is determined based on the third optical modulation signal and the estimated response coefficient.

[0073] According to one aspect of this disclosure, a communication method is provided, the method being applied to a receiver as described in the other aspect above, the method comprising:

[0074] The system receives a first radio frequency carrier signal and a first optical carrier signal, which are then transmitted through the main link to obtain a third radio frequency carrier signal and a third optical carrier signal, as well as a second radio frequency carrier signal and a second optical carrier signal, which are then transmitted through the reflection link to obtain a fourth radio frequency carrier signal and a fourth optical carrier signal.

[0075] The third radio frequency carrier signal and the fourth radio frequency carrier signal are demodulated to obtain the first data stream and the third data stream, and the third optical carrier signal and the fourth optical carrier signal are demodulated to obtain the second data stream and the fourth data stream;

[0076] The first data stream and the second data stream are combined to obtain the first communication data, and the third data stream and the fourth data stream are combined to obtain the second communication data.

[0077] Demodulating the third optical carrier signal and the fourth optical carrier signal according to any method of this disclosure to obtain the second data stream and the fourth data stream includes:

[0078] The third optical carrier signal and the fourth optical carrier signal are down-converted to obtain the third optical modulation signal and the fourth optical modulation signal, respectively.

[0079] Based on the third optical modulation signal and the fourth optical modulation signal, the first DC bias estimate of the main link and the second DC bias estimate of the reflection link are determined respectively.

[0080] Obtain the DC bias voltage, and determine the ratio between the first DC bias estimate and the DC bias voltage as the first response coefficient estimate of the main link, and determine the ratio between the second DC bias estimate and the DC bias voltage as the second response coefficient estimate of the reflection link;

[0081] The second data stream and the fourth data stream are determined based on the third optical modulation signal and the fourth optical modulation signal, as well as the DC bias voltage, the first response coefficient estimate, and the second response coefficient estimate.

[0082] According to one aspect of this disclosure, an electronic device is provided, including a transmitter as described in one aspect above, and / or a receiver as described in one aspect and another aspect above.

[0083] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0084] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0085] Figure 1 illustrates a schematic diagram of an optoelectronic communication system provided in an embodiment of the present disclosure.

[0086] Figure 2 illustrates a schematic diagram of the structure of an optoelectronic communication system provided in an embodiment of this disclosure.

[0087] Figure 3 illustrates a schematic diagram of the structure of a signal modulation component provided in an embodiment of this disclosure.

[0088] Figure 4 illustrates a schematic diagram of the structure of a signal transmitting component and a signal receiving component provided in an embodiment of this disclosure.

[0089] Figure 5 illustrates a top view of a signal transmitting component and a signal receiving component provided in an embodiment of this disclosure.

[0090] Figure 6 illustrates a top view of another signal transmitting component and signal receiving component provided in an embodiment of this disclosure.

[0091] Figure 7 illustrates a schematic diagram of the structure of a signal demodulation component provided in an embodiment of this disclosure.

[0092] Figure 8 illustrates a system schematic diagram of another optoelectronic communication system provided by an embodiment of the present disclosure.

[0093] Figure 9 illustrates a schematic diagram of another optoelectronic communication system provided in an embodiment of this disclosure.

[0094] Figure 10 illustrates a schematic diagram of the positions of a radio frequency reflective surface and an optically controlled reflection structure provided in an embodiment of this disclosure.

[0095] Figure 11 illustrates a schematic diagram of the position of another radio frequency reflective surface and optically controlled reflection structure provided in an embodiment of this disclosure.

[0096] Figure 12 illustrates a schematic diagram showing the position of another radio frequency reflective surface and optically controlled reflection structure provided in an embodiment of the present disclosure.

[0097] Figure 13 illustrates a schematic diagram showing the positions of a radio frequency reflective surface and an optical diffuse reflective surface provided in an embodiment of this disclosure.

[0098] Figure 14 illustrates a flowchart of a communication method provided by an embodiment of the present disclosure.

[0099] Figure 15 illustrates a flowchart of another communication method provided by an embodiment of this disclosure.

[0100] Figure 16 illustrates a flowchart of another communication method provided by an embodiment of the present disclosure.

[0101] Figure 17 illustrates a simulation test diagram using conventional methods provided by an embodiment of this disclosure.

[0102] Figure 18 illustrates a simulation test diagram of an embodiment of the present disclosure using the method shown in Figure 16.

[0103] Figure 19 illustrates a bit error rate curve provided by an embodiment of this disclosure.

[0104] Reference numerals: 10. Optoelectronic communication system; 1. Transmitter; 2. Receiver; 3. Reflection mechanism; 11. First control unit; 12. Signal modulation component; 13. Signal transmission component; 111. First data acquisition module; 112. First data distribution module; 121. First modulation module; 122. First radio frequency carrier module; 123. First optical carrier module; 124. DC bias module; 125. Second digital-to-analog converter; 1211. First radio frequency modulation module; 1212. First optical modulation module; 1221. First digital-to-analog converter; 1222. Up-converter; 1223. First filter; 1224. Power amplifier; 131. Radio frequency transmission component; 132. Optical transmission component; 133. Mounting plate; 134. Mounting hole; 1311. First radio frequency connection circuit; 1312. First radio frequency antenna; 1313. Antenna element; 1314. RF drive circuit; 1315, circuit board; 1316, RF antenna; 1321, light-emitting device; 1322, first optical antenna; 1323, light-emitting drive circuit; 21, third control unit; 22, signal demodulation component; 23, signal receiving component; 211, data transmission module; 212, data synthesis module; 221, demodulation module; 222, second RF carrier module; 223, second optical carrier module; 224, transimpedance amplifier module; 225, second analog-to-digital converter; 2211, RF demodulation module; 2212, optical demodulation module; 2221, first analog-to-digital converter; 2222, downconverter; 2223, second filter; 2224, low-noise amplifier; 231, RF receiving component; 232, optical receiving component; 2311, second RF connection circuit; 2312, second RF antenna; 2321, photodetector; 2322, second optical antenna; 31. Second control unit; 32. Second modulation module; 33. Reflective surface assembly; 311. Second data acquisition module; 312. Second data distribution module; 321. Second radio frequency modulation module; 322. Second optical modulation module; 331. Radio frequency reflection assembly; 332. Optical reflection assembly; 3311. Radio frequency driving module; 3312. Radio frequency reflective surface; 3321. Optical driving module; 3322. Optical controlled reflection structure; 3323. Optical diffuse reflection surface. Detailed Implementation

[0105] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0106] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0107] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0108] Figure 1 illustrates a schematic diagram of an optoelectronic communication system 10 provided in an embodiment of the present disclosure, and Figure 2 illustrates a schematic diagram of the structure of an optoelectronic communication system 10 provided in an embodiment of the present disclosure. As shown in Figures 1 and 2, the optoelectronic communication system 10 includes a transmitter 1 and a receiver 2. The transmitter 1 is used to transmit signals, and the receiver 2 is used to receive signals, thereby realizing communication between the transmitter 1 and the receiver 2.

[0109] Transmitter 1 can transmit carrier signals on both a radio frequency (RF) channel (i.e., an RF communication channel) and an optical channel (i.e., an optical communication channel), while receiver 2 can receive carrier signals on both the RF and optical channels. This allows communication between transmitter 1 and receiver 2 via both RF and optical channels, reducing the spectrum utilization on the RF channel and avoiding the impact of limited spectrum resources on communication. Furthermore, the dual-channel transmission via RF and optical channels, based on the electromagnetic interference-free characteristic of carrier signals on the optical channel, reduces signal interference during communication between transmitter 1 and receiver 2, lowering the bit error rate and ensuring effective communication between them. Additionally, the poor penetration of carrier signals along the optical channel ensures the security of carrier signal transmission, thereby guaranteeing the security of communication between transmitter 1 and receiver 2.

[0110] The transmitter 1 and receiver 2 included in the optoelectronic communication system 10 will be explained next.

[0111] In some embodiments, as shown in FIG2, the transmitter 1 includes: a first control unit 11, a signal modulation component 12, and a signal transmission component 13, wherein the first control unit 11 is connected to the signal modulation component 12, and the signal modulation component 12 is connected to the signal transmission component 13.

[0112] The first control unit 11 is used to receive the first communication data and divide the first communication data into a first data stream and a second data stream; the signal modulation component 12 is used to modulate the first data stream and the second data stream respectively to obtain a first radio frequency carrier signal and a first optical carrier signal; the signal transmission component 13 is used to transmit the first radio frequency carrier signal and the first optical carrier signal to the receiver 2 so that the receiver 2 can acquire the first communication data.

[0113] Thus, the first control unit 11 can divide the first communication data to be transmitted, and then modulate it based on the signal modulation component 12 to obtain the first radio frequency carrier signal and the first optical carrier signal. This allows the first radio frequency carrier signal and the first optical carrier signal to be transmitted along the radio frequency channel and the optical channel, respectively, through the signal transmission component 13. This enables dual-channel communication between the transmitter 1 and the receiver 2, thereby reducing the spectrum utilization on the radio frequency channel and reducing or even avoiding the impact of the limited spectrum resources on the radio frequency channel on communication.

[0114] In some embodiments, as shown in FIG2, the first control unit 11 includes a first data acquisition module 111 and a first data distribution module 112. The first data acquisition module 111 is connected to the first data distribution module 112, and the first data distribution module 112 is connected to the signal modulation component 12. The first data acquisition module 111 is used to receive first communication data, and the first data distribution module 112 is used to divide the first communication data into a first data stream and a second data stream.

[0115] The first communication data received by the first data acquisition module 111 can be a bit data stream or a symbolic data sequence, etc. The receiving port of the first data acquisition module 111 can be a physical port, such as a USB port or a serial port, or a protocol port, such as an Ethernet port. The first data stream and the second data stream after the first communication data are divided by the first data allocation module 112 can be bit data streams or symbolic data sequences.

[0116] When the first data stream and the second data stream after the first data allocation module 112 divides the first communication data into symbol data order, and the first communication data received by the first data acquisition module 111 is a bit data stream, the first data acquisition module 111 may perform a format conversion on the first communication data after receiving it, that is, the first data acquisition module 111 converts the first communication data from a bit data stream to a symbol data order according to the pre-configured symbol parameters (first symbol rate and first symbol width); or the first data allocation module 112 may perform a format conversion on the first communication data after receiving it, that is, the first data allocation module 112 converts the first communication data from a bit data stream to a symbol data order according to the pre-configured symbol parameters.

[0117] Of course, it is also possible that the first data allocation module 112 receives the first communication data, divides the first communication data into two parts, and then performs format conversion on the two parts of data to obtain a first data stream and a second data stream, both of which are in symbolic data order. That is, the first data allocation module 112 converts the two parts of the first communication data after division into bit data streams into symbolic data order according to the pre-configured symbol parameters. This disclosure does not limit this.

[0118] The first data allocation module 112 can divide the first communication data based on a pre-set division rule. For example, the pre-set division rule can be based on the signal-to-noise ratio of the communication channel.

[0119] For example, the first data allocation module 112 can first determine the signal-to-noise ratio (SNR) of the radio frequency channel. E Signal-to-noise ratio (SNR) of optical channels O If the signal-to-noise ratio (SNR) of the radio frequency channel ESignal-to-noise ratio (SNR) less than that of optical channels O If the difference between the two is greater than or equal to a preset value, then the importance of the first data stream of the corresponding radio frequency channel after partitioning is lower than the importance of the second data stream of the corresponding optical channel, or the file size of the first data stream of the corresponding radio frequency channel after partitioning is smaller than the file size of the second data stream of the corresponding optical channel; if the signal-to-noise ratio (SNR) of the radio frequency channel is... E The signal-to-noise ratio (SNR) is greater than that of the optical channel. O If the difference between the two is greater than or equal to a preset value, then the importance of the first data stream of the corresponding radio frequency channel after partitioning is greater than the importance of the second data stream of the corresponding optical channel, or the file size of the first data stream of the corresponding radio frequency channel after partitioning is greater than the file size of the second data stream of the corresponding optical channel; if the signal-to-noise ratio (SNR) of the radio frequency channel is... E Equal to the signal-to-noise ratio (SNR) of the optical channel O If the difference between the two is less than a preset value, then the importance of the first data stream of the corresponding radio frequency channel after the division is close to the importance of the second data stream of the corresponding optical channel, or the file size of the first data stream of the corresponding radio frequency channel after the division is close to the file size of the second data stream of the corresponding optical channel.

