Signal Transmission System, Signal Transmission Method, Device, and Storage Medium

Abstract

Embodiments of the present application provide a signal transmission system, a signal transmission method, a device, and a storage medium, which relate to the field of communication technologies. The signal transmission system includes an access node, at least one signal-sensing relay node, and at least one first target node; the signal-sensing relay node collects the energy of the energy signal in the transmission signal to achieve wireless power supply, and sends a second information signal to the first target node according to its attributes, receives the sensing reflection signal of the first target node to generate first sensing data, or receives the communication feedback signal of the first target node and sends it to the access node. The signals transmitted by the signal-sensing relay node can be used for both communication and sensing simultaneously to achieve ubiquitous sensing; the simultaneous transmission mode of information and energy can achieve wireless power supply, avoid the need to frequently replace batteries, reduce maintenance costs, reduce environmental pollution caused by discarded batteries, and greatly reduce the implementation difficulty of ubiquitous sensing applications.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a signal transmission system, a signal transmission method, a device, and a storage medium. Background Art

[0002] With the development of smartphones, wearable devices, wireless communication, and smart devices with lower and lower costs and faster ubiquitous sensing, ubiquitous sensing has been widely applied in fields such as smart terminals, smart homes, smart health care, new human-computer interaction, and autonomous driving. For example, low-power radar sensors can be deployed on a large scale to achieve ubiquitous sensing.

[0003] However, in related technologies, the low-power radar sensors deployed on a large scale contain tiny batteries with poor battery life and require regular battery replacement and recycling, resulting in high maintenance costs. Moreover, a large number of discarded tiny batteries will cause environmental pollution. Summary of the Invention

[0004] The main purpose of the embodiments of this application is to propose a signal transmission system, a signal transmission method, a device, and a storage medium, which can reduce the maintenance cost of radar sensors and reduce environmental pollution caused by battery waste.

[0005] To achieve the above objective, a first aspect of the embodiments of this application proposes a signal transmission system, including:

[0006] An access node, which is configured to generate a transmission signal, and the transmission signal includes an energy signal and a first information signal;

[0007] At least one signal-sensing relay node, which is communicatively connected to the access node. The signal-sensing relay node is configured to receive the transmission signal sent by the access node, collect the energy in the energy signal to achieve wireless power supply, and send a second information signal according to the attributes of a first target node. The second information signal is generated from the first information signal and includes one of a second communication signal, a second sensing signal, or a communication-sensing combined signal;

[0008] At least one first target node, which is configured to receive the second information signal from the signal-sensing relay node and obtain communication data according to the second communication signal and generate a communication feedback signal, or form a sensing reflection signal according to the second sensing signal, or form the communication feedback signal and the sensing reflection signal according to the communication-sensing combined signal;

[0009] The signal-sensing relay node is further configured to receive the communication feedback signal generated by the first target node according to the second communication signal, and send the communication feedback signal to the access node; or, receive the sensed reflection signal reflected by the first target node, and generate first sensed data according to the sensed reflection signal; or, receive the communication feedback signal generated by the first target node according to the communication-sensing combined signal and the sensed reflection signal reflected by the first target node, send the communication feedback signal to the access node, and generate first sensed data according to the sensed reflection signal.

[0010] In one embodiment, the access node includes:

[0011] A radio baseband unit, which is configured to generate the transmission signal;

[0012] A radio frequency front-end unit, which is connected to the radio baseband unit;

[0013] An access antenna unit, which is connected to the radio frequency front-end unit;

[0014] The radio frequency front-end unit is configured to receive the transmission signal and modulate the transmission signal into a radio frequency transmission signal and send it to the access antenna unit;

[0015] The access antenna unit is configured to send the radio frequency transmission signal to the signal-sensing relay node;

[0016] The access antenna unit is further configured to receive one or more of the communication feedback signal, the sensed reflection signal, and the first sensed data.

[0017] In one embodiment, the first information signal includes a first communication signal and / or a first sensing signal; the system further includes:

[0018] At least one second target node, which is configured to receive the first communication signal to generate a direct communication feedback signal, and / or receive the first sensing signal to generate a direct sensed reflection signal;

[0019] The access node is further configured to receive the direct communication feedback signal and / or the direct sensed reflection signal from the second target node.

[0020] In one embodiment, the access node further includes: an access control unit;

[0021] The access control unit is connected to the radio baseband unit, the radio frequency front-end unit, and the access antenna unit;

[0022] The access control unit is used to generate a first global control signal, and the first global control signal is used to control the operating states of the radio baseband unit, the radio frequency front-end unit, and the access antenna unit.

[0023] In one embodiment, the access control unit is further configured to receive the sensed reflection signal transmitted by the access antenna unit, and perform detection and analysis based on the sensed reflection signal to obtain second sensing data.

[0024] In one embodiment, the first information signal includes a first communication signal and a first sensing signal, and the transmission signal is an integrated communication and energy transmission signal;

[0025] When the access node is used to generate a transmission signal, the following operations are performed:

[0026] Generate signal fusion allocation parameter information, where the signal fusion allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value. The first allocation parameter value corresponds to the first communication signal, the second allocation parameter value corresponds to the first sensing signal, and the third allocation parameter value corresponds to the energy signal;

[0027] Based on the signal fusion allocation parameter information, generate the integrated communication and energy transmission signal according to the first communication signal, the first sensing signal, and the energy signal.

[0028] In one embodiment, the generating the integrated communication and energy transmission signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes:

[0029] Allocate a preset carrier according to the signal fusion allocation parameter information to obtain sub-carrier information, where the sub-carrier information includes: communication signal sub-carriers, sensing signal sub-carriers, and energy signal sub-carriers;

[0030] Based on the sub-carrier information, generate the integrated communication and energy transmission signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

[0031] In one embodiment, the generating the integrated communication and energy transmission signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes:

[0032] Allocate a preset transmission time according to the signal fusion allocation parameter information to obtain transmission time information, where the transmission time information includes: communication signal transmission time, sensing signal transmission time, and energy signal transmission time;

[0033] Based on the transmission time information, generate the communication and energy co - transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

[0034] In one embodiment, the generating the communication and energy co - transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes:

[0035] Allocate the transmission frequency band according to the signal fusion allocation parameter information to obtain transmission frequency band information, where the transmission frequency band information includes: communication signal transmission frequency band, sensing signal transmission frequency band, energy signal transmission frequency band;

[0036] Based on the transmission frequency band information, generate the communication and energy co - transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within different frequency bands.

[0037] In one embodiment, the communication and sensing relay node includes:

[0038] A sensing transceiver unit, which is configured to receive the transmission signal sent by the access node and perform signal extraction on the transmission signal to obtain the energy signal and the digital control signal, and the first information signal is the digital control signal;

[0039] An energy management unit, which is connected to the sensing transceiver unit and is configured to receive the energy signal and collect the energy in the energy signal to achieve wireless power supply;

[0040] A digital control demodulation unit, which is configured to demodulate the digital control signal to obtain one of a second communication signal, a second sensing signal, or a communication and sensing combined signal;

[0041] A baseband transceiver unit, which is configured to obtain a control instruction according to the second sensing signal or the communication and sensing combined signal;

[0042] A radio frequency transceiver unit, which is configured to send the second sensing signal, and / or, the second communication signal, and / or, the communication and sensing combined signal to the first target node according to the control instruction.

[0043] In one embodiment, the attributes of the first target node include: a first attribute, a second attribute, and a third attribute; when the radio frequency transceiver unit is configured to send the second sensing signal, and / or, the second communication signal, and / or, the communication and sensing combined signal to the first target node according to the control instruction, the following steps are performed:

[0044] If the attribute of the first target node is the first attribute, the radio frequency transceiver unit sends the second sensing signal to the first target node based on the control instruction to receive the sensing reflection signal generated by the first target node according to the second sensing signal;

[0045] If the attribute of the first target node is the second attribute, the radio frequency transceiver unit sends the second communication signal to the first target node based on the control instruction, so that the first target node obtains communication data according to the second communication signal and generates a communication feedback signal;

[0046] If the attribute of the first target node is the third attribute, the radio frequency transceiver unit sends the communication and sensing combined signal to the first target node based on the control instruction, so that the first target node generates a communication feedback signal and a sensing reflection signal according to the communication signal.