[0120] In some embodiments, as shown in FIG2, the signal modulation component 12 includes a first modulation module 121, a first radio frequency carrier module 122, and a first optical carrier module 123, and the signal transmission component 13 includes a radio frequency transmission component 131 and an optical transmission component 132. The first modulation module 121 is connected to the first data distribution module 112, and is also connected to the first radio frequency carrier module 122 and the first optical carrier module 123. The first radio frequency carrier module 122 is connected to the radio frequency transmission component 131, and the first optical carrier module 123 is connected to the optical transmission component 132.

[0121] The first modulation module 121 is used to modulate the first data stream and the second data stream (i.e., baseband modulation) to obtain the corresponding first radio frequency modulation signal and the first optical modulation signal. The first radio frequency carrier module 122 and the first optical carrier module 123 are used to perform up-conversion processing on the first radio frequency modulation signal and the first optical modulation signal to obtain the first radio frequency carrier signal and the first optical carrier signal. The radio frequency transmitting component 131 and the optical transmitting component 132 are used to transmit the first radio frequency carrier signal and the first optical carrier signal, respectively.

[0122] Thus, the first data stream can be transmitted along the radio frequency channel through the cooperation of the first modulation module 121, the first radio frequency carrier module 122 and the radio frequency transmission component 131, and the second data stream can be transmitted along the optical channel through the cooperation of the first modulation module 121, the first optical carrier module 123 and the optical transmission component 132.

[0123] The modulation of the first data stream and the second data stream by the first modulation module 121 can be achieved by first performing a mapping process, and then generating a first radio frequency modulation signal and a first optical modulation signal based on the mapped first and second data streams, respectively. The first radio frequency modulation signal and the first optical modulation signal obtained after modulation by the first modulation module 121 can be single-carrier signals or multi-carrier signals. Furthermore, the modulation processes of the first data stream and the second data stream by the first modulation module 121 can be the same or different. For example, the first radio frequency modulation signal obtained after modulation of the first data stream and the second data stream by the first modulation module 121 is a single-carrier signal, and the first optical modulation signal is a multi-carrier signal.

[0124] When the first modulation module 121 modulates the first data stream and the second data stream, it can perform modulation simultaneously to provide high-speed processing performance, or it can perform time-division serial modulation as needed to simplify the first modulation module 121 and save resource consumption. When the first modulation module 121 needs to modulate the first data stream and the second data stream simultaneously, as shown in Figures 2 and 3, the first modulation module 121 includes a first radio frequency modulation module 1211 and a first optical modulation module 1212; the first radio frequency modulation module 1211 and the first optical modulation module 1212 are both connected to the first data distribution module 112, and are respectively connected to the first radio frequency carrier module 122 and the first optical carrier module 123.

[0125] The first radio frequency modulation module 1211 modulates the first data stream to obtain a first radio frequency modulated signal, and the first optical modulation module 1212 modulates the second data stream to obtain a first optical modulated signal. The specific structures of the first radio frequency modulation module 1211 and the first optical modulation module 1212 can be the same or different, and correspondingly, the modulation methods for the first and second data streams can be the same or different. Furthermore, the baseband modulation involved in this disclosure can actually be a time-series conversion of the data stream, i.e., obtaining the time-domain signal corresponding to the data stream.

[0126] For example, taking the modulation of the second data stream by the first optical modulation module 1212 as an example, the second data stream can be mapped by a pulse waveform with a pulse amplitude of unit amplitude, and then the first optical modulation signal corresponding to the second data stream can be generated based on the mapped second data stream. When performing the mapping process, the specific pulse waveform can be selected according to the corresponding pulse function as needed.

[0127] In some embodiments, as shown in FIG3, the first radio frequency carrier module 122 includes a first digital-to-analog converter 1221, an upconverter 1222, a first filter 1223 and a power amplifier 1224, which are sequentially connected between the first modulation module 121 and the radio frequency transmitting component 131.

[0128] The first radio frequency modulation signal received by the first radio frequency carrier module 122 is a digital signal. It can be converted from digital to analog signal by the first digital-to-analog converter 1221 to obtain an analog signal. Then, based on the high-frequency carrier signal generated by the up-converter 1222, the analog signal of the first radio frequency modulation signal is modulated onto the high-frequency carrier signal, completing the up-conversion processing of the first radio frequency modulation signal. After filtering and power amplification of the first radio frequency modulation signal obtained after the up-conversion processing, the first radio frequency carrier signal corresponding to the first radio frequency modulation signal can be obtained, facilitating transmission by the radio frequency transmitting component 131.

[0129] The specific structures and processing methods of the first digital-to-analog converter 1221, up-converter 1222, first filter 1223, and power amplifier 1224 can all refer to relevant technologies. For example, the conversion method of the first digital-to-analog converter 1221 can be to input a digital signal (first radio frequency modulation signal) with the same period in each sampling clock cycle, and obtain the corresponding analog signal (first radio frequency modulation signal) based on the stored conversion relationship between the digital signal and the analog signal and the reference voltage value. The modulation method of the up-converter 1222 can be implemented through an analog multiplier or a quadrature modulation circuit.

[0130] In some embodiments, as shown in Figures 2 and 4, the radio frequency transmitting assembly 131 includes a first radio frequency connection circuit 1311 and a first radio frequency antenna 1312. The first radio frequency connection circuit 1311 is connected to the first radio frequency carrier module 122, and the first radio frequency antenna 1312 is connected to the first radio frequency connection circuit 1311. Thus, the first radio frequency carrier signal can be received through the first radio frequency connection circuit 1311 and fed into the first radio frequency antenna 1312 for transmission through the first radio frequency antenna 1312.

[0131] The first radio frequency antenna 1312 is a transmitting antenna and may include a single antenna element 1313 or multiple antenna elements 1313 arranged in an array. When the first radio frequency antenna 1312 includes multiple antenna elements 1313, the first radio frequency connection circuit 1311 includes at least a splitter to ensure that the first radio frequency carrier signal can be fed into each antenna element 1313. At the same time, the multiple antenna elements 1313 can use diversity technology or spatial multiplexing technology to transmit the first radio frequency carrier signal outward, so as to ensure the transmission effect of the first radio frequency carrier signal based on diversity gain or multiplexing gain.

[0132] The first radio frequency antenna 1312 can be a printed circuit antenna integrated with the first radio frequency connection circuit 1311, or it can be an external antenna connected to the first radio frequency connection circuit 1311. When the first radio frequency antenna 1312 is a printed circuit antenna, as shown in FIG5, the first radio frequency antenna 1312 includes a circuit board 1315 on which a radio frequency driving circuit 1314 is arranged, and a radio frequency patch integrated on the circuit board 1315, and is connected to the first radio frequency connection circuit 1311 through the radio frequency driving circuit 1314, and transmits a first radio frequency carrier signal outward through the radio frequency patch; when the first radio frequency antenna 1312 is an external antenna, the first radio frequency antenna 1312 can be fixed separately, or as shown in FIG6, the signal transmitting assembly 13 includes a mounting plate 133, and the first radio frequency antenna 1312 is fixed on the mounting plate 133.

[0133] The specific structure of the first optical carrier module 123 included in the signal modulation component 12 can be referred to in relevant technologies, as long as it can achieve up-conversion processing of the first optical modulation signal.

[0134] In some embodiments, as shown in FIG3, the signal modulation component 12 further includes a DC bias module 124, which is connected between the first modulation module 121 (i.e., the first optical modulation module 1212) and the first optical carrier module 123, and is used to perform DC bias processing on the first optical modulation signal.

[0135] The DC bias module 124 is used to couple the DC bias signal (such as a stable DC bias voltage) with the first optical modulation signal, so as to ensure that the first optical modulation signal can be transmitted outward through the optical transmitting component 132 after up-conversion.

[0136] For example, the DC bias module 124 can be a bias-Tee circuit, and specific examples of bias-Tee circuits can be found in related technologies. For example, the bias-Tee circuit is a circuit composed of ultra-wideband, near-idealized, high-frequency inductors and capacitors without resonant points, and has an input terminal for a DC bias signal, an input terminal for a first optical modulation signal (connected to the first optical modulation module 1212), and an output terminal for a coupled signal (connected to the first optical carrier module 123). Furthermore, the DC bias module 124 can be a circuit module composed of interconnected electrical components, or it can be a chip packaged from electrical components.

[0137] Furthermore, when modulating the first optical modulation signal using the DC bias module 124, DC bias processing can be performed directly, followed by up-conversion processing of the DC-biased first optical modulation signal using the first optical carrier module 123 to obtain a first optical carrier signal containing only the first optical modulation signal. Alternatively, the corresponding differential signal can be determined first based on the first optical modulation signal, then both the first optical modulation signal and the differential signal can be DC-biased using the DC bias module 124, and then both the DC-biased first optical modulation signal and the differential signal can be up-converted using the first optical carrier module 123 to obtain a first optical carrier signal containing both the first optical modulation signal and the differential signal. Thus, for a first optical carrier signal containing both the first optical modulation signal and the differential signal, it is easier to ensure the accuracy of the second data stream transmission.

[0138] Furthermore, the first optical modulation signal received by the DC bias module 124 is a digital signal. To facilitate carrier modulation, as shown in Figure 3, a second digital-to-analog converter 125 is also connected to the input terminal of the DC bias module 124. The second digital-to-analog converter 125 is also connected to the first optical modulation module 1212. In this way, the first optical modulation signal can be converted from digital to analog by the second digital-to-analog converter 125 to obtain the analog signal of the first optical modulation signal, thereby facilitating the DC bias processing of the first optical modulation signal by the DC bias module 124.

[0139] The conversion method of the second digital-to-analog converter 125 can refer to related technologies. For example, it can be that a digital signal (first optical modulation signal) with the same period is input in each sampling clock cycle, and the corresponding analog signal (first optical modulation signal) is obtained according to the reference voltage value based on the stored conversion relationship between the digital signal and the analog signal.

[0140] In some embodiments, as shown in Figures 2 and 4, the optical emitting component 132 includes a light-emitting device 1321, which is connected to the first optical carrier module 123. In this way, the first optical carrier signal output by the first optical carrier module 123 can be emitted outward through the light-emitting device 1321 to realize the transmission of the signal.

[0141] The light-emitting device 1321 is used to emit coherent light, such as a laser, or it can be used to emit incoherent light, such as a light-emitting diode. The optical emitting assembly 132 may include a single light-emitting device 1321 or multiple devices arranged in an array. When multiple light-emitting devices 1321 are included, they can use diversity or spatial multiplexing techniques to emit a first optical carrier signal, ensuring the transmission effect of the first optical carrier signal based on diversity gain or multiplexing gain.

[0142] In addition, to prevent the first optical carrier signal from having a negative signal value at a certain moment, which would cause the light-emitting device 1321 to not emit light and thus affect the signal transmission, the optical emission assembly 132 also includes a light-emitting driving circuit 1323 connected to the light-emitting device 1321. That is, the light-emitting driving circuit 1323 provides a certain driving voltage to the light-emitting device 1321 to ensure that even if the signal value of the first optical carrier signal is negative at a certain moment, the light-emitting device 1321 can still emit light normally.

[0143] Of course, the first optical carrier signal can also be electro-optically modulated before the first optical carrier signal drives the light-emitting device 1321 to emit light. For example, the first optical carrier signal can be input into an electro-optic modulator for pre-modulation, and then the light-emitting device 1321 can be driven to emit light based on the modulated first optical carrier signal, so as to ensure the reliability of the light-emitting device 1321 emitting light.

[0144] It should be noted that, in conjunction with the first radio frequency antenna 1312 described above, when the first radio frequency antenna 1312 is a printed circuit antenna, as shown in Figure 5, the radio frequency driving circuit 1314 included in the first radio frequency antenna 1312 can be integrated with the light-emitting driving circuit 1323 on the same circuit board 1315 to simplify the structure of the signal transmitting component 13.

[0145] In some embodiments, as shown in FIG4, the optical emitting assembly 132 includes a first optical antenna 1322, which is located on the light-emitting side of the light-emitting device 1321. In this way, the light beam emitted by the light-emitting device 1321 can be adjusted by the first optical antenna 1322 to ensure that the emitted light beam can reach the receiver 2, or reach the receiver 2 and the reflecting mechanism 3.

[0146] The first optical antenna 1322 may be a device composed of a single lens or a device composed of a lens group, etc. In addition, the optical transmitting assembly 132 may include a single first optical antenna 1322 as shown in FIG6, or it may include multiple first optical antennas 1322 distributed in an array as shown in FIG5. This disclosure does not limit the specific type of first optical antenna.

[0147] It should be noted that, considering the aforementioned first radio frequency antenna 1312 is an external antenna and the signal transmitting assembly 13 includes a mounting plate 133, as shown in Figure 6, the mounting plate 133 has mounting holes 134, and the first optical antenna 1322 is confined within the mounting holes 134. Further, as shown in Figure 6, the first radio frequency antenna 1312 includes multiple antenna elements 1313, which are uniformly distributed circumferentially around the first optical antenna 1322.

[0148] In some embodiments, as shown in FIG2, the receiver 2 includes a signal receiving component 23, a signal demodulation component 22, and a third control unit 21. The signal receiving component 23 is connected to the signal demodulation component 22, and the signal demodulation component 22 is connected to the third control unit 21.

[0149] The signal receiving component 23 is used to receive the first radio frequency carrier signal and the first optical carrier signal transmitted by the transmitter 1, so as to obtain the third radio frequency carrier signal and the third optical carrier signal after transmission, respectively; the signal demodulation component 22 is used to demodulate the third radio frequency carrier signal and the third optical carrier signal, respectively, to obtain the first data stream and the second data stream; the third control unit 21 is used to combine the first data stream and the second data stream to obtain the first communication data.

[0150] Thus, the signal receiving component 23 can be connected to the transmitter 1 described in the above embodiment to receive the first radio frequency carrier signal and the first optical carrier signal. Then, the received third radio frequency carrier signal and the third optical carrier signal are demodulated to obtain the first data stream and the second data stream that the transmitter 1 needs to transmit. The first data stream and the second data stream are combined by the third control unit 21 to obtain the first communication data, thus completing the communication between the transmitter 1 and the receiver 2.

[0151] The first radio frequency (RF) carrier signal, when transmitted along the RF channel, is affected not only by the channel response coefficient but also by noise contamination on the RF channel. This results in the RF carrier signal received by the signal receiving component 23 differing from the RF carrier signal transmitted by the transmitter 1. In other words, the third RF carrier signal refers to the RF carrier signal after the influence of the channel response coefficient and noise contamination on the first RF carrier signal. Similarly, the first optical carrier signal, when transmitted along the optical channel, is affected not only by the channel response coefficient but also by noise contamination on the optical channel. This also results in the optical carrier signal received by the signal receiving component 23 differing from the optical carrier signal transmitted by the transmitter 1. In other words, the third optical carrier signal refers to the optical carrier signal after the influence of the channel response coefficient and noise contamination on the first optical carrier signal.

[0152] In some embodiments, as shown in FIG2, the third control unit 21 includes a data synthesis module 212, which is connected to the signal demodulation component 22. The data synthesis module 212 is used to acquire a first data stream and a second data stream, and synthesize the first data stream and the second data stream into first communication data.

[0153] The first data stream and the second data stream received by the data synthesis module 212 can be bit data streams or symbolic data sequences, etc. The method by which the data synthesis module 212 synthesizes the first data stream and the second data stream can refer to the method of dividing the first communication data described in the above embodiments, and will not be repeated here.

[0154] Additionally, as shown in Figure 2, the third control unit 21 also includes a data transmission module 211, which is connected to the data synthesis module 212. The data transmission module 211 is used to acquire the first communication data and transmit it outwards.

[0155] The data sending module 211 can send the first communication data through a physical port, such as a USB port or a serial port, or a protocol port, such as an Ethernet port; and the first communication data sent by the data sending module 211 can be a bit data stream or a symbolic data sequence.

[0156] When the first data stream and the second data stream received by the data synthesis module 212 are in symbol data order, while the first communication data sent by the data transmission module 211 is in bit data stream, the data synthesis module 212 may perform format conversion on the first data stream and the second data stream after receiving them, so as to obtain a first data stream and a second data stream in bit data stream format. That is, the data synthesis module 212 converts the first data stream and the second data stream from symbol data order to bit data stream according to the pre-configured symbol parameters (second symbol rate and second symbol width), and then synthesizes the first data stream and the second data stream in bit data stream format to obtain the first communication data in bit data stream format.

[0157] Alternatively, the data synthesis module 212 can first synthesize the received first data stream and second data stream, and then convert the synthesized first communication data according to the pre-configured symbol parameters to obtain the first communication data in the format of a bit data stream; or the data sending module 211 can receive the first communication data sent by the data synthesis module 212, convert the format according to the pre-configured symbol parameters to obtain the first communication data in the format of a bit data stream, and then send it outward.

[0158] Wherein, the ratio of the first symbol rate to the second symbol rate and the ratio of the first symbol width to the second symbol width are both L, and L is a positive real number.

[0159] In some embodiments, as shown in FIG2, the signal demodulation component 22 includes a demodulation module 221, a second radio frequency carrier module 222, and a second optical carrier module 223. The signal receiving component 23 includes a radio frequency receiving component 231 and an optical receiving component 232. The demodulation module 221 is connected to the data synthesis module 212 and to the second radio frequency carrier module 222 and the second optical carrier module 223. The second radio frequency carrier module 222 is connected to the radio frequency receiving component 231, and the second optical carrier module 223 is connected to the optical receiving component 232.

[0160] The radio frequency receiving component 231 and the optical receiving component 232 are used to receive the first radio frequency carrier signal and the first optical carrier signal respectively, so as to obtain the third radio frequency carrier signal and the third optical carrier signal respectively. The second radio frequency carrier module 222 and the second optical carrier module 223 are used to perform down-conversion processing on the third radio frequency carrier signal and the third optical carrier signal respectively, so as to obtain the third radio frequency modulation signal and the third optical modulation signal. The demodulation module 221 is used to demodulate the third radio frequency modulation signal and the third optical modulation signal respectively, so as to obtain the first data stream and the second data stream.

[0161] Thus, the first data stream transmitted along the radio frequency channel can be received through the cooperation of the demodulation module 221, the second radio frequency carrier module 222 and the radio frequency receiving component 231, and the second data stream transmitted along the optical channel can be received through the cooperation of the demodulation module 221, the second optical carrier module 223 and the optical receiving component 232.

[0162] It should be noted that since transmitter 1 may transmit the first optical carrier signal in the form of incoherent light, the third optical carrier signal received by optical receiving component 232 may also be incoherent. Therefore, before the second optical carrier module 223 performs down-conversion processing on the third optical carrier signal and before the demodulation module 221 demodulates the third optical modulation signal, the estimated value of the optical channel response coefficient during the transmission of the first optical carrier signal can be determined based on the third optical modulation signal. Then, based on the estimated value of the response coefficient, the demodulation module 221 demodulates the third optical modulation signal to obtain the second data stream, as described in the following implementation method.

[0163] In some embodiments, as shown in Figures 2 and 4, the radio frequency receiving component 231 includes a second radio frequency connection circuit 2311 and a second radio frequency antenna 2312. The second radio frequency connection circuit 2311 is connected to the second radio frequency carrier module 222, and the second radio frequency antenna 2312 is connected to the second radio frequency connection circuit 2311. Thus, a first radio frequency carrier signal can be received through the second radio frequency antenna 2312, and the received third radio frequency carrier signal can be transmitted along the second radio frequency connection circuit 2311 to the second radio frequency carrier module 222.

[0164] The second radio frequency antenna 2312 is a receiving antenna and may include a single antenna element 1313 or multiple antenna elements 1313 arranged in an array. When the second radio frequency antenna 2312 includes multiple antenna elements 1313, the second radio frequency connection circuit 2311 includes at least a combiner to ensure that the third radio frequency carrier signal received by the multiple antenna elements 1313 can be transmitted to the second radio frequency carrier module 222 along the second radio frequency connection circuit 2311. At the same time, the multiple antenna elements 1313 can use diversity technology or spatial multiplexing technology to receive the first radio frequency carrier signal, so as to ensure the reception effect of the first radio frequency carrier signal based on diversity gain or multiplexing gain.

[0165] The second radio frequency antenna 2312 can be a printed circuit antenna integrated with the second radio frequency connection circuit 2311, or it can be an external antenna connected to the second radio frequency connection circuit 2311. When the second radio frequency antenna 2312 is a printed circuit antenna, it includes a circuit board 1315 on which the radio frequency driving circuit 1314 is arranged, and a radio frequency patch integrated on the circuit board 1315. It is then connected to the second radio frequency connection circuit 2311 through the radio frequency driving circuit 1314 and receives the first radio frequency carrier signal through the radio frequency patch. When the second radio frequency antenna 2312 is an external antenna, it can be fixed separately, or the signal receiving component 23 includes a mounting plate 133, and the second radio frequency antenna 2312 is fixed on the mounting plate 133.

[0166] In some embodiments, as shown in Figures 2 and 7, the second radio frequency carrier module 222 includes a first analog-to-digital converter 2221, a downconverter 2222, a second filter 2223, and a low-noise amplifier 2224, which are sequentially connected between the demodulation module 221 and the radio frequency receiving component 231.

[0167] In this process, after receiving the third radio frequency carrier signal, the second radio frequency carrier module 222 first performs low-noise amplification, then filtering, and finally demodulates the third radio frequency carrier signal based on the down-conversion process of the down-converter 2222. Since the demodulated third radio frequency modulation signal is an analog signal, it can be converted from analog to digital by the first analog-to-digital converter 2221 to obtain the digital signal of the third radio frequency modulation signal, so as to facilitate the demodulation of the third radio frequency modulation signal by the demodulation module 221.

[0168] The specific structures and processing methods of the first analog-to-digital converter 2221, downconverter 2222, second filter 2223, and low-noise amplifier 2224 can all refer to relevant technologies. For example, the conversion method of the first digital-to-analog converter 1221 can be to sample the input analog signal (third radio frequency modulation signal) in each sampling clock cycle, and obtain the corresponding digital signal (third radio frequency modulation signal) based on the conversion relationship between analog and digital signals and the reference voltage value. The modulation method of the downconverter 2222 can be implemented by analog multiplier or quadrature modulation circuit.

[0169] In some embodiments, as shown in Figures 2 and 4, the optical receiving component 232 includes a photodetector 2321, which is connected to the second optical carrier module 223. Thus, the photodetector 2321 can acquire the third optical carrier signal, convert it into a current signal, and transmit it to the second optical carrier module 223, thereby achieving the reception of the third optical carrier signal.

[0170] The photodetector 2321 can be used to collect coherent light, such as an avalanche photodiode, or it can be used to collect incoherent light, such as a photodiode. The optical receiving assembly 232 can include a single photodetector 2321 or multiple photodetectors arranged in an array. When multiple photodetectors 2321 are included, they can use diversity or spatial multiplexing techniques to receive the first optical carrier signal, ensuring the reception effect of the first optical carrier signal based on diversity gain or multiplexing gain.

[0171] In some embodiments, as shown in FIG4, the optical receiving component 232 includes a second optical antenna 2322, which is located on the light-incident side of the photodetector 2321. Thus, the second optical antenna 2322 can shape the light beam to be collected by the photodetector 2321, thereby improving the light beam collection effect of the photodetector 2321, while ensuring that the light beam emitted from the transmitter 1, or the light beam emitted from the transmitter 1 and the light beam reflected by the reflecting mechanism 3, can be collected.