[0047] In one embodiment, the communication and sensing relay node further includes: a sensing operation unit, and the sensing operation unit is configured to receive the sensing reflection signal and perform detection and analysis according to the sensing reflection signal to obtain first sensing data.

[0048] In one embodiment, the radio frequency transceiver unit is further configured to receive the communication feedback signal and send the communication feedback signal to the access node through the sensing transceiver unit.

[0049] In one embodiment, the communication and sensing relay node further includes: a sensing control unit;

[0050] The sensing control unit is connected to the sensing transceiver unit, the energy management unit, the digital control demodulation unit, the baseband transceiver unit, the radio frequency transceiver unit, and the sensing operation unit;

[0051] The sensing control unit is configured to generate a second global control signal, and the second global control signal is used to control the working states of the sensing transceiver unit, the energy management unit, the digital control demodulation unit, the baseband transceiver unit, the radio frequency transceiver unit, and the sensing operation unit.

[0052] To achieve the above object, a second aspect of the embodiments of the present application proposes a signal transmission method, including:

[0053] Receiving a transmission signal sent by an access node, where the transmission signal includes an energy signal and a first information signal;

[0054] Collecting the energy in the energy signal to achieve wireless power supply;

[0055] A second information signal is obtained according to the first information signal, and the second information signal includes one of a second communication signal, a second sensing signal, or a communication-sensing combined signal;

[0056] Based on the attributes of the first target node, the second information signal is sent to the first target node, so that the first target node obtains communication data according to the second communication signal and generates a communication feedback signal, or forms a sensing reflection signal according to the second sensing signal, or forms the communication feedback signal and the sensing reflection signal according to the communication-sensing combined signal;

[0057] The communication feedback signal generated by the first target node according to the second information signal is received and sent to the access node; or, the sensing reflection signal reflected by the first target node is received and the first sensing data is generated according to the sensing reflection signal; or, the communication feedback signal generated by the first target node according to the communication-sensing combined signal and the sensing reflection signal reflected by the first target node are received, the communication feedback signal is sent to the access node, and the first sensing data is generated according to the sensing reflection signal.

[0058] In an embodiment, the transmission signal is an energy-communication co-transmission fusion signal, and the energy-communication co-transmission fusion signal is generated by the access node based on signal fusion allocation parameter information according to a first communication signal, a first sensing signal, and an energy signal; the signal fusion allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value, the first allocation parameter value corresponds to the first communication signal, the second allocation parameter value corresponds to the first sensing signal, and the third allocation parameter value corresponds to the energy signal.

[0059] In an embodiment, the attributes of the first target node include: a first attribute, a second attribute, and a third attribute;

[0060] The sending the second information signal to the first target node based on the attributes of the first target node includes:

[0061] If the attribute of the first target node is the first attribute, the radio frequency transceiver unit sends the second sensing signal to the first target node based on the control instruction to receive the sensing reflection signal generated by the first target node according to the second sensing signal;

[0062] If the attribute of the first target node is the second attribute, the radio frequency transceiver unit sends the second communication signal to the first target node based on the control instruction, so that the first target node obtains communication data according to the second communication signal and generates a communication feedback signal;

[0063] If the attribute of the first target node is the third attribute, the radio frequency transceiver unit sends the communication and sensing combined signal to the first target node based on the control instruction, so that the first target node generates a communication feedback signal and a sensing reflection signal according to the communication signal.

[0064] To achieve the above object, a third aspect of the embodiments of the present application proposes a signal transmission method, including:

[0065] Generating a transmission signal, where the transmission signal includes an energy signal and a first information signal;

[0066] Sending the transmission signal to a communication and sensing relay node, so that the communication and sensing relay node can collect the energy in the energy signal to achieve wireless power supply, and send a second information signal according to the attribute of the first target node, where the second information signal is generated from the first information signal; the second information signal includes one of a second communication signal, a second sensing signal, or a communication and sensing combined signal;

[0067] Receiving one or more of a communication feedback signal generated by the first target node according to the second communication signal, a sensing reflection signal generated by the first target node according to the second sensing signal, and first sensing data generated by the communication and sensing relay node according to the sensing reflection signal.

[0068] In an embodiment, the first information signal includes a first communication signal and / or a first sensing signal, and the method further includes:

[0069] Receiving a direct communication feedback signal generated by a second target node according to the first communication signal, and / or a direct sensing reflection signal generated according to the first sensing signal.

[0070] In an embodiment, the first information signal includes a first communication signal and a first sensing signal, and the transmission signal is a communication, energy, and sensing co - transmission fusion signal;

[0071] The generating the transmission signal includes:

[0072] Generating signal fusion and allocation parameter information, where the signal fusion and allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value, the first allocation parameter value corresponds to the first communication signal, the second allocation parameter value corresponds to the first sensing signal, and the third allocation parameter value corresponds to the energy signal;

[0073] Based on the signal fusion and allocation parameter information, generating the communication, energy, and sensing co - transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal.

[0074] In one embodiment, generating the communication and energy co - transmission fusion signal based on the signal fusion allocation parameter information according to the first communication signal, the first sensing signal, and the energy signal includes:

[0075] Allocating a preset carrier according to the signal fusion allocation parameter information to obtain sub - carrier information, where the sub - carrier information includes: communication signal sub - carriers, sensing signal sub - carriers, and energy signal sub - carriers;

[0076] Based on the sub - carrier information, generating the communication and energy co - transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

[0077] In one embodiment, generating the communication and energy co - transmission fusion signal based on the signal fusion allocation parameter information according to the first communication signal, the first sensing signal, and the energy signal includes:

[0078] Allocating a preset transmission time according to the signal fusion allocation parameter information to obtain transmission time information, where the transmission time information includes: communication signal transmission time, sensing signal transmission time, and energy signal transmission time;

[0079] Based on the transmission time information, generating the communication and energy co - transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

[0080] In one embodiment, generating the communication and energy co - transmission fusion signal based on the signal fusion allocation parameter information according to the first communication signal, the first sensing signal, and the energy signal includes:

[0081] Allocating a transmission frequency band according to the signal fusion allocation parameter information to obtain transmission frequency band information, where the transmission frequency band information includes: communication signal transmission frequency band, sensing signal transmission frequency band, and energy signal transmission frequency band;

[0082] Based on the transmission frequency band information, generating the communication and energy co - transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within different frequency bands.

[0083] To achieve the above object, a fourth aspect of the embodiments of the present application proposes an electronic device, where the electronic device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the method described in the second aspect or the third aspect above is implemented.

[0084] To achieve the above object, a fifth aspect of the embodiments of the present application provides a storage medium, which is a computer-readable storage medium. The storage medium stores a computer program, and when the computer program is executed by a processor, the method described in the second aspect or the third aspect above is implemented.

[0085] The signal transmission system, signal transmission method, device, and storage medium provided by the embodiments of the present application, wherein the signal transmission system includes: an access node that generates a transmission signal, at least one signal-sensing relay node, and at least one first target node; wherein the transmission signal includes an energy signal and a first information signal. The signal-sensing relay node acquires the energy in the energy signal to implement wireless functions, obtains energy from the transmission signal, and sends a second information signal to the first target node according to its attributes, receives a sensed reflection signal or a communication feedback signal generated by the first target node, and sends the communication feedback signal to the access node, or generates first sensing data according to the sensed reflection signal. Since the transmission signal includes an energy signal and a first information signal in the embodiments of the present application, the signal-sensing relay node can be used for both communication and sensing at the same time. On the one hand, the communication and sensing functions are completed using the first information signal to achieve ubiquitous sensing; on the other hand, energy supply can be realized, avoiding the need to frequently replace batteries, reducing maintenance costs, and reducing environmental pollution caused by discarded batteries, enabling the signal-sensing relay node to be applied to more sensing scenarios and greatly reducing the implementation difficulty of ubiquitous sensing applications. Description of the Drawings

[0086] Figure 1 is a schematic diagram of a signal transmission system provided by an embodiment of the present application.

[0087] Figure 2 is a schematic diagram of an access node of a signal transmission system provided by another embodiment of the present application.

[0088] Figure 3 is a schematic diagram of the execution process of an access node of a signal transmission system provided by another embodiment of the present application.

[0089] Figure 4 is Figure 3 a flowchart of step S320 in

[0090] Figure 5 is Figure 3 another flowchart of step S320 in

[0091] Figure 6 is Figure 3 another flowchart of step S320 in

[0092] Figure 7 is a schematic diagram of a signal-sensing relay node of a signal transmission system provided by another embodiment of the present application.

[0093] Figure 8 It is a schematic diagram of the working principle of a signal transmission system provided by another embodiment of the present application.

[0094] Figure 9 It is a flowchart of a signal transmission method provided by an embodiment of the present application.

[0095] Figure 10 It is Figure 9 a flowchart of step S940 in

[0096] Figure 11 It is a flowchart of a signal transmission method provided by another embodiment of the present application.

[0097] Figure 12 It is Figure 11 a flowchart of step S1110 in

[0098] Figure 13 It is Figure 12 a flowchart of step S1112 in

[0099] Figure 14 It is Figure 12 another flowchart of step S1112 in

[0100] Figure 15 It is Figure 12 another flowchart of step S1112 in Detailed implementation manners

[0101] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0102] It should be noted that although functional module division is performed in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order from the module division in the device or the flowchart.

[0103] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application, and are not intended to limit the present application.

[0104] With the continuous reduction in the cost of smartphones, wearable devices, wireless communication, and smart devices, and the rapid development of ubiquitous sensing, ubiquitous sensing has been widely applied in fields such as smart terminals, smart homes, smart health care, new human-computer interaction, and autonomous driving.

[0105] The applicant has found that in the related art, in order to achieve large-scale deployment of low-power radar sensors for ubiquitous sensing, the low-power radar sensors contain tiny batteries with poor battery life and need to be replaced and recycled regularly. If the deployment scale of the radar is large or the deployment scenario is somewhat dangerous, battery maintenance will result in high maintenance costs, and a large number of discarded tiny batteries will cause environmental pollution.

[0106] Based on this, the embodiments of the present application provide a signal transmission system, a signal transmission method, a device, and a storage medium. The signal transmission system includes an access node that generates a transmission signal, at least one signal-sensing relay node that receives the transmission signal, and at least one first target node. The transmission signal includes an energy signal and an information signal. The signal-sensing relay node acquires the energy in the energy signal to implement wireless functions, obtains energy from the transmission signal, and transmits the information signal to the first target node, and receives the sensing reflection signal generated by the information signal of the first target node. The access node receives a communication feedback signal, a sensing reflection signal, or first sensing data. Since the transmission signal in the embodiments of the present application includes an energy signal and an information signal, the signal-sensing relay node can be used for both communication and sensing at the same time. On the one hand, the sensing function is completed using the information signal to achieve ubiquitous sensing. On the other hand, energy supply can be realized, avoiding the need to frequently replace batteries, reducing maintenance costs, and reducing environmental pollution caused by discarded batteries, enabling the signal-sensing relay node to be applied to more sensing scenarios and greatly reducing the implementation difficulty of ubiquitous sensing applications.

[0107] The embodiments of the present application provide a signal transmission system, a signal transmission method, a device, and a storage medium, which will be specifically described through the following embodiments.

[0108] First, the signal transmission system in the embodiments of the present application will be described below.

[0109] Figure 1 It is a schematic diagram of the signal transmission system 100 in the embodiments of the present application. As shown in the figure, it includes:

[0110] An access node 200, where the access node 200 is used to generate a transmission signal. For example, the access node 200 can be a communication base station. The transmission signal includes an energy signal and a first information signal, and the first information signal includes a first communication signal and / or a first sensing signal. It can be understood that the first information signal can also be a fusion signal of the first communication signal and the first sensing signal, and the present embodiment does not make specific limitations on this.

[0111] At least one signal-sensing relay node 300 (two are taken as examples in the figure for illustration). The signal-sensing relay node 300 can be a sensor such as a low-power radar, and the present embodiment does not make specific limitations on this. Among them, the signal-sensing relay node 300 is communicatively connected to the access node 200 and is used to receive the transmission signal sent by the access node 200.

[0112] At least one first target node 400 (illustrated by 3 in the figure), and the first target nodes 400 are respectively communicatively connected to the access node 200 and the communication-sensing relay node 300.

[0113] In this embodiment, the communication-sensing relay node 300 is further configured to collect the energy in the energy signal to achieve wireless power supply, that is, use the energy signal to supply power to the battery of the communication-sensing relay node 300. In addition, the communication-sensing relay node 300 also obtains a corresponding second information signal according to the received first information signal, and the second information signal includes one of a second communication signal, a second sensing signal, or a communication-sensing combined signal.

[0114] The communication-sensing relay node 300 is further configured to send the second information signal to the first target node 400 according to the attribute of the first target node 400, so that the first target node 400 obtains communication data according to the second communication signal and generates a communication feedback signal, and / or forms a sensing reflection signal according to the second sensing signal, and / or forms a communication feedback signal and a sensing reflection signal according to the communication-sensing combined signal.

[0115] The communication-sensing relay node 300 is further configured to receive the communication feedback signal generated by the first target node 400 according to the second information signal and send the communication feedback signal to the access node 200; and / or receive the sensing reflection signal reflected by the first target node and generate first sensing data according to the sensing reflection signal.

[0116] The access node 200 is further configured to receive one or more of the communication feedback signal generated by the first target node 400 according to the second communication signal, the sensing reflection signal generated by the first target node 400 according to the second sensing signal, and the first sensing data generated by the communication-sensing relay node 300 according to the sensing reflection signal.

[0117] It can be understood that, unless otherwise specified in this article, the first communication signal, the second communication signal, and the communication feedback signal all include the communication data generated during the communication process.

[0118] From the architecture of the above signal transmission system, it can be seen that the transmission signal sent by the access node 200 includes an energy signal and a first information signal, enabling the communication-sensing relay node 300 to, on the one hand, complete the sensing function using the first information signal to achieve ubiquitous sensing; on the other hand, the communication-sensing relay node 300 can use the energy signal to achieve power supply and charging, avoiding the need to frequently replace the battery, reducing the maintenance cost, reducing the environmental pollution caused by discarded batteries, and without the need to frequently replace the battery, enabling the communication-sensing relay node to be applied to more sensing scenarios.

[0119] The access node will be described in detail below.

[0120] In one embodiment, referring to Figure 2 , the access node 200 includes: a radio baseband unit 210, a radio frequency front-end unit 220, an access antenna unit 230, and an access control unit 240.

[0121] Among them, the radio baseband unit 210 is used to generate a baseband transmission signal, where the transmission signal includes an energy signal and an information signal.

[0122] The radio frequency front-end unit 220, connected to the radio baseband unit 210, is used to receive the transmission signal and modulate the transmission signal from the baseband onto a high-frequency carrier to obtain a radio frequency transmission signal and send it to the access antenna unit 230.

[0123] The access antenna unit 230 is used to send the high-frequency radio frequency transmission signal to the signal-sensing relay node 300 to implement the transmission of the energy signal and the information signal, so that the signal-sensing relay node 300 can use the first information signal to complete the sensing function and can also use the energy signal for power supply.

[0124] And the access antenna unit 230 is further used to receive one or more of a communication feedback signal generated by the first target node 400 according to the second communication signal, a sensing reflection signal generated by the first target node 400 according to the second sensing signal, and first sensing data generated by the signal-sensing relay node 300 according to the sensing reflection signal.

[0125] The access control unit 240, connected to the radio baseband unit 210, the radio frequency front-end unit 220, and the access antenna unit 230, is used to generate a first global control signal, and the first global control signal is used to control the working states of the radio baseband unit 210, the radio frequency front-end unit 220, and the access antenna unit 230.

[0126] In addition, the access control unit 240 also receives a sensing reflection signal or a communication feedback signal sent through the access antenna unit 230, and performs detection and analysis according to the sensing reflection signal to obtain second sensing data; or communicates according to the communication feedback signal returned by the signal-sensing relay node 300, or directly receives the first sensing data obtained by the signal-sensing relay node 300 through detection and analysis according to the sensing reflection signal. It can be understood that the first sensing data and the second sensing data can be the same data.