[0172] The second optical antenna 2322 can be a device composed of a single lens or a device composed of a lens group, etc. In addition, the optical receiving component 232 may include one second optical antenna 2322 or multiple second optical antennas 2322 distributed in an array, and the embodiments disclosed herein are not limited in this respect.

[0173] The specific structure of the second optical carrier module 223 included in the signal demodulation component 22 can be referred to in relevant technologies, as long as it can achieve down-conversion processing of the third optical carrier signal.

[0174] In some embodiments, as shown in FIG7, the signal demodulation component 22 further includes a transimpedance amplification module 224, which is connected between the demodulation module 221 (i.e., the optical demodulation module 2212) and the second optical carrier module 223, and is used to perform transimpedance amplification processing on the third optical modulation signal.

[0175] The third optical carrier signal received by the second optical carrier module 223 is a current signal, and the transimpedance amplifier module 224 is used to amplify and convert the current signal into a voltage signal so that the demodulation module 221 can demodulate the third optical modulation signal.

[0176] For example, the transimpedance amplifier module 224 can be a TIA (Transimpedance Amplifier), and specific TIAs can be found in related technologies. For example, the TIA is a circuit composed of an operational amplifier and a transimpedance amplifier, and has an input terminal for a third optical modulation signal (connected to the second optical carrier module 223), an input terminal for a drive signal, and an output terminal for amplified transimpedance signal (connected to the optical demodulation module 2212). Furthermore, the transimpedance amplifier module 224 can be a circuit module composed of interconnected electrical components, or it can be a chip packaged from electrical components.

[0177] Furthermore, the third optical modulation signal demodulated by the second optical carrier module 223 is an analog signal. As shown in Figure 7, the output of the transimpedance amplifier module 224 is also connected to a second analog-to-digital converter 225, which is further connected to the optical demodulation module 2212. In this way, the second analog-to-digital converter 225 can convert the analog third optical modulation signal into a digital third optical modulation signal, facilitating demodulation processing of the third optical modulation signal by the optical demodulation module 2212.

[0178] The conversion method of the second analog-to-digital converter 225 can refer to related technologies. For example, it can sample the input analog signal (third optical modulation signal) in each sampling clock cycle, and obtain the corresponding digital signal (third optical modulation signal) based on the stored conversion relationship between analog and digital signals and the reference voltage value.

[0179] The demodulation module 221 included in the signal demodulation component 22 can be demodulated simultaneously after receiving the third radio frequency modulation signal and the third optical modulation signal to provide high-speed processing performance, or it can be demodulated serially in a time-division manner as needed to simplify the demodulation module 221 and save resource consumption.

[0180] Furthermore, since the third radio frequency modulation signal and the third optical modulation signal are received through the radio frequency channel and the optical channel respectively, and based on the uncorrelation between the radio frequency channel and the optical channel, the third radio frequency modulation signal and the third optical modulation signal can be demodulated separately. Specifically, as shown in Figure 7, the demodulation module 221 includes a radio frequency demodulation module 2211 and an optical demodulation module 2212; both the radio frequency demodulation module 2211 and the optical demodulation module 2212 are connected to the third control unit 21, and are also connected to the second radio frequency carrier module 222 and the second optical carrier module 223 respectively.

[0181] The radio frequency (RF) demodulation module 2211 demodulates the third RF modulation signal to obtain a first data stream, and the optical demodulation module 2212 demodulates the third optical modulation signal to obtain a second data stream. The demodulation of the third RF modulation signal by the RF demodulation module 2211 can be performed with reference to relevant technologies. When the optical demodulation module 2212 demodulates the third optical modulation signal, since the third optical modulation signal can be acquired based on incoherent light acquisition, it needs to be preprocessed first, and then demodulated based on the preprocessed third optical modulation signal to obtain the second data stream. The specific demodulation process of the third optical modulation signal by the optical demodulation module 2212 can be found in the following implementation method.

[0182] Figure 8 illustrates a schematic diagram of another optoelectronic communication system 10 provided in this embodiment of the present disclosure, and Figure 9 illustrates a schematic diagram of the structure of another optoelectronic communication system 10 provided in this embodiment of the present disclosure. As shown in Figures 8 and 9, the optoelectronic communication system 10 includes a transmitter 1, a receiver 2, and a reflector 3. The transmitter 1 is used to transmit signals, the reflector 3 is used to reflect the signals transmitted by the transmitter 1, and the receiver 2 is used to receive the signals transmitted by the transmitter 1 and the signals reflected by the reflector 3, thereby realizing communication between the transmitter 1, the reflector 3, and the receiver 2. In this case, the optoelectronic communication system 10 composed of the transmitter 1, the reflector 3, and the receiver 2 is an optoelectronic symbiotic communication system, and the communication link formed between the transmitter 1 and the receiver 2 can be a main link, and the communication link formed between the reflector 3 and the receiver 2 can be a reflective link.

[0183] Transmitter 1 can transmit carrier signals on both the radio frequency (RF) channel (i.e., the RF communication channel) and the optical channel (i.e., the optical communication channel). Reflection mechanism 3 can transmit carrier signals on both the RF and optical channels. Receiver 2 can receive carrier signals on both the RF and optical channels. Thus, communication between transmitter 1, reflection mechanism 3, and receiver 2 can be achieved through both the RF and optical channels, reducing the spectrum utilization on the RF channel and avoiding the impact of limited spectrum resources on communication. Furthermore, through dual-channel transmission on both the RF and optical channels, and leveraging the electromagnetic interference-free characteristic of carrier signals on the optical channel, signal interference during communication is reduced, lowering the bit error rate and ensuring effective communication. Additionally, the poor penetration of carrier signals along the optical channel ensures the security of carrier signal transmission on the optical channel, thereby guaranteeing the security of communication between transmitter 1 and receiver 2.

[0184] The transmitter 1, the reflector 3, and the receiver 2 included in the optoelectronic communication system 10 will be explained in detail below.

[0185] The specific structure of transmitter 1 and the specific method of transmitting signals can be referred to the above embodiments. The only difference is that in the above embodiments, the first radio frequency carrier signal and the first optical carrier signal transmitted by transmitter 1 only need to be received by receiver 2, while in the embodiments of this disclosure, the first radio frequency carrier signal and the first optical carrier signal transmitted by transmitter 1 need to be received by receiver 2 and simultaneously need to be reflected by reflection mechanism 3.

[0186] In some embodiments, as shown in FIG9, the reflection mechanism 3 includes: a second control unit 31, a second modulation module 32 and a reflective surface assembly 33. The reflective surface assembly 33 includes a radio frequency reflection assembly 331 and an optical reflection assembly 332. The second control unit 31 is connected to the second modulation module 32, and the second modulation module 32 is connected to the radio frequency reflection assembly 331 and the optical reflection assembly 332.

[0187] The second control unit 31 is used to receive the second communication data and divide the second communication data into a third data stream and a fourth data stream; the second modulation module 32 is used to modulate the third data stream and the fourth data stream respectively to obtain a second radio frequency modulation signal and a second optical modulation signal; the radio frequency reflection component 331 is used to adjust the reflection coefficient through the second radio frequency modulation signal so that when the first radio frequency carrier signal emitted by the transmitter 1 is incident on the radio frequency reflection component 331, the second radio frequency modulation signal is loaded onto the first radio frequency carrier signal, and the second radio frequency carrier signal obtained after loading is reflected to the receiver 2; the optical reflection component 332 is used to adjust the reflection coefficient through the second optical modulation signal so that when the first optical carrier signal emitted by the transmitter 1 is incident on the optical reflection component 332, the second optical modulation signal is loaded onto the first optical carrier signal, and the second optical carrier signal obtained after loading is reflected to the receiver 2, so that the receiver 2 receives the second communication data.

[0188] Thus, the second communication data to be transmitted is divided by the second control unit 31 and then modulated based on the second modulation module 32 to obtain a second radio frequency modulation signal and a second optical modulation signal. This allows the second radio frequency modulation signal to be loaded onto the first radio frequency carrier signal when the first radio frequency carrier signal arrives at the radio frequency reflection component 331, and the second radio frequency carrier signal to be reflected. Similarly, the second optical modulation signal is loaded onto the first optical carrier signal when the first optical carrier signal arrives at the optical reflection component 332, and the second optical carrier signal to be reflected.

[0189] In some embodiments, as shown in FIG9, the second control unit 31 includes a second data acquisition module 311 and a second data distribution module 312. The second data acquisition module 311 is connected to the second data distribution module 312, and the second data distribution module 312 is connected to the second modulation module 32. The second data acquisition module 311 is used to receive second communication data, and the second data distribution module 312 is used to divide the second communication data into a third data stream and a fourth data stream.

[0190] The second communication data received by the second data acquisition module 311 can be a bit data stream or a symbolic data sequence, etc. The receiving port of the second data acquisition module 311 can be a physical port, such as a USB port or a serial port, or a protocol port, such as an Ethernet port. The third and fourth data streams after the second communication data are divided by the second data allocation module 312 can be bit data streams or symbolic data sequences.

[0191] When the second data allocation module 312 divides the second communication data into a third and fourth data streams in symbolic order, while the second communication data received by the second data acquisition module 311 is a bit data stream, the second data acquisition module 311 may perform a format conversion on the second communication data after receiving it, that is, the second data acquisition module 311 converts the second communication data from a bit data stream to a symbolic data order according to the pre-configured symbol parameters (symbol rate and symbol width); or the second data allocation module 312 may perform a format conversion on the second communication data after receiving it, that is, the second data allocation module 312 converts the second communication data from a bit data stream to a symbolic data order according to the pre-configured symbol parameters (symbol rate and symbol width).

[0192] Of course, the second data allocation module 312 may receive the second communication data, divide the second communication data into two parts, and then perform format conversion on these two parts of data to obtain a third data stream and a fourth data stream, both of which are in symbol data order. That is, the second data allocation module 312 converts the two parts of the second communication data after division from bit data stream to symbol data order according to the pre-configured symbol parameters (symbol rate and symbol width). This disclosure does not limit this aspect.

[0193] The method by which the second data allocation module 312 divides the second communication data can refer to the allocation of the first communication data by the first data allocation module 112 described in the above-described embodiment, and will not be repeated here in this embodiment.

[0194] For the second modulation module 32 included in the reflection mechanism 3, after receiving the third data stream and the fourth data stream, the modulation process of the third data stream and the fourth data stream can refer to the modulation of the first data stream and the second data stream by the first modulation module 121 described in the above embodiment.

[0195] For example, as shown in FIG9, the second modulation module 32 includes a second radio frequency modulation module 321 and a second optical modulation module 322; both the second radio frequency modulation module 321 and the second optical modulation module 322 are connected to the second control unit 31, and are respectively connected to the radio frequency reflection component 331 and the optical reflection component 332.

[0196] The second radio frequency modulation module 321 modulates the third data stream to obtain a second radio frequency modulated signal, and the second optical modulation module 322 modulates the fourth data stream to obtain a second optical modulated signal. The specific structures of the second radio frequency modulation module 321 and the second optical modulation module 322 can be the same or different, and correspondingly, the modulation methods for the third and fourth data streams can be the same or different.

[0197] For example, taking the modulation of the fourth data stream by the second optical modulation module 322 as an example, the fourth data stream can be mapped by a pulse waveform with a pulse amplitude of unit amplitude, and then the second optical modulation signal corresponding to the fourth data stream can be generated based on the mapped fourth data stream. When performing the mapping process, the specific pulse waveform can be selected according to the corresponding pulse function as needed.

[0198] In some embodiments, as shown in FIG9, the radio frequency reflection component 331 includes a radio frequency driving module 3311 and a radio frequency reflecting surface 3312. The radio frequency driving module 3311 is connected to the second modulation module 32 (second radio frequency modulation module 321) and to the radio frequency reflecting surface 3312.