[0127] In one embodiment, referring to Figure 1, the system further includes at least one second target node 500. Such target nodes are located within the radiation range of the access node, can directly receive the first information signal transmitted by the access node, and generate a direct communication feedback signal according to the first communication signal, or generate a direct sensing reflection signal according to the first sensing signal, or generate a direct communication feedback signal and a direct sensing reflection signal according to the first communication signal and the first sensing signal simultaneously. The working principle and attributes of the second target node are the same as those of the first target node, and the only difference lies in whether it is within the signal radiation range of the access node. Therefore, the working principle of the second target node will not be elaborated here.

[0128] It can be understood that after the communication feedback signal or the sensing reflection signal is received by the access antenna unit 230, it needs to pass through the RF front-end unit 220 and the wireless baseband unit 210, become a baseband signal, and then be returned by the wireless baseband unit 210 to the access control unit 240 for relevant analysis.

[0129] In one embodiment, the transmission signal has two signal forms. The first is the independent signal form, and the second is the fusion signal form.

[0130] When the transmission signal adopts the independent signal form, the transmission signal includes separately and independently: an energy signal, a first communication signal, and a first sensing signal, and the three signals are connected in series.

[0131] When the transmission signal adopts the fusion signal form, the transmission signal is a signal and energy co-transmission fusion signal.

[0132] Refer to Figure 3 , when the access node is used to generate a transmission signal, the following operations are performed:

[0133] Step S310, generate signal fusion allocation parameter information.

[0134] In one embodiment, the signal fusion allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value. Among them, the first allocation parameter value is used to characterize the first communication signal, the second allocation parameter value is used to characterize the first sensing signal, and the third allocation parameter value is used to characterize the energy signal.

[0135] Step S320, based on the signal fusion allocation parameter information, generate a signal and energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal.

[0136] In one embodiment, the signal fusion allocation parameter information can be fused based on the carrier, or based on time, or based on frequency band, or other fusion methods. The above three fusion methods will be described in detail below.

[0137] The first fusion method: fusion based on the carrier, that is, wavelength division multiplexing.

[0138] In one embodiment, referring to Figure 4 , which is a specific implementation flowchart of step S320 shown in one embodiment. In the embodiments of the present application, the step S320 of generating a signal-energy co-transmission fusion signal based on signal fusion allocation parameter information according to a first communication signal, a first sensing signal, and an energy signal includes:

[0139] Step S410: Allocate a preset carrier according to the signal fusion allocation parameter information to obtain sub-carrier information.

[0140] In one embodiment, based on channel quality related parameters, sub-carrier, power, and spectrum pre-allocation can be performed on the data streams corresponding to the communication signal, sensing signal, and energy signal in the baseband signal in the same frequency band to generate sub-carrier information. Here, the sub-carrier information corresponds to the allocation parameters of different signals. For example, the sub-carrier information includes: communication signal sub-carriers, sensing signal sub-carriers, energy signal sub-carriers. Different signals are allocated to different sub-carriers to obtain corresponding baseband signals, namely parallel communication signal baseband signals, sensing signal baseband signals, and energy signal baseband signals.

[0141] Step S420: Based on the sub-carrier information, generate a signal-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

[0142] In one embodiment, the above parallel communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal are subjected to serial-parallel conversion to generate parallel data streams, and then the parallel data streams are classified. Modulation parameter allocation, such as power spectrum allocation, spectrum allocation, etc., is performed on the baseband signals in the parallel data streams according to the allocation parameters of different signals. Finally, the communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal in the parallel data streams are modulated onto the pre-allocated sub-carriers to obtain a serial data stream.

[0143] As can be seen from the above, in the embodiments of the present application, fusion is performed based on the carrier, and sub-carriers are allocated in the same frequency band, so that a signal-energy co-transmission fusion signal is generated according to the first communication signal, the first sensing signal, and the energy signal, realizing the transmission of information and energy in the same signal.

[0144] The second fusion method: fusion based on time, i.e., time division multiplexing.

[0145] Referring to Figure 5 , which is another specific implementation flowchart of step S320 shown in one embodiment. In the embodiments of the present application, the step S320 of generating a signal-energy co-transmission fusion signal based on signal fusion allocation parameter information according to a first communication signal, a first sensing signal, and an energy signal includes:

[0146] Step S510: Allocate the preset transmission time according to the signal fusion allocation parameter information to obtain the transmission time information.

[0147] In one embodiment, based on the transmission time-related parameters, the data streams corresponding to the communication signal, the sensing signal, and the energy signal in the baseband signal can be time-allocated at different transmission times to generate the transmission time information, where the transmission time information corresponds to the allocation parameters of different signals. For example, the transmission time information includes: the communication signal transmission time, the sensing signal transmission time, and the energy signal transmission time. Different signals are allocated to different transmission times to obtain the corresponding baseband signals, which are respectively the parallel communication signal baseband signal, the sensing signal baseband signal, and the energy signal baseband signal.

[0148] Step S520: Based on the transmission time information, generate a signal energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within the preset frequency band.

[0149] In one embodiment, the above-mentioned parallel communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal are subjected to serial-parallel conversion to generate parallel data streams, and then the parallel data streams are classified. The baseband signals in the parallel data streams are modulated accordingly according to the transmission times of different signals. Finally, the communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal in the parallel data streams are obtained as serial data streams according to the pre-allocated transmission times.

[0150] In one embodiment, for example, the transmission time is T, and T is divided into T1\T2\T3 in sequence according to the actual transmission requirements. The communication signal baseband signal is transmitted in the T1 time period, the sensing signal baseband signal is transmitted in the T2 time period, and the energy signal baseband signal is transmitted in the T3 time period.

[0151] As can be seen from the above, in the embodiment of the present application, fusion is performed based on the transmission time, and the transmission time is allocated within the preset frequency band, so that a signal energy co-transmission fusion signal is generated according to the first communication signal, the first sensing signal, and the energy signal, realizing the transmission of information and energy in the same signal.

[0152] The third fusion method: Fusion based on frequency band, that is, spatial division multiplexing.

[0153] Refer to Figure 6 , which is another specific implementation flowchart of step S320 shown in an embodiment. In the embodiment of the present application, step S320 of generating a signal energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes:

[0154] Step S610: Allocate the transmission frequency band according to the signal fusion allocation parameter information to obtain the transmission frequency band information.

[0155] In one embodiment, relevant parameters of the transmission frequency band can be used to allocate the data streams corresponding to the communication signal, the sensing signal, and the energy signal in the baseband signal to different transmission frequency bands, and frequency band allocation is performed to generate the transmission frequency band information. Here, the transmission frequency band information corresponds to the allocation parameters of different signals. For example, the transmission frequency band information includes: the communication signal transmission frequency band, the sensing signal transmission frequency band, and the energy signal transmission frequency band. Different signals are allocated to different frequency bands to obtain the corresponding baseband signals, which are respectively the parallel communication signal baseband signal, the sensing signal baseband signal, and the energy signal baseband signal.

[0156] Step S620: Based on the transmission frequency band information, generate a signal-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal in different frequency bands.

[0157] In one embodiment, the above parallel communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal are subjected to serial-parallel conversion to generate parallel data streams, and then the parallel data streams are classified. The baseband signals in the parallel data streams are modulated accordingly according to the transmission time of different signals. Finally, the communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal in the parallel data streams are obtained as a serial data stream according to the pre-allocated transmission time.

[0158] As can be seen from the above, in the embodiment of the present application, fusion is performed based on the transmission frequency band. The frequency band is allocated, and a signal-energy co-transmission fusion signal is generated according to the first communication signal, the first sensing signal, and the energy signal in different frequency bands, so as to realize the transmission of information and energy in the same signal.

[0159] Through the above three methods, the signal-energy co-transmission fusion signal sent by the access node includes the relevant information of the first communication signal, the first sensing signal, and the energy signal. At the same time, it realizes providing electrical energy for the signal-sensing relay node, as well as performing interactive control and data extraction with the signal-sensing relay node. The signal-sensing relay node then implements integrated communication and sensing transmission. In this embodiment, the access node and the signal-sensing relay node can perform wireless interaction to complete the control of the signal-sensing relay node and the reading of sensing data, avoid the signal-sensing relay node becoming an information island, and improve the effectiveness of communication and sensing.

[0160] The signal-sensing relay node will be described in detail below.

[0161] Refer to Figure 7, the sensing relay node 300 includes: a sensing transceiver unit 310, an energy management unit 320, a numerical control demodulation unit 330, a baseband transceiver unit 340, a radio frequency transceiver unit 350, a sensing operation unit 360, and a sensing control unit 370.

[0162] Among them, the sensing transceiver unit 310 includes: a sensing antenna unit 311 and a simultaneous transmission signal receiving unit 312. The sensing antenna unit 311 is communicatively connected to the simultaneous transmission signal receiving unit 312, and the sensing antenna unit 311 sends the received transmission signal sent by the access node to the simultaneous transmission signal receiving unit 312.

[0163] In one embodiment, the simultaneous transmission signal receiving unit 312 extracts signals from the transmission signal to obtain the energy signal and the numerical control signal contained therein. Here, the numerical control signal is the first information signal in the transmission signal.

[0164] The energy management unit 320 is connected to the sensing transceiver unit 310, and is configured to receive the energy signal obtained by signal extraction, and collect the energy in the energy signal to achieve wireless power supply.

[0165] In one embodiment, the energy management unit 320 includes a battery. The energy management unit 320 realizes energy management. Specifically: it charges the battery using the received energy signal. For example, in some application scenarios where it is inconvenient to replace the battery or charge, this embodiment uses wireless energy transmission to power the sensing relay node, which can solve the working and battery life problems of the sensing relay node. For example, for aerospace applications, it can supplement power for satellites (a type of sensing relay node) with insufficient solar energy absorption, assist the satellite to improve its battery life, and complete sensing tasks; or for space exploration applications, it can power the sensing relay node equipment on the lunar surface to assist it in completing sensing tasks.

[0166] The numerical control demodulation unit 330 is connected to the sensing transceiver unit 310, and is configured to demodulate the numerical control signal obtained by signal extraction to obtain one of a second communication signal, a second sensing signal, or a communication and sensing combined signal. It can be understood that the second communication signal is related to the first communication signal, the second sensing signal is related to the first sensing signal, and the communication and sensing combined signal is a fusion signal of the second communication signal and the second sensing signal.

[0167] In one embodiment, if the transmission signal is an independent signal of an energy signal, a first sensing signal, and a first communication signal, the numerical control demodulation unit 330 demodulates the numerical control signal obtained by signal extraction to obtain the corresponding second sensing signal and second communication signal.

[0168] In one embodiment, if the transmitted signal is an integrated signal of communication and sensing energy, the digital control demodulation unit 330 demodulates the digital control signal obtained by signal extraction, and according to its fusion mode, separates an independent second sensing signal, a second communication signal, and a communication-sensing combined signal in which the second sensing signal and the second communication signal are connected in series from the integrated signal of communication and sensing energy.

[0169] In one embodiment, for example, if the integrated signal of communication and sensing energy is fused based on time, the signal within the transmission time is divided according to different time switching ratios. For example, if the transmission time is T, T is sequentially divided into T1 / T2 / T3 according to the actual transmission requirements. The T1 time period accounts for 20%, and the first communication signal is transmitted. The T2 time period accounts for 30%, and the first sensing signal is transmitted. The T3 time period accounts for 50%, and the energy signal is transmitted. Then, within the entire time period, the first 20% of the signal is used as the first communication signal, the next 30% of the signal is used as the first sensing signal, and the last 50% of the signal is used as the energy signal. It can also be said that the first 50% is used for data extraction of communication and sensing, and the last 50% is used for energy collection.

[0170] The baseband transceiver unit 340, which is connected to the digital control demodulation unit 330, is used to obtain a control instruction from the second sensing signal or the communication-sensing combined signal.

[0171] In one embodiment, the baseband transceiver unit 340 also obtains a relevant received baseband signal according to the high-frequency second sensing signal, second communication signal, or communication-sensing combined signal. It can be understood that the second sensing signal, second communication signal, or communication-sensing combined signal all has a corresponding baseband signal.

[0172] The radio frequency transceiver unit 350, where the radio frequency transceiver unit 350 includes a second radio frequency front-end unit 351 and a radio frequency antenna 352. One end of the second radio frequency front-end unit 351 is connected to the baseband transceiver unit 340, and the other end of the second radio frequency front-end unit 351 is connected to the radio frequency antenna 352. In one embodiment, the second radio frequency front-end unit 351 uses the radio frequency antenna 352 to send the second sensing signal, second communication signal, or communication-sensing combined signal to the first target node 400 according to the control instruction. It can be understood that the second radio frequency front-end unit 351 performs radio frequency processing on the corresponding baseband signals of the above-mentioned second sensing signal, second communication signal, or communication-sensing combined signal and then sends them.

[0173] The sensing operation unit 360, which is connected to the second radio frequency front-end unit 351, receives the sensing reflection signal of the first target node 400, and performs detection and analysis according to the sensing reflection signal to obtain sensing data.

[0174] In one embodiment, the sensing control unit 370 is connected to the sensing transceiver unit 310, the energy management unit 320, the digital control demodulation unit 330, the baseband transceiver unit 340, the radio frequency transceiver unit 350, and the sensing operation unit 360 (the connection lines are not shown in the figure). The sensing control unit 370 is used to generate a second global control signal, and the second global control signal is used to sense the operating states of the sensing transceiver unit 310, the energy management unit 320, the digital control demodulation unit 330, the baseband transceiver unit 340, the radio frequency transceiver unit 350, and the sensing operation unit 360.

[0175] In one embodiment, the first target node 400 includes three types, namely the detection target type, the communication node type, and the fusion type.

[0176] Among them, the detection target type is the detected object that only needs to be sensed, and it is an object that needs to be sensed. The sensing in the embodiments of the present application can be divided into sensing functions such as detection sensing, ranging sensing, and imaging sensing. For example, a sensor is used to perform detection sensing on the contour of the detected object, a sensor is used to perform ranging sensing on the distance information such as the distance, speed, and azimuth of the detected object, and a sensor is used to perform imaging sensing on the image of the detected object, etc. The detected object here can be: people, vehicles, equipment, buildings, etc.

[0177] The communication node type is a wireless device that only needs to communicate, and the wireless device is a device that needs to perform wireless data interaction, such as a wireless communication device or a facility device with a wireless function.

[0178] The fusion type is a wireless detection object that needs to perform communication and sensing simultaneously, and the infinite detection object is a person or device that needs to be sensed and also needs to perform wireless data interaction. For example, the device is integrated on the detected object, such as an autonomous driving vehicle, a mobile robot, an aircraft, a pedestrian making a mobile call, etc.

[0179] In one embodiment, different attributes of the first target node are obtained according to the above first target node types, namely the first attribute, the second attribute, and the third attribute. Among them, the first attribute corresponds to the detection target type, the second attribute corresponds to the communication node type, and the third attribute corresponds to the fusion type.

[0180] In one embodiment, referring to Figure 1 , the signal sensing relay node transmits different signals to the first target node according to the different attributes of the first target node. Specifically, the radio frequency front-end unit uses the radio frequency antenna to send the sensing signal, the communication signal, or the communication and sensing combined signal to the first target node according to the control instruction.

[0181] In one embodiment, if the attribute of the first target node is the first attribute, that is, the first target node is of the detection target type and is a detected object that only needs to be sensed. Therefore, the RF transceiver unit only sends the second sensing signal to the first target node based on the control instruction to receive the sensing reflection signal generated by the first target node according to the second sensing signal.

[0182] If the attribute of the first target node is the second attribute, that is, the first target node is of the communication node type and is a wireless device that only needs to communicate. Therefore, the RF transceiver unit sends only the communication signal to the first target node based on the control instruction to obtain the communication data obtained by the first target node according to the second communication signal and generate the communication feedback signal.

[0183] If the attribute of the first target node is the third attribute, that is, the first target node is of the fusion type and is a wireless detection object that needs to communicate and sense simultaneously. Therefore, the RF transceiver unit sends the communication and sensing combined signal to the first target node based on the control instruction. The communication and sensing combined signal contains both the second communication signal and the second sensing signal. Therefore, the communication feedback signal and the sensing reflection signal generated by the first target node according to the communication and sensing combined signal can be obtained.