[0199] In this way, the second radio frequency modulation signal can be received by the radio frequency driving module 3311, and the reflection coefficient of the radio frequency reflector 3312 can be adjusted based on the second radio frequency modulation signal. At the same time, when the first radio frequency carrier signal is incident on the radio frequency reflector 3312, the second radio frequency modulation signal is loaded onto the first radio frequency carrier signal, and the second radio frequency carrier signal obtained after loading is reflected, thereby realizing the transmission of the third data stream.

[0200] The specific structure of the radio frequency driving module 3311 and the radio frequency reflective surface 3312 can be referred to in related technologies. This disclosure does not limit the specific structure of these components, as long as the second radio frequency modulation signal can be loaded onto the first radio frequency carrier signal to reflect the second radio frequency carrier signal.

[0201] In some embodiments, as shown in FIG9, the optical reflection component 332 includes an optical driving module 3321 and an optical controlled reflection structure 3322; the optical driving module 3321 is connected to the second modulation module 32 (the second optical modulation module 322) and to the optical controlled reflection structure 3322.

[0202] Thus, the second optical modulation signal can be received by the optical drive module 3321, and the reflection coefficient of the optical controlled reflection structure 3322 can be adjusted based on the second optical modulation signal. At the same time, when the first optical carrier signal is incident on the optical controlled reflection structure 3322, the second optical modulation signal is loaded onto the first optical carrier signal, and the second optical carrier signal obtained after loading is reflected, thereby realizing the transmission of the fourth data stream.

[0203] The optical drive module 3321 can refer to relevant technologies, and the optical controlled reflection structure 3322 can be a light reflector or an optical controlled reflection surface, etc., so as to ensure the reliability of the third optical carrier signal after the first optical carrier signal is reflected by the optical controlled reflection structure 3322.

[0204] In conjunction with the aforementioned radio frequency reflective surface 3312, when the optically controlled reflection structure 3322 is a light reflector, as shown in Figure 10, the optically controlled reflection structure 3322 is integrated onto the radio frequency reflective surface 3312 to simplify the structure of the reflective surface assembly 33. When the optically controlled reflection structure 3322 is an optically controlled reflection surface, the radio frequency reflective surface 3312 can be configured as a light-transmitting structure. In this case, as shown in Figure 11 or Figure 12, the radio frequency reflective surface 3312 and the optically controlled reflection surface can be stacked, and the radio frequency reflective surface 3312 is located in the optical path between the transmitter 1 and the optically controlled reflection surface to save space occupied by the reflective surface assembly 33. For example, as shown in Figure 11, the radio frequency reflective surface 3312 and the optically controlled reflection surface are set in close contact, or as shown in Figure 12, the radio frequency reflective surface 3312 and the optically controlled reflection surface are set at intervals.

[0205] In some embodiments, as shown in FIG13, the optical reflection assembly 332 further includes an optical diffuse reflection surface 3323, which is located in the optical path between the optical controlled reflection structure 3322 and the receiver 2.

[0206] The optical diffuse reflection surface 3323 can be a display surface of a white screen, a display surface of a white wall, etc. In this way, when transmitting the fourth data stream through the optical reflection component 332, not only is the communication effect guaranteed, but the display of the image can also be realized, thereby increasing user engagement.

[0207] In conjunction with the radio frequency reflective surface 3312 described above, the radio frequency reflective surface 3312 can be configured as a light-transmitting structure. As shown in Figure 13, the radio frequency reflective surface 3312 and the optical diffuse reflective surface 3323 are stacked together, and the radio frequency reflective surface 3312 is located in the optical path between the optical controlled reflection structure 3322 and the optical diffuse reflective surface 3323, so as to save space occupied by the reflective surface assembly 33.

[0208] In this embodiment of the disclosure, the receiver 2 included in the optoelectronic communication system 10 can be specifically structured with reference to the receiver 2 described in the above embodiments. The difference lies in the fact that the communication data to be received by the receiver 2 is different, which makes the processing of the received carrier signal by each structural component of the receiver 2 slightly different.

[0209] For example, receiver 2 includes: signal receiving component 23, signal demodulation component 22 and third control unit 21, the signal receiving component 23 is connected to the signal demodulation component 22 and the signal demodulation component 22 is connected to the third control unit 21.

[0210] The signal receiving component 23 is used to receive the first radio frequency carrier signal and the first optical carrier signal transmitted by the transmitter 1 to obtain the third radio frequency carrier signal and the third optical carrier signal after transmission, respectively, and to receive the second radio frequency carrier signal and the second optical carrier signal reflected by the reflection mechanism 3 to obtain the fourth radio frequency carrier signal and the fourth optical carrier signal after transmission, respectively; the signal demodulation component 22 is used to demodulate the third radio frequency carrier signal and the fourth radio frequency carrier signal to obtain the first data stream and the third data stream, and to demodulate the third optical carrier signal and the fourth optical carrier signal to obtain the second data stream and the fourth data stream; the third control unit 21 is used to combine the first data stream and the second data stream to obtain the first communication data, and to combine the third data stream and the fourth data stream to obtain the second communication data.

[0211] The first radio frequency carrier signal and the first optical carrier signal are transmitted along the main link between the transmitter 1 and the receiver 2, and the second radio frequency carrier signal and the second optical carrier signal are transmitted along the reflection link between the reflection mechanism 3 and the receiver 2.

[0212] When the first radio frequency carrier signal is transmitted along the radio frequency channel on the main link, it is affected not only by the channel response coefficient but also by noise contamination on the radio frequency channel. This results in the radio frequency carrier signal received by the signal receiving component 23 being different from the radio frequency carrier signal transmitted by the transmitter 1. In other words, the third radio frequency carrier signal refers to the radio frequency carrier signal after the channel response coefficient and noise contamination on the main link affect the first radio frequency carrier signal. Similarly, when the first optical carrier signal is transmitted along the optical channel on the main link, it is affected not only by the channel response coefficient but also by noise contamination on the optical channel. This results in the optical carrier signal received by the signal receiving component 23 being different from the optical carrier signal transmitted by the transmitter 1. In other words, the third optical carrier signal refers to the optical carrier signal after the channel response coefficient and noise contamination on the main link affect the first optical carrier signal.

[0213] When the second radio frequency carrier signal is transmitted along the radio frequency channel on the reflection link, it is affected not only by the channel response coefficient but also by noise contamination on the radio frequency channel. This results in the radio frequency carrier signal received by the signal receiving component 23 being different from the radio frequency carrier signal transmitted by the transmitter 1. In other words, the fourth radio frequency carrier signal refers to the radio frequency carrier signal after the channel response coefficient and noise contamination on the radio frequency channel of the reflection link affect the second radio frequency carrier signal. Similarly, when the second optical carrier signal is transmitted along the optical channel on the reflection link, it is affected not only by the channel response coefficient but also by noise contamination on the optical channel. This results in the optical carrier signal received by the signal receiving component 23 being different from the optical carrier signal transmitted by the transmitter 1. In other words, the fourth optical carrier signal refers to the optical carrier signal after the channel response coefficient and noise contamination on the optical channel of the reflection link affect the second optical carrier signal.

[0214] This disclosure provides a communication method applied to the transmitter 1 described in the above embodiments. As shown in FIG14, the method includes steps S110-S130.

[0215] Step S110: Obtain the first communication data and divide the first communication data to obtain the first data stream and the second data stream.

[0216] Step S120: Modulate the first data stream and the second data stream respectively to obtain the first radio frequency carrier signal and the first optical carrier signal.

[0217] Step S130: Transmit the first radio frequency carrier signal and the first optical carrier signal.

[0218] In this embodiment of the disclosure, the first communication data can be transmitted along both the radio frequency channel and the optical channel in a dual-channel manner to reduce the spectrum utilization on the radio frequency channel, thereby reducing or even avoiding the impact of the limited spectrum resources on the radio frequency channel on the communication effect.

[0219] The above step S110 can be implemented by the first control unit 11 of the transmitter 1. Specifically, referring to the above embodiments, the first communication data can be acquired by the first data acquisition module 111 included in the first control unit 11, and the acquired first communication data can be divided into a first data stream and a second data stream by the first data allocation module 112. The method by which the first data acquisition module 111 acquires the first communication data and the method by which the first data allocation module 112 divides the first communication data can both refer to the above embodiments, and this disclosure does not limit them.

[0220] For example, in step S110 above, the first data stream and the second data stream obtained after dividing the first communication data are both bit data streams. At this time, the first data stream and the second data stream can be converted from bit data streams into symbol data sequences according to the preset first symbol rate RS and first symbol width Ts.

[0221] The above step S120 can be implemented by the signal modulation component 12 included in the transmitter 1. Specifically, the first data stream can be modulated by the first modulation module 121 (first radio frequency modulation module 1211) to obtain a first radio frequency modulation signal, and then the first radio frequency modulation signal can be up-converted by the first radio frequency carrier module 122 to obtain a first radio frequency carrier signal; and the second data stream can be modulated by the first modulation module 121 (first optical modulation module 1212) to obtain a first optical modulation signal, and then the first optical modulation signal can be up-converted by the first optical carrier module 123 to obtain a first optical carrier signal.

[0222] In this method, after modulating the second data stream to obtain the first optical modulation signal, DC bias processing can be directly performed by the DC bias module 124, and then the first optical carrier module 123 can perform up-conversion processing on the DC biased first optical modulation signal to obtain a first optical carrier signal containing only the first optical modulation signal. Alternatively, the corresponding differential signal can be determined first based on the first optical modulation signal, and then DC bias processing can be performed on the first optical modulation signal and the differential signal by the DC bias module 124. Finally, the first optical carrier module 123 can perform up-conversion processing on both the DC biased first optical modulation signal and the differential signal to obtain a first optical carrier signal containing both the first optical modulation signal and the differential signal. In this way, for the first optical carrier signal containing both the first optical modulation signal and the differential signal, it is easier to ensure the accuracy of the second data stream transmission.

[0223] Taking the modulation of the first data stream in step S120 as an example, the first data stream is s E(n), n∈[0,+∞], select an impulse function g with a unit amplitude. P (t), at this point, the first data stream is modulated based on the pulse function to obtain the first radio frequency modulation signal x. E1 (t)(low frequency signal), and The first radio frequency modulation signal is then up-converted to obtain the first radio frequency carrier signal X. E1 (High-frequency signal), i.e., the first radio frequency modulation signal x E1 (t) is a high-frequency signal. The first radio frequency modulation signal can be a single-carrier signal, i.e. It can also be a multi-carrier signal, that is N refers to the number of carriers, and is greater than or equal to 2.

[0224] Taking the modulation of the second data stream in step S120 as an example, the second data stream is s O (n), n∈[0,+∞], select an impulse function g with a unit amplitude. P (t), at this point, the second data stream is first modulated based on the pulse function to obtain the first optical modulation signal x. O1 (t)(low frequency signal), and The first optical modulation signal is then processed by the DC bias module 124 to obtain a first optical carrier signal, i.e., a DC bias signal X, which includes only the first optical modulation signal after up-conversion. O1 High-frequency signals, and X O1 =x O1 (t)+d, or first determine the differential signal -x corresponding to the first optical modulation signal. O1 (t), and then the optical modulation signal and the differential signal are processed by a DC bias circuit to obtain a first optical carrier signal, which includes the first optical modulation signal and the differential signal, after up-conversion processing, i.e., the DC bias signal X. O1 High-frequency signals, and In addition, the first optical modulation signal can be a single-carrier signal, i.e. It can also be a multi-carrier signal, that is N refers to the number of carriers, and is greater than or equal to 2.

[0225] Where n refers to the sequence number of the first data stream and the second data stream, and d refers to the DC bias voltage for DC bias processing. When selecting the DC bias voltage d, it can satisfy... This ensures that the first optical carrier signal is a non-negative signal. Of course, for the selected DC bias voltage d, d-|x| can be satisfied most of the time. O1 (t)|≥0, meaning that d-|x exists at some times. O1 In the case where (t)|<0, negative signals at certain times can be truncated, i.e., the signal value is set to 0 or an acceptable non-negative value at the time corresponding to the negative signal. Specifically, after the first optical carrier signal is modulated, a threshold probability (i.e., the maximum probability that the first optical carrier signal is a negative signal) can be set according to actual needs, and then a suitable DC bias voltage d can be determined based on the threshold probability.

[0226] The above step S130 can be implemented by the signal transmitting component 13 included in the transmitter 1. Specifically, the first radio frequency carrier signal can be converted into electromagnetic waves and radiated outward by the first radio frequency antenna 1312 included in the radio frequency transmitting component 131 to realize the transmission of the first radio frequency carrier signal; and the first optical carrier signal can be converted into a light beam by the light-emitting device 1321 of the optical transmitting component 132 to realize the transmission of the first optical carrier signal.

[0227] The specific methods by which the first radio frequency carrier signal and the first optical carrier signal are transmitted through the radio frequency transmitting component 131 and the optical transmitting component 132, respectively, can be referred to in related technologies, and this disclosure does not limit them.

[0228] This disclosure provides a communication method applied to the receiver 2 described in the above embodiments. As shown in FIG15, the method includes steps S210-S230.

[0229] Step S210: Receive the third radio frequency carrier signal obtained after the first radio frequency carrier signal is transmitted, and the third optical carrier signal obtained after the first optical carrier signal is transmitted.

[0230] Step S220: Demodulate the third radio frequency carrier signal and the third optical carrier signal respectively to obtain the first data stream and the second data stream.

[0231] Step S230: Combine the first data stream and the second data stream to obtain the first communication data.

[0232] In this embodiment of the disclosure, the first communication data can be received along both the radio frequency channel and the optical channel in a dual-channel manner, thereby reducing the spectrum utilization on the radio frequency channel and thus reducing or even avoiding the impact of the limited spectrum resources on the radio frequency channel on the communication effect.

[0233] The above step S210 can be implemented by the signal receiving component 23 included in the receiver 2. Specifically, the electromagnetic wave corresponding to the first radio frequency carrier signal can be received by the second radio frequency antenna 2312 included in the radio frequency receiving component 231 to obtain the transmitted third radio frequency carrier signal; and the light beam corresponding to the first optical carrier signal can be received by the photodetector 2321 included in the optical receiving component 232 to obtain the transmitted third optical carrier signal.

[0234] The specific methods for the radio frequency receiving component 231 and the optical receiving component 232 to receive the first radio frequency carrier signal and the first optical carrier signal respectively to obtain the third radio frequency carrier signal and the third optical carrier signal can be referred to in related technologies, and this disclosure does not limit them.

[0235] For example, in the case where the radio frequency receiving component 231 receives a first radio frequency carrier signal, the first radio frequency carrier signal is X. E1 When the first radio frequency carrier signal is transmitted from transmitter 1 to receiver 2, due to the influence of the channel response coefficient and noise pollution of the radio frequency channel, the third radio frequency carrier signal received by radio frequency receiving component 231 is X. E3 (High-frequency signal), and X E3 =h ED ×X E1 +w ED h ED This refers to the channel response coefficient of the radio frequency channel, while wED refers to the noise signal of the radio frequency channel. In the case where the optical receiving component 232 receives the first optical carrier signal, the first optical carrier signal is the DC bias signal X. O1 High-frequency signals, and When the first optical carrier signal is transmitted from transmitter 1 to receiver 2, due to the influence of the channel response coefficient and noise pollution of the optical channel, the third optical carrier signal received by optical receiving component 232 is X. O3 (High-frequency signal), and X O3 =h OD ×X O1 +w OD h OD This refers to the channel response coefficient of the optical channel, w OD This refers to the noise signal in the optical channel.

[0236] The above step S220 can be implemented by the signal demodulation component 22 included in the receiver 2. Specifically, the third radio frequency carrier signal can be down-converted by the second radio frequency carrier module 222 to obtain the third radio frequency modulated signal, and then the third radio frequency modulated signal can be demodulated by the demodulation module 221 (radio frequency demodulation module 2211) to obtain the first data stream; and the third optical carrier signal can be down-converted by the second optical carrier module 223 to obtain the third optical modulated signal, and then the third optical signal can be demodulated by the demodulation module 221 (optical demodulation module 2212) to obtain the second data stream.

[0237] Taking the demodulation of the third radio frequency carrier signal in step S220 as an example, the third radio frequency carrier signal is X. E3 =h ED ×X E1 +w ED The third radio frequency modulated signal obtained after down-converting the third radio frequency carrier signal through the second radio frequency carrier module 222 is x. E3 (Low-frequency signal), and x E3 =h ED ×x E1 (t)+w ED Then, the third radio frequency modulation signal is demodulated by the radio frequency demodulation module 2211 to obtain the first data stream, and the specific demodulation process can be referred to relevant technologies.

[0238] Taking the demodulation of the third optical carrier signal in step S220 as an example, the third optical carrier signal is X. O3 =h OD ×X O1 +w OD The third optical modulation signal obtained after down-converting the third optical carrier signal through the second optical carrier module 223 is x. O3 (Low-frequency signal), and The second data stream is then obtained by demodulating the third optical modulation signal through the optical demodulation module 2212.

[0239] When the optical demodulation module 2212 modulates the third optical modulation signal, since the third optical modulation signal can be acquired based on incoherent light acquisition, it is necessary to preprocess the third optical modulation signal first, and then demodulate it based on the preprocessed third optical modulation signal to obtain the second data stream.

[0240] The demodulation process for the third optical modulation signal includes: determining the corresponding DC bias estimate based on the third optical modulation signal; acquiring the DC bias voltage and determining the ratio between the DC bias estimate and the DC bias voltage as the response coefficient estimate; and determining the second data stream based on the third optical modulation signal and the response coefficient estimate.

[0241] Specifically, first based on the formula Determine the corresponding DC bias estimate. Then, based on the obtained DC bias voltage d, Determined as the response coefficient estimate Then based on the formula Determine the estimated value of the third optical modulation signal. Finally, the estimated value based on the third optical modulation signal And the mapping of impulse functions (i.e., the mapping relationship of impulse functions used by the second data stream when performing baseband modulation to obtain the first optical modulation signal), and the maximum likelihood criterion for determining the second data stream s O (n).

[0242] The above step S230 can be implemented by the third control unit 21 included in the receiver 2. Specifically, the first data stream and the second data stream can be combined to obtain the first communication data by the data synthesis module 212 included in the third control unit 21. The synthesis method of the first data stream and the second data stream can refer to the division method of the first communication data described above, and will not be repeated in this embodiment.

[0243] This disclosure provides a communication method applied to the receiver 2 described in the above embodiments. As shown in FIG16, the method includes steps S310-S330.

[0244] Step S310: Receive the first radio frequency carrier signal, the third radio frequency carrier signal and the third optical carrier signal obtained after the first optical carrier signal is transmitted through the main link, and the fourth radio frequency carrier signal and the fourth optical carrier signal obtained after the second radio frequency carrier signal and the second optical carrier signal are transmitted through the reflection link.

[0245] Step S320: Demodulate the third radio frequency carrier signal and the fourth radio frequency carrier signal to obtain the first data stream and the third data stream, and demodulate the third optical carrier signal and the fourth optical carrier signal to obtain the second data stream and the fourth data stream.

[0246] Step S330: Combine the first data stream and the second data stream to obtain the first communication data, and combine the third data stream and the fourth data stream to obtain the second communication data.

[0247] In this embodiment of the disclosure, dual-channel reception of the first communication data and the second communication data along the radio frequency channel and optical channel of the main link, as well as the radio frequency channel and optical channel of the reflection link, can be realized to reduce the spectrum utilization on the radio frequency channel, thereby reducing or even avoiding the impact of the limited spectrum resources on the radio frequency channel on the communication effect.

[0248] The above step S310 can be implemented by the signal receiving component 23 included in the receiver 2. Specifically, the electromagnetic waves corresponding to the first radio frequency carrier signal and the second radio frequency carrier signal can be received by the second radio frequency antenna 2312 included in the radio frequency receiving component 231 to obtain the transmitted third radio frequency carrier signal and the fourth radio frequency carrier signal; and the light beams corresponding to the first optical carrier signal and the second optical carrier signal can be received by the photodetector 2321 included in the optical receiving component 232 to obtain the transmitted third optical carrier signal and the fourth optical carrier signal.

[0249] The specific methods for the radio frequency receiving component 231 to receive the first radio frequency carrier signal and the second radio frequency carrier signal to obtain the third radio frequency carrier signal and the fourth radio frequency carrier signal, and for the optical receiving component 232 to receive the first optical carrier signal and the second optical carrier signal to obtain the third optical carrier signal and the fourth optical carrier signal, can be referred to in related technologies, and are not limited in this disclosure.

[0250] It should be noted that for the cases where the radio frequency receiving component 231 receives the first radio frequency carrier signal and the optical receiving component 232 receives the first optical carrier signal, please refer to the above step S210 for details, and this embodiment will not be repeated here.

[0251] Regarding the case where the radio frequency receiving component 231 receives the second radio frequency carrier signal and the optical receiving component 232 receives the second optical carrier signal, in conjunction with the above description, the second radio frequency carrier signal is the radio frequency carrier signal reflected by the reflection mechanism 3 after receiving the first radio frequency carrier signal, and the second optical carrier signal is the optical carrier signal reflected by the reflection mechanism 3 after receiving the first optical carrier signal.

[0252] Specifically, the reflection mechanism 3 includes a second control unit 31, a second radio frequency modulation module 321, a second optical modulation module 322, a radio frequency reflection component 331, and an optical reflection component 332.

[0253] In the process of receiving the second communication data and dividing it into a third data stream and a fourth data stream, the second control unit 31 can perform a conversion from bit data stream to symbol data order to obtain the third data stream and the fourth data stream in symbol data order format. The symbol parameter during the conversion can be the second symbol rate R. c Second symbol width T cThe converted third data stream is b E (l), l∈[0,+∞], the fourth data stream is b O (l),l∈[0,+∞).

[0254] The second radio frequency modulation module 321 is used for the third data stream b E (l) Modulation is performed, at which point a pulse function g with an amplitude value of unit amplitude can be selected. P (t), and then based on the impulse function, the third data stream b E (l) Modulation is performed to obtain the second radio frequency modulation signal x E2 (t)(low frequency signal), and The second radio frequency modulation signal can be a single-carrier signal, i.e. It can also be a multi-carrier signal, that is N refers to the number of carrier waves, and is greater than or equal to 2. The second optical modulation module 322 is used to modulate the fourth data stream, at which time a pulse function g with an amplitude value of unit amplitude can be selected. P (t), and then modulate the fourth data stream based on the pulse function to obtain the second optical modulation signal x. O2 (t)(low frequency signal), and The second optical modulation signal can be a single-carrier signal, i.e. It can also be a multi-carrier signal, that is N refers to the number of carriers, and is greater than or equal to 2.

[0255] The radio frequency reflection component 331 is used to load the second radio frequency modulation signal onto the first radio frequency carrier signal. However, when the radio frequency reflection component 331 receives the first radio frequency carrier signal, it is affected by the channel response coefficient and noise pollution of the radio frequency channel on the reflection link, resulting in the carrier signal arriving at the radio frequency reflection component 331 being h. ES ×X E1 The second radio frequency carrier signal obtained by further loading the second radio frequency modulation signal onto the first radio frequency carrier signal is X. E2 (High-frequency signal), and X E2 =H1×h ES ×x E2 (t)×X E1 h ESH1 refers to the channel response coefficient of the radio frequency channel on the reflection link from transmitter 1 to reflection mechanism 3, and H1 refers to the reflection coefficient of the radio frequency reflector 3312 on the first radio frequency carrier signal. The optical reflection component 332 is used to load the second optical modulation signal onto the first optical carrier signal. When the optical reflection component 332 receives the first optical carrier signal, it is affected by the channel response coefficient and noise pollution of the optical channel on the reflection link, so that the carrier signal reaching the optical reflection component 332 is h. OS ×X O1 The second optical carrier signal obtained by further loading the second optical modulation signal onto the first optical carrier signal is X. O2 (High-frequency signal), and X O2 =H2×h OS ×x O2 (t)×X O1 h OS H1 refers to the channel response coefficient of the optical channel on the reflection link from transmitter 1 to reflection mechanism 3, and H2 refers to the reflection coefficient of the radio frequency reflector 3312 to the first optical carrier signal.