[0184] As can be seen from the above, different signals are sent according to the different attributes of the first target node, and the first target node can be flexibly and dynamically adjusted according to actual needs, expanding the application scenarios of the first target node.

[0185] In one embodiment, the RF transceiver unit 350 also performs communication operations such as baseband signal extraction and RF conversion on the received communication feedback signal of the first target node 400, generates a communication output signal suitable for high-frequency transmission according to the communication feedback signal, and sends the communication output signal to the access antenna unit 230 of the access node 200 by using the sensing antenna unit 311 to implement communication. The same applies to the returned sensing reflection signal.

[0186] It can be understood that the RF transceiver unit 350 also performs corresponding communication operations such as baseband signal extraction and RF conversion on the sensing reflection signal. In the embodiments of the present application, both the sensing reflection signal and the communication feedback signal returned by the communication and sensing relay node 300 are signals after communication operations.

[0187] In one embodiment, referring to Figure 7 , the sensing operation unit 360 of the communication and sensing relay node 300 is connected to the second RF front-end unit 351, receives the sensing reflection signal of the first target node 400, and performs detection and analysis according to the sensing reflection signal to obtain the first sensing data.

[0188] In this embodiment, the second sensing signal can form a sensing reflection signal after being reflected by the first target node 400. The first sensing data can be obtained through the sensing reflection signal. The first sensing data can be various different sensing information such as the contour, orientation, distance, speed, appearance, etc. of the first target node. Specifically, which sensing information to obtain can be set by the access node in the control instruction according to the actual requirements. This is only for illustration in the embodiments of this application and is not limited.

[0189] Refer to Figure 8 , which is a schematic diagram of the working principle of the signal transmission system according to the embodiments of this application, including the following steps:

[0190] Step S810, the access node sends a transmission signal;

[0191] Step S820, the signal-sensing relay node receives the transmission signal and realizes energy supply and communication sensing;

[0192] Step S830, the signal-sensing relay node sends a second information signal to the first target node according to the attribute of the first target node to perform different operations;

[0193] If the attribute of the first target node is the first attribute, in step S840, the signal-sensing relay node sends a sensing signal to the first target node for sensing to obtain a sensing reflection signal generated by the first target node according to the second sensing signal;

[0194] If the attribute of the first target node is the second attribute, in step S850, the signal-sensing relay node sends a communication signal to the first target node to obtain a communication feedback signal generated by the first target node according to the second communication signal;

[0195] If the attribute of the first target node is the third attribute, in step S860, the signal-sensing relay node sends a communication-sensing combined signal to the first target node to obtain a communication feedback signal and a sensing reflection signal generated by the first target node according to the communication-sensing combined signal.

[0196] Step S870, the communication feedback signal and the sensing reflection signal of the first target node are transmitted back to the access node or the signal-sensing relay node.

[0197] It can be understood that if the first target node is relatively close to the access node and can be directly covered by the action range of the access node, the first information signal can also be directly used for the sensing of the first target node, that is, the access node directly obtains the communication feedback signal and the sensing reflection signal of the first target node to realize communication and sensing.

[0198] In one embodiment, in step S870, the sensed reflection signal can be sent back to the sensing relay node, and the sensing relay node obtains the first sensing data according to the sensed reflection signal. Due to the transmission power problem of the first target node, the sensing relay node can also send the obtained first sensing data back to the access node, and the access node performs further operations according to the sensing data. In one embodiment, the first target node directly sends the sensed reflection signal back to the access node, so that the access node processes the sensed reflection signal to obtain the second sensing data. In another embodiment, the sensed reflection signal can also go through processes such as reflection, diffraction, and penetration of obstacles, and be received by other sensing relay nodes, and the first sensing data is sent back to the corresponding access node. In another embodiment, due to the transmission power problem of the first target node, in step S870, the communication feedback signal can also be sent back to the access node through the sensing relay node to achieve communication. The specific transmission path is not limited in this embodiment.

[0199] The signal transmission system will be described in detail below.

[0200] In one embodiment, assume that the transmission time period is T m During this period, the access antenna unit of the access node includes N p ≥1 antennas, and these antennas are used to send the energy and information co-transmission fusion signal to the sensing relay node. The energy and information co-transmission fusion signal can be obtained by combining one or more of wavelength division multiplexing, time division multiplexing, and space division multiplexing.

[0201] At time t, the transmission signal in the baseband is represented as S m (t), which is a K-dimensional vector carrying the energy signal and the first information signal for the sensing relay node, and also includes the control instruction for the sensing relay node. In one embodiment, the control instruction here can be the detection control signal of the access node for the sensing relay node. When the access node transmits the transmission signal, the control instruction and the sensing signal are sent simultaneously.

[0202] After being processed by the radio frequency front-end unit, the transmission signal in the baseband is modulated from the baseband onto a high-frequency carrier to obtain the radio frequency transmission signal. The radio frequency transmission signal is an N p -dimensional first passband analog signal X m (t), which is expressed as:

[0203] X m (t) = V m S m (t)

[0204] Wherein, V m represents an N p ×K order transmit beamforming matrix.

[0205] The first passband analog signal X m(t) after N p ×N e -th order channel C m reaches the sensing antenna unit of the sensing relay node. The sensing antenna unit includes N e ≥ 1 antennas. The transmission signal received by the sensing relay node is an N e -dimensional vector, denoted as:

[0206] Y m (t) = C m X m (t) + n c (t)

[0207] where C m represents an N p ×N e -th order channel, and n c (t) represents an N e -dimensional channel noise.

[0208] Then the sensing relay node extracts the energy signal and the digital control signal from the received signal Y m (t). Taking time-division multiplexing as an example for illustration. Assume the time period is T m , and the time switching ratio is α, indicating that the energy signal is transmitted for αT m time, and the digital control signal is transmitted for (1 - α)T m time. The digital control signal includes the second communication signal, the second sensing signal, and the control instruction.

[0209] The extracted energy signal is denoted as:

[0210] Q m = ξΕ t [||C m X m (t)|| 2 )αT = ξtr(C m V m V m H C m H )αT m

[0211] where ξ represents the energy harvesting efficiency, and the superscript H represents the conjugate transpose.

[0212] According to Shannon's formula, the amount of transmitted information (i.e., the digital control signal) is:

[0213]

[0214] where σ c 2Let \(N_0\) denote the noise power, \(B\) denote the channel bandwidth, and \(I\) denote the identity matrix.

[0215] In one embodiment, the transmit beamforming power \(P\) of the access node can be set t to ensure that the signal-sensing relay node can receive sufficient energy and can maximize the transmitted information.

[0216] During the time period \(T'\) m , the signal-sensing relay node utilizes the energy brought by the power supply of the energy signal and uses \(N\) p ≥ 1 antennas to transmit a second sensing signal, a second communication signal, or a communication and sensing combined signal to the first target node.

[0217] Assume that the baseband signal corresponding to the digital control signal at time \(t\) is denoted as \(d\) m (t), which is an \(L\)-dimensional vector. After being processed by the radio frequency transceiver unit, this baseband signal is converted into a second passband analog signal of an \(N\) e -dimensional digital control signal, denoted as

[0218] \(P\) m (t)= \(W\) m \(d\) m (t)

[0219] where \(W\) m denotes the transmit beamforming matrix of the signal-sensing relay node of order \(N\) e × \(L\). If there is an overlapping coverage area between the second passband analog signal and the first passband analog signal of the access node, the two passband analog signals are made orthogonal in dimensions such as frequency band or time period to reduce interference.

[0220] When the second passband analog signal of the digital control signal uses \(N\) d ≥ 1 antennas to send data to the first target node, after passing through an \(N\) d × \(N\) e -order channel \(H\) m , the signal received by the first target node is an \(N\) d -dimensional vector, denoted as:

[0221] \(q\) m (t)= \(H\) m \(P\) m (t)+ \(n\) h (t)

[0222] where \(n\) h (t) represents the channel noise power.

[0223] According to Shannon's formula, the amount of information transmitted by the digital control signal is:

[0224]

[0225] Among them, β′ represents the channel bandwidth.

[0226] In one embodiment, the transmission beamforming power of the access node can be set to ensure that the first target node can maximize the received information.