[0256] Wherein, the radio frequency reflection component 331 described above includes a radio frequency reflection surface 3312, and the reflection coefficient H1 of the radio frequency reflection surface 3312 to the first radio frequency carrier signal can be {h E,ij}, where h E,ij It refers to the reflection coefficient of a reflecting unit in the i-th row and j-th column, and |h E,ij |≤1. When the RF reflector 3312 has one reflective element, the reflection coefficient H1 of the RF reflector 3312 is h. E , and |h E |≤1. In conjunction with the aforementioned optical reflection component 332, when the optical reflection component 332 includes an optically controlled reflection structure 3322, the reflectivity H2 of the optical reflection component 332 for the first optical carrier signal is equal to the reflectivity ρ of the optically controlled reflection structure 3322. c When the optical reflection component 332 includes an optically controlled reflection structure 3322 and an optical diffuse reflection surface 3323, the reflectivity H2 of the optical reflection component 332 to the first optical carrier signal is equal to the reflectivity ρ of the optically controlled reflection structure 3322. c The reflectivity ρ of the optical diffuse reflector 3323 nc The product of β and β. Further, when the RF reflective surface 3312 is a transparent structure and is stacked with the optically controlled reflection structure 3322 or the optical diffuse reflection surface 3323, the transmittance of the RF reflective surface 3312 is β, and the reflectance H2 of the optical reflection component 332 to the first optical carrier signal is β. 2 ×ρ c Or β 2 ×ρ nc ×ρc .

[0257] Continuing, in the case where the radio frequency receiving component 231 receives the second radio frequency carrier signal, the second radio frequency carrier signal is X. E2 When the second radio frequency carrier signal is transmitted from the reflection mechanism 3 to the receiver 2, due to the influence of the channel response coefficient and noise pollution of the radio frequency channel, the fourth radio frequency carrier signal received by the radio frequency receiving component 231 is X. E4 (High-frequency signal), and X E4 =H1×h ER ×h ES ×x E2 (t)×X E1 +w ER h ER This refers to the channel response coefficient of the radio frequency channel on the reflection link from the reflection mechanism 3 to the receiver 2, w ER This refers to noise contamination of the radio frequency channel on the reflection link from the reflector 3 to the receiver 2. In the case where the optical receiver 232 receives the second optical carrier signal, the second optical carrier signal is X. O2 When the second optical carrier signal is transmitted from transmitter 1 to receiver 2, due to the influence of the channel response coefficient and noise pollution of the optical channel, the fourth optical carrier signal received by optical receiving component 232 is X. O4 (High-frequency signal), and X O4 =H2×h OR ×h OS ×x O2 (t)×X O1 +w OR h OR This refers to the channel response coefficient of the optical channel on the reflection link from the reflector 3 to the receiver 2, w OR This refers to the noise signal of the optical channel on the reflection link from the reflection mechanism 3 to the receiver 2.

[0258] Among them, X E4 =H1×h EC ×x E2 (t)×X E1 +w ER h EC =h ER ×h ES X O4 =H2×h OC ×x O2 (t)×X O1 +w OR h OC =h OR ×h OS h ECh refers to the channel response coefficient of the radio frequency channel from transmitter 1 to receiver 2 on the reflection link. OC It refers to the channel response coefficient of the optical channel on the reflection link from transmitter 1 to receiver 2.

[0259] The above step S320 can be implemented by the signal demodulation component 22 included in the receiver 2. Specifically, the third radio frequency carrier signal and the fourth radio frequency carrier signal can be down-converted by the second radio frequency carrier module 222 to obtain the third radio frequency modulation signal and the fourth radio frequency modulation signal. Then, the third radio frequency modulation signal and the fourth radio frequency modulation signal can be demodulated by the demodulation module 221 (radio frequency demodulation module 2211) to obtain the first data stream and the third data stream. The third optical carrier signal and the fourth optical carrier signal can be down-converted by the second optical carrier module 223 to obtain the third optical modulation signal and the fourth modulation signal. Then, the third optical signal and the fourth optical modulation signal can be demodulated by the demodulation module 221 (optical demodulation module 2212) to obtain the second data stream and the fourth data stream.

[0260] Taking the demodulation of the third and fourth radio frequency carrier signals in step S320 as an example, the third radio frequency carrier signal is X. E3 =h ED ×X E1 +w ED The fourth radio frequency carrier signal is X E4 =H1×h EC ×x E2 (t)×X E1 +w ER After down-converting the third and fourth radio frequency carrier signals through the second radio frequency carrier module 222, the resulting third and fourth radio frequency modulated signals are x, respectively. E3 (low-frequency signal) and x E4 And x E3 =h ED ×x E1 (t)+w ED x E4 =H1×h ED ×x E2 (t)×x E1 (t)+w ER Then, the third and fourth radio frequency modulation signals are demodulated by the radio frequency demodulation module 2211 to obtain the first and third data streams, and the specific demodulation process can be referred to relevant technologies.

[0261] Taking the demodulation of the third and fourth optical carrier signals in step S320 as an example, the third optical carrier signal is X. O3 =h OD ×XO1 +w OD The fourth optical carrier signal is X O4 =H2×h OC ×x O2 (t)×X O1 +w OR The third and fourth optical modulation signals obtained by down-converting the third and fourth optical carrier signals through the second optical carrier module 223 are x and x, respectively. O3 and x O4 ,and The third and fourth optical modulation signals are then demodulated by the optical demodulation module 2212 to obtain the second and fourth data streams.

[0262] When the optical demodulation module 2212 modulates the third optical modulation signal and the fourth optical modulation signal, since the third optical modulation signal and the fourth optical modulation signal can be acquired based on incoherent light acquisition, it is necessary to preprocess the third optical modulation signal and the fourth optical modulation signal first, and then demodulate based on the preprocessed third optical modulation signal and the fourth optical modulation signal to obtain the second data stream and the fourth data stream.

[0263] The demodulation process for the third and fourth optical modulation signals includes: determining a first DC bias estimate for the main link and a second DC bias estimate for the reflection link based on the third and fourth optical modulation signals; acquiring a DC bias voltage and determining a first response coefficient estimate for the main link based on the ratio between the first DC bias estimate and the DC bias voltage, and determining a second response coefficient estimate for the reflection link based on the ratio between the second DC bias estimate and the DC bias voltage; and determining a second data stream and the fourth data stream based on the third and fourth optical modulation signals, the DC bias voltage, the first response coefficient estimate, and the second response coefficient estimate.

[0264] Specifically, first based on the formula Determine the corresponding first DC bias estimate. Based on formula Determine the corresponding second DC bias estimate. Then, based on the obtained DC bias voltage d, Determine the first response coefficient estimate for the main link. And based on the acquired DC bias voltage d, The second response coefficient estimate for the reflection link was determined. Then based on the formula and formula Determine the estimated value of the fourth optical modulation signal and based on formula and formula Determine the estimated value of the third optical modulation signal. Finally, the estimated value based on the third optical modulation signal The mapping of impulse functions (i.e., the mapping relationship of impulse functions used by the second data stream when modulating to obtain the first optical modulation signal), the maximum likelihood criterion, and the determination of the second data stream s. O (n), and the estimated value based on the fourth optical modulation signal. Estimated value of the fourth optical modulation signal The mapping of impulse functions (i.e., the mapping relationship of impulse functions used by the fourth data stream when modulating to obtain the third optical modulation signal), the maximum likelihood criterion, and the determination of the fourth data stream b. O (l).

[0265] The above step S330 can be implemented by the third control unit 21 included in the receiver 2. Specifically, the data synthesis module 212 included in the third control unit 21 can synthesize the first data stream and the second data stream to obtain the first communication data, and synthesize the third data stream and the fourth data stream to obtain the second communication data. The synthesis method of the first data stream and the second data stream, as well as the synthesis method of the third data stream and the fourth data stream, can refer to the division method of the first communication data and the second communication data described above, and will not be repeated in this embodiment.

[0266] In this embodiment of the disclosure, for the optoelectronic communication system 10 including a transmitter 1, a receiver 2, and a reflection mechanism 3, when the transmitter 1 transmits a carrier signal with incoherent light, in the first symbol width T S The second symbol width is 10 microseconds. c Simulation tests were conducted on the optoelectronic communication system 10 at a time limit of 40 microseconds. When the receiver 2 received the first communication data using the conventional method, the corresponding constellation diagram is shown in Figure 17. When the first communication data was transmitted using the method shown in Figure 14 and received using the method shown in Figure 16, the corresponding constellation diagram is shown in Figure 18. Comparing Figures 17 and 18, it can be seen that the transmission method shown in Figure 14 and the reception method shown in Figure 16 can ensure the accuracy of the first communication data transmission, thereby ensuring the reliability of communication between the transmitter 1, the reflector 3, and the receiver 2.

[0267] Furthermore, simulation tests were conducted with DC bias voltages of 0.3 volts, 0.7 volts, and 1.1 volts. When receiver 2 used conventional methods to demodulate the first and second communication data, the bit error rate curves B11 (DC bias voltage of 0.3 volts), B12 (DC bias voltage of 0.7 volts), and B13 (DC bias voltage of 1.1 volts) shown in Figure 19 could be determined. When receiver 2 used the method described in Figure 16 to demodulate the first and second communication data, the bit error rate curves B21 (DC bias voltage of 0.3 volts), B22 (DC bias voltage of 0.7 volts), and B23 (DC bias voltage of 1.1 volts) shown in Figure 19 could be determined. Based on the comparison of bit error rate curves B11 and B21, B12 and B22, and B13 and B23, it can be seen that the receiver 2 can effectively ensure the accuracy of receiving the first and second communication data by using the method shown in Figure 16, thereby ensuring the reliability of communication between the transmitter 1, the reflection mechanism 3 and the receiver 2.

[0268] It should be noted that although the steps of the communication method in this disclosure are described in a specific order in the accompanying drawings, this does not require or imply that these steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additional or alternative steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0269] This disclosure provides an electronic device, which may be a smart lighting device, a smart socket, a smart door lock, a smart curtain, etc. The electronic device includes the transmitter 1 described in the above embodiments and / or the receiver 2 described in the above embodiments.

[0270] In the aforementioned optoelectronic communication system 10, the transmitter 1 and receiver 2 can be integrated into one of two electronic devices, and the receiver 2 can be integrated into the other of the two electronic devices, thereby enabling communication between the two electronic devices based on the transmitter 1 and receiver 2. Alternatively, in order to enable mutual communication between the two electronic devices, both electronic devices can integrate a transmitter 1 and a receiver 2, so that mutual communication can be achieved between the transmitter 1 or receiver 2 on one electronic device and the receiver 2 or transmitter 1 on the other electronic device.

[0271] Thus, based on the transmitter 1 or receiver 2 included in the electronic device, and the externally cooperating reflective mechanism 3, photoelectric symbiotic communication between multiple electronic devices can be formed to ensure the communication effect between multiple electronic devices, thereby improving the automation and intelligence of the electronic devices, while reducing the energy consumption when multiple electronic devices communicate with each other, achieving the effect of energy saving and emission reduction.

[0272] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A transmitter, wherein, include: A first control unit is configured to receive first communication data and divide the first communication data into a first data stream and a second data stream. A signal modulation component is connected to the first control unit and is used to modulate the first data stream and the second data stream respectively to obtain a first radio frequency carrier signal and a first optical carrier signal; A signal transmitting component is connected to the signal modulation component and is used to transmit the first radio frequency carrier signal and the first optical carrier signal to the receiver so that the receiver can acquire the first communication data.