[0227] When the second sensing signal is included in the numerical control signal to sense the first target node, the sensed reflection signal z m (t) is expressed as:

[0228] z m (t) = G m W m d m (t) + n g (t)

[0229] Among them, G m represents the reflection matrix of the first target node of order N e ×N e order, and n g (t) represents the channel noise of dimension N g dimension.

[0230] The access node or the sensing relay node calculates the sensed reflection signal z m (t), and then the first sensing data or the second sensing data can be obtained.

[0231] In one embodiment, the sensing error during the calculation of the sensing result can be estimated by the maximum likelihood method for the reflection matrix of the first target node, and the corresponding sensing error can be expressed as:

[0232]

[0233] Among them, represents the noise power.

[0234] During the time period τ m when the first target node generates a communication feedback signal, the first target node uses the antenna to send the communication feedback signal to the sensing relay node, and at this time the communication feedback signal is as follows:

[0235] Assume that at time t, the baseband signal of the communication feedback signal is expressed as b m (t), and after radio frequency conversion, it becomes a third passband analog signal of dimension N d dimension, which is expressed as:

[0236] f m (t) = F m b m (t)

[0237] Among them, F m represents Nd The transmit - end beamforming matrix of the first target node of ×L order.

[0238] This third - passband analog signal passes through an N e ×N d - order channel O m and then reaches the communication - sensing relay node. The communication feedback signal received by the communication - sensing relay node is an N e - dimensional vector, denoted as:

[0239] R m (t)=O m f m (t)+n o (t)

[0240] where n o (t) represents the N e - dimensional channel noise.

[0241] According to the Shannon formula, the amount of information received by the communication - sensing relay node is:

[0242]

[0243] where σ o 2 represents the noise power.

[0244] In one embodiment, the transmit - end beamforming power of the first target node can be set to ensure that the communication - sensing relay node can maximize the received information.

[0245] In the τ′ m time period, the communication - sensing relay node uplinks and transmits the collected communication feedback signal to the access node. That is, the communication - sensing relay node forwards the received communication feedback signal of the first target node to the access antenna unit of the access node to achieve communication.

[0246] At time t, the base - band signal of the communication feedback signal on the communication - sensing relay node is e m (t). This base - band signal e m (t) is radio - frequency converted by the radio - frequency transceiver unit into an N d - dimensional fourth - channel analog signal, denoted as:

[0247] u m (t)=U m e m (t)

[0248] where U m represents the transmit - end beamforming matrix of the communication - sensing relay node of N m ×L order.

[0249] The fourth - channel analog signal passes through an Np ×N e th - order channel Ω m and then arrives at the access node. The signal received by the access node is an N e -dimensional vector, denoted as:

[0250] v m (t) = Ω m u m (t) + n q (t)

[0251] where n q (t) represents the channel additive white Gaussian noise.

[0252] According to the Shannon formula, the amount of information contained in the communication feedback signal received by the access node is:

[0253]

[0254] where σ q 2 represents the noise power.

[0255] In one embodiment, the access node can be ensured to maximize the received information by setting the transmit beamforming power of the sensing relay node. The above describes the process of the communication feedback signal or sensing data of the first target node being relayed back to the access node through the sensing relay node.

[0256] As can be seen from the above, the signal transmission system of the embodiments of the present application includes an access node for generating a transmission signal, at least one sensing relay node for receiving the transmission signal, and at least one first target node; wherein the signal transmission system includes an access node for generating a transmission signal, at least one sensing relay node, and at least one first target node; wherein the transmission signal includes an energy signal and a first information signal, and the sensing relay node acquires the energy in the energy signal to realize wireless functions, obtains energy from the transmission signal, and sends a second information signal to the first target node according to the attribute, receives the sensing reflection signal or communication feedback signal generated by the first target node, and sends the communication feedback signal to the access node, or generates first sensing data according to the sensing reflection signal. Since the transmission signal in the embodiments of the present application includes an energy signal and a first information signal, the sensing relay node can be used for both communication and sensing at the same time. On the one hand, the communication and sensing functions are completed using the first information signal to achieve ubiquitous sensing; on the other hand, energy supply can be realized, avoiding the need to frequently replace batteries, reducing maintenance costs, and reducing environmental pollution caused by discarded batteries, enabling the sensing relay node to be applied to more sensing scenarios and greatly reducing the implementation difficulty of ubiquitous sensing applications.

[0257] The embodiments of the present application also provide a signal transmission method applied to the above-mentioned sensing relay node.

[0258] Figure 9 It is an optional flowchart of the signal transmission method provided by an embodiment of the present application. Figure 9 The method in [it] may include but is not limited to steps S910 to S950. At the same time, it can be understood that the embodiment of the present application Figure 9 does not specifically limit the order of steps S910 to S950 in [it], and the order of steps can be adjusted according to actual needs, or some steps can be reduced or added.

[0259] Step S910: Receive the transmission signal sent by the access node.

[0260] In one embodiment, the transmission signal includes an energy signal and a first information signal. The transmission signal has two signal forms. The first is the independent signal form, and the other is the fusion signal form.

[0261] When the transmission signal adopts the independent signal form, the transmission signal includes separately and independently: an energy signal, a first communication signal, and a first sensing signal, and the three signals are serially connected.

[0262] When the transmission signal adopts the fusion signal form, the transmission signal is a signal and energy co - transmission fusion signal.

[0263] In one embodiment, the transmission signal is a signal and energy co - transmission fusion signal, and the signal and energy co - transmission fusion signal is generated by the access node based on the signal fusion allocation parameter information according to the first communication signal, the first sensing signal, and the energy signal; the signal fusion allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value. The first allocation parameter value corresponds to the first communication signal, the second allocation parameter value corresponds to the first sensing signal, and the third allocation parameter value corresponds to the energy signal.

[0264] Step S920: Collect the energy in the energy signal to achieve wireless power supply.

[0265] In one embodiment, the energy management is to charge the battery using the received energy signal. For example, in some application scenarios where it is inconvenient to replace the battery or charge, this embodiment uses wireless energy to supply power to the signal and sensing relay node, which can solve the working and endurance problems of the signal and sensing relay node. For example, for aerospace applications, it can supplement power for satellites (a type of signal and sensing relay node) with insufficient solar energy extraction, assist the satellite to improve endurance, and complete sensing tasks; or for space exploration applications, it can supply power to the signal and sensing relay node equipment on the lunar surface to assist it in completing sensing tasks.

[0266] Step S930: Obtain a second information signal according to the first information signal.

[0267] In one embodiment, the second information signal includes one of a second communication signal, a second sensing signal, or a communication-sensing combined signal.

[0268] Step S940: Based on the information signal and the attributes of the first target node, send the second information signal to the first target node.

[0269] In one embodiment, send the second information signal to the first target node so that the first target node obtains communication data according to the second communication signal and generates a communication feedback signal, or forms a sensing reflection signal according to the second sensing signal, or forms a communication feedback signal and a sensing reflection signal according to the communication-sensing combined signal, or forms a communication feedback signal and a sensing reflection signal according to the communication-sensing combined signal.

[0270] Step S950: Receive the first feedback information generated by the first target node according to the second information signal.

[0271] In one embodiment, the first feedback information may be a communication feedback signal generated by the first target node according to the second information signal, and the communication feedback signal is sent to the access node. Or, the first feedback information is a sensing reflection signal reflected by the first target node, and first sensing data is generated according to the sensing reflection signal. Or, receive the communication feedback signal generated by the first target node according to the communication-sensing combined signal and the sensing reflection signal reflected by the first target node, send the communication feedback signal to the access node, and generate first sensing data according to the sensing reflection signal.

[0272] In one embodiment, the transmission signal includes a sensing signal, a communication signal, or a communication-sensing combined signal; the attributes of the first target node include: a first attribute, a second attribute, and a third attribute;

[0273] In one embodiment, referring to Figure 10 , is a specific implementation flowchart of step S940 shown in an embodiment. In the embodiment of the present application, step S940 of sending the second information signal to the first target node based on the information signal and the attributes of the first target node includes:

[0274] Step S941, if the attribute of the first target node is the first attribute, the radio frequency transceiver unit sends the second sensing signal to the first target node based on the control instruction to receive the sensing reflection signal generated by the first target node according to the second sensing signal.