2. The transmitter as claimed in claim 1, wherein, The signal modulation component includes a first modulation module, a first radio frequency carrier module, and a first optical carrier module; the signal transmission component includes a radio frequency transmission component and an optical transmission component. The first modulation module is connected to the first control unit, and is also connected to the first radio frequency carrier module and the first optical carrier module. The first radio frequency carrier module is connected to the radio frequency transmitting component, and the first optical carrier module is connected to the optical transmitting component. The first modulation module is used to modulate the first data stream and the second data stream respectively to obtain the corresponding first radio frequency modulation signal and the first optical modulation signal. The first radio frequency carrier module and the first optical carrier module are used to perform up-conversion processing on the first radio frequency modulation signal and the first optical modulation signal respectively to obtain the first radio frequency carrier signal and the first optical carrier signal. The radio frequency transmitting component and the optical transmitting component are used to transmit the first radio frequency carrier signal and the first optical carrier signal respectively.

3. The transmitter as described in claim 2, wherein, The first modulation module includes a first radio frequency modulation module and a first optical modulation module; The first radio frequency modulation module and the first optical modulation module are both connected to the first control unit, and are also connected to the first radio frequency carrier module and the first optical carrier module, respectively. The first radio frequency modulation module is used to modulate the first data stream to obtain the first radio frequency modulation signal, and the first optical modulation module is used to modulate the second data stream to obtain the first optical modulation signal.

4. The transmitter as claimed in claim 2, wherein, The radio frequency transmitting component includes a first radio frequency antenna, and the optical transmitting component includes a light-emitting device and a light-emitting driving circuit. The first radio frequency antenna and the light-emitting driving circuit are integrated on the same circuit board, and the light-emitting driving circuit is connected to the light-emitting device.

5. The transmitter as claimed in claim 4, wherein, The optical emitting component also includes a plurality of first optical antennas, and the plurality of first optical antenna arrays are distributed on the light-emitting side of the light-emitting device.

6. The transmitter as claimed in claim 4 or 5, wherein, The light-emitting device is used to emit the first optical carrier signal in the form of incoherent light.

7. The transmitter as claimed in claim 2, wherein, The signal transmitting component further includes a mounting plate, the radio frequency transmitting component includes a first radio frequency antenna, and the optical transmitting component includes a first optical antenna; The mounting plate has mounting holes, the first radio frequency antenna is fixed on the mounting plate, and the first optical antenna is confined within the mounting holes.

8. The transmitter as claimed in claim 7, wherein, The first radio frequency antenna includes multiple antenna elements, which are evenly distributed circumferentially around the periphery of the first optical antenna.

9. A reflecting mechanism, wherein, include: The second control unit is used to receive the second communication data and divide the second communication data into a third data stream and a fourth data stream. The second modulation module is connected to the second control unit and is used to modulate the third data stream and the fourth data stream respectively to obtain a second radio frequency modulation signal and a second optical modulation signal. The reflective surface assembly includes a radio frequency (RF) reflective component and an optical reflective component. Both the RF reflective component and the optical reflective component are connected to the second modulation module. The RF reflective component is used to adjust the reflection coefficient using the second RF modulation signal, so that when the first RF carrier signal transmitted by the transmitter is incident on the RF reflective component, the second RF modulation signal is loaded onto the first RF carrier signal, and the second RF carrier signal obtained after loading is reflected to the receiver. The optical reflective component is used to adjust the reflection coefficient using the second optical modulation signal, so that when the first optical carrier signal transmitted by the transmitter is incident on the optical reflective component, the second optical modulation signal is loaded onto the first optical carrier signal, and the second optical carrier signal obtained after loading is reflected to the receiver, so that the receiver receives the second communication data.

10. The reflecting mechanism as claimed in claim 9, wherein, The optical reflection component includes an optical driving module and an optically controlled reflection structure; The optical driving module is connected to the second modulation module and to the optical controlled reflection structure. The optical driving module is used to adjust the reflection coefficient of the optical controlled reflection structure through the second optical modulation signal, so that when the first optical carrier signal emitted by the transmitter is incident on the optical controlled reflection structure, the second optical modulation signal is loaded onto the first optical carrier signal, and the second optical carrier signal obtained after loading is reflected to the receiver.

11. The reflecting mechanism as claimed in claim 10, wherein, The radio frequency reflection component includes a radio frequency reflection surface; The optically controlled reflection structure is a light reflector, and the optically controlled reflection structure is integrated on the radio frequency reflective surface.

12. The reflecting mechanism as claimed in claim 10, wherein, The radio frequency reflection component includes a radio frequency reflection surface, which is a light-transmitting structure; The optically controlled reflection structure is an optically controlled reflection surface. The radio frequency reflection surface is stacked with the optically controlled reflection surface, and the radio frequency reflection surface is located in the optical path between the transmitter and the optically controlled reflection surface.

13. The reflecting mechanism as claimed in claim 10, wherein, The optical reflection component further includes an optical diffuse reflection surface, which is located in the optical path between the optical controlled reflection structure and the receiver.

14. The reflecting mechanism as claimed in claim 13, wherein, The radio frequency reflection component includes a radio frequency reflection surface, which is a light-transmitting structure; The radio frequency reflective surface is stacked with the optical diffuse reflective surface, and the radio frequency reflective surface is located in the optical path between the optical controlled reflection structure and the optical diffuse reflective surface.

15. The reflecting mechanism as claimed in claim 9, wherein, The second modulation module includes a second radio frequency modulation module and a second optical modulation module; Both the second radio frequency modulation module and the second optical modulation module are connected to the second control unit, and are also connected to the radio frequency reflection component and the optical reflection component, respectively.

16. A receiver, wherein, include: A signal receiving component is used to receive a first radio frequency carrier signal and a first optical carrier signal transmitted by a transmitter, so as to obtain a third radio frequency carrier signal and a third optical carrier signal after transmission, respectively; A signal demodulation component is connected to the signal receiving component and is used to demodulate the third radio frequency carrier signal and the third optical carrier signal respectively to obtain a first data stream and a second data stream. The third control unit is connected to the signal demodulation component and is used to synthesize the first data stream and the second data stream to obtain the first communication data.

17. The receiver of claim 16, wherein, The signal demodulation component includes a demodulation module, a second radio frequency carrier module, and a second optical carrier module; the signal receiving component includes a radio frequency receiving component and an optical receiving component. The demodulation module is connected to the third control unit block, and is also connected to the second radio frequency carrier module and the second optical carrier module. The second radio frequency carrier module is connected to the radio frequency receiving module, and the second optical carrier module is connected to the optical receiving module. The radio frequency receiving component and the optical receiving component are used to receive the first radio frequency carrier signal and the first optical carrier signal respectively to obtain the third radio frequency carrier signal and the third optical carrier signal respectively. The second radio frequency carrier module and the second optical carrier module are used to perform down-conversion processing on the third radio frequency carrier signal and the third optical carrier signal respectively to obtain the third radio frequency modulation signal and the third optical modulation signal. The demodulation module is used to demodulate the third radio frequency modulation signal and the third optical modulation signal respectively to obtain the first data stream and the second data stream.

18. The receiver of claim 17, wherein, The demodulation module includes a radio frequency demodulation module and an optical demodulation module; The radio frequency demodulation module and the optical demodulation module are both connected to the third control unit, and are also connected to the second radio frequency carrier module and the second optical carrier module, respectively. The radio frequency demodulation module is used to demodulate the third radio frequency modulation signal to obtain the first data stream, and the optical demodulation module is used to demodulate the third optical modulation signal to obtain the second data stream.

19. The receiver as claimed in claim 16, wherein, The signal receiving component includes a photodetector for collecting incoherent light to receive a first optical carrier signal emitted by the transmitter.

20. A receiver, wherein, include: The signal receiving component is used to receive the first radio frequency carrier signal and the first optical carrier signal transmitted by the transmitter, so as to obtain the third radio frequency carrier signal and the third optical carrier signal after transmission, respectively; and to receive the second radio frequency carrier signal and the second optical carrier signal reflected by the reflecting mechanism, so as to obtain the fourth radio frequency carrier signal and the fourth optical carrier signal after transmission, respectively. A signal demodulation component is connected to the signal receiving component and is used to demodulate the third radio frequency carrier signal and the fourth radio frequency carrier signal to obtain a first data stream and a third data stream, and to demodulate the third optical carrier signal and the fourth optical carrier signal to obtain a second data stream and a fourth data stream. The third control unit is connected to the signal demodulation component and is used to combine the first data stream and the second data stream to obtain first communication data, and to combine the third data stream and the fourth data stream to obtain second communication data.

21. An optoelectronic communication system, wherein, It includes the transmitter as described in any one of claims 1-8 and the receiver as described in any one of claims 16-19.

22. An optoelectronic communication system, wherein, It includes the transmitter as described in any one of claims 1-8, the reflector as described in any one of claims 9-15, and the receiver as described in claim 20.

23. A communication method, wherein, The method is applied to the transmitter according to any one of claims 1-8, and the method includes: Acquire first communication data and divide the first communication data to obtain a first data stream and a second data stream; The first data stream and the second data stream are modulated respectively to obtain a first radio frequency carrier signal and a first optical carrier signal; Transmit the first radio frequency carrier signal and the first optical carrier signal.

24. The method of claim 23, wherein, Modulating the second data stream to obtain a first optical carrier signal includes: The second data stream is modulated to obtain a first optical modulation signal; Determine the differential signal corresponding to the first optical modulation signal; The first optical modulation signal and the differential signal are respectively subjected to DC bias processing; The first optical modulation signal and the differential signal after DC bias processing are up-converted to obtain the first optical carrier signal.

25. A communication method, wherein, The method is applied to the receiver according to any one of claims 16-19, and the method includes: Receive the third radio frequency carrier signal obtained after the first radio frequency carrier signal is transmitted, and the third optical carrier signal obtained after the first optical carrier signal is transmitted; The third radio frequency carrier signal and the third optical carrier signal are demodulated respectively to obtain the first data stream and the second data stream; The first data stream and the second data stream are combined to obtain the first communication data.

26. The method of claim 25, wherein, Demodulating the third optical carrier signal to obtain a second data stream includes: The third optical carrier signal is down-converted to obtain the third optical modulation signal; The corresponding DC bias estimate is determined based on the third optical modulation signal; Obtain the DC bias voltage, and determine the ratio between the estimated DC bias voltage and the estimated DC bias voltage as the estimated response coefficient. The second data stream is determined based on the third optical modulation signal and the estimated response coefficient.

27. A communication method, wherein, The method is applied to the receiver of claim 20, and the method includes: The system receives a first radio frequency carrier signal and a first optical carrier signal, which are then transmitted through the main link to obtain a third radio frequency carrier signal and a third optical carrier signal, as well as a second radio frequency carrier signal and a second optical carrier signal, which are then transmitted through the reflection link to obtain a fourth radio frequency carrier signal and a fourth optical carrier signal. The third radio frequency carrier signal and the fourth radio frequency carrier signal are demodulated to obtain the first data stream and the third data stream, and the third optical carrier signal and the fourth optical carrier signal are demodulated to obtain the second data stream and the fourth data stream; The first data stream and the second data stream are combined to obtain the first communication data, and the third data stream and the fourth data stream are combined to obtain the second communication data.

28. The method of claim 27, wherein, Demodulating the third optical carrier signal and the fourth optical carrier signal to obtain the second data stream and the fourth data stream includes: The third optical carrier signal and the fourth optical carrier signal are down-converted to obtain the third optical modulation signal and the fourth optical modulation signal, respectively. Based on the third optical modulation signal and the fourth optical modulation signal, the first DC bias estimate of the main link and the second DC bias estimate of the reflection link are determined respectively. Obtain the DC bias voltage, and determine the ratio between the first DC bias estimate and the DC bias voltage as the first response coefficient estimate of the main link, and determine the ratio between the second DC bias estimate and the DC bias voltage as the second response coefficient estimate of the reflection link; The second data stream and the fourth data stream are determined based on the third optical modulation signal and the fourth optical modulation signal, as well as the DC bias voltage, the first response coefficient estimate, and the second response coefficient estimate.

29. An electronic device, wherein, It includes the transmitter as described in any one of claims 1-8, and / or the receiver as described in any one of claims 16-20.

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