[0275] Step S942, if the attribute of the first target node is the second attribute, the radio frequency transceiver unit sends the second communication signal to the first target node based on the control instruction so that the first target node obtains communication data according to the second communication signal and generates a communication feedback signal.

[0276] Step S943, if the attribute of the first target node is the third attribute, the radio frequency transceiver unit sends a communication and sensing combined signal to the first target node based on the control instruction, so that the first target node generates a communication feedback signal and a sensing reflection signal according to the communication signal.

[0277] In one embodiment, the first target node includes three types, namely the detection target type, the communication node type, and the fusion type.

[0278] Among them, the detection target type is the object to be detected that only needs to be sensed, which is an object that needs to be sensed. The sensing in the embodiments of the present application can be divided into sensing functions such as detection sensing, ranging sensing, and imaging sensing. For example, using a sensor to detect and sense the contour of the object to be detected, using a sensor to measure distance information such as the distance, speed, and azimuth of the object to be detected for ranging sensing, using a sensor to image and sense the image of the object to be detected, etc. The object to be detected here can be: people, vehicles, equipment, buildings, etc.

[0279] The communication node type is a wireless device that only needs to communicate. A wireless device is a device that needs to perform wireless data interaction, such as a wireless communication device or a facility device with wireless functions.

[0280] The fusion type is a wireless detection object that needs to perform communication and sensing simultaneously. An infinite detection object is a person or device that needs to be sensed and also needs to perform wireless data interaction. For example, the device is integrated on the object to be detected, such as an autonomous vehicle, a mobile robot, an aircraft, a pedestrian making a mobile call, etc.

[0281] In one embodiment, the attributes of different first target nodes are obtained according to the above first target node types, which are the first attribute, the second attribute, and the third attribute respectively. Among them, the first attribute corresponds to the detection target type, the second attribute corresponds to the communication node type, and the third attribute corresponds to the fusion type.

[0282] In one embodiment, the communication and sensing relay node transmits different signals to the first target node according to the different attributes of the first target node. Specifically, the radio frequency front-end unit uses the radio frequency antenna to send the second sensing signal, the second communication signal, or the communication and sensing combined signal to the first target node according to the control instruction.

[0283] In one embodiment, if the attribute of the first target node is the first attribute, that is, the first target node is of the detection target type and is an object to be detected that only needs to be sensed, therefore, the radio frequency transceiver unit only sends a sensing signal to the first target node based on the control instruction to obtain the sensing reflection signal generated by the first target node according to the second sensing signal.

[0284] If the attribute of the first target node is the second attribute, that is, the first target node is of the communication node type and is a wireless device that only needs to communicate. Therefore, the radio frequency transceiver unit sends only the communication signal to the first target node based on the control instruction, so as to obtain the communication feedback signal generated by the first target node according to the second communication signal.

[0285] If the attribute of the first target node is the third attribute, that is, the first target node is of the fusion type and is a wireless detector that needs to communicate and sense simultaneously. Therefore, the radio frequency transceiver unit sends the communication and sensing combined signal to the first target node based on the control instruction. The communication and sensing combined signal contains both the second communication signal and the second sensing signal. Therefore, the communication feedback signal and the sensing reflection signal generated by the first target node according to the communication and sensing combined signal can be obtained.

[0286] As can be seen from the above, different signals are sent according to the different attributes of the first target node, and the first target node can be flexibly and dynamically adjusted according to actual needs, expanding the application scenarios of the first target node.

[0287] In one embodiment, after step S940, it further includes: receiving the sensing reflection signal, performing detection and analysis according to the sensing reflection signal, and obtaining the first sensing data.

[0288] In one embodiment, the sensing reflection signal is received and detection and analysis are performed according to the sensing reflection signal to obtain the sensing data. In this embodiment, the first sensing signal can form the sensing reflection signal after being reflected by the first target node. The sensing data can be obtained through the sensing reflection signal. The sensing data can be various different sensing information such as the contour, orientation, distance, speed, appearance, etc. of the first target node. Specifically, which sensing information to obtain can be set by the access node in the control instruction and can be set according to actual needs. This application embodiment is only for illustration and is not limited.

[0289] In one embodiment, after step S950, it further includes: receiving the communication feedback signal, and generating a communication transmission signal from the communication feedback signal and sending it to the access node.

[0290] In one embodiment, the sensing reflection signal can be sent back to the communication and sensing relay node, and the communication and sensing relay node obtains the first sensing data according to the sensing reflection signal. Due to the problem of the transmission power of the first target node, the communication and sensing relay node can also send the obtained first sensing data back to the access node, and the access node performs further operations according to the sensing data. In another embodiment, the sensing reflection signal can also go through processes such as reflection, diffraction, and penetration of obstacles, and be received by other communication and sensing relay nodes, and the first sensing data is sent back to the corresponding access node. In another embodiment, due to the problem of the transmission power of the first target node, the communication feedback signal can also be sent back to the access node through the communication and sensing relay node to achieve communication. This embodiment does not make specific limitations on the transmission path.

[0291] It should be noted that the signal transmission method in the embodiments of the present application is the execution process of the sensing relay node in the signal transmission system in the above embodiments. It belongs to the same inventive concept as the above signal transmission system. Therefore, these embodiments have the same implementation principle and technical effects, and will not be elaborated here.

[0292] The embodiments of the present application further provide a signal transmission method, which is applied to the above access node.

[0293] Figure 11 It is an optional flowchart of the signal transmission method provided by the embodiments of the present application. Figure 11 The method in may include but is not limited to steps S1110 to S1130. At the same time, it can be understood that the embodiments of the present application do not specifically limit the order of steps S1110 to S1130 in, and the order of steps can be adjusted according to actual needs, or some steps can be reduced or added. Figure 11 In step S1110, a transmission signal is generated.

[0294] In one embodiment, the transmission signal has two signal forms. The first is an independent signal form, and the other is a fusion signal form.

[0295] When the transmission signal adopts the independent signal form, the transmission signal includes, respectively and independently: an energy signal, a first communication signal, and a first sensing signal, and the three signals are serially connected.

[0296] When the transmission signal adopts the fusion signal form, the transmission signal is an energy and communication co-transmission fusion signal.

[0297] In one embodiment, referring to

[0298] In one embodiment, is a specific implementation flowchart of step S1110 shown in an embodiment. In step S1110 of generating a transmission signal in the embodiments of the present application, it includes: Figure 12 In step S1111, signal fusion allocation parameter information is generated.

[0299] In one embodiment, the signal fusion allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value. Among them, the first allocation parameter value is used to characterize the first communication signal, the second allocation parameter value is used to characterize the first sensing signal, and the third allocation parameter value is used to characterize the energy signal.

[0300] In one embodiment, the signal fusion allocation parameter information can be fused based on a carrier, or based on time, or based on frequency bands, or other fusion methods. The above three fusion methods will be described in detail below.

[0301] In one embodiment, the signal fusion allocation parameter information can be fused based on a carrier, or based on time, or based on frequency bands, or other fusion methods. The above three fusion methods will be described in detail below.

[0302] Step S1112: Based on the signal fusion allocation parameter information, generate a signal-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal.

[0303] The first fusion method: Fusion based on the carrier, that is, wavelength division multiplexing.

[0304] In one embodiment, referring to Figure 13 , which is a specific implementation flowchart of step S1112 shown in an embodiment. In the embodiment of the present application, the step S1112 of generating a signal-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes:

[0305] Step S1113: Allocate the preset carrier according to the signal fusion allocation parameter information to obtain sub-carrier information.

[0306] In one embodiment, based on the channel quality related parameters, the data streams corresponding to the communication signal, the sensing signal, and the energy signal in the baseband signal can be pre-allocated for sub-carriers, power, and spectrum in the same frequency band to generate sub-carrier information. Here, the sub-carrier information corresponds to the allocation parameters of different signals. For example, the sub-carrier information includes: communication signal sub-carriers, sensing signal sub-carriers, energy signal sub-carriers. Different signals are allocated to different sub-carriers to obtain the corresponding baseband signals, which are respectively parallel communication signal baseband signals, sensing signal baseband signals, and energy signal baseband signals.

[0307] Step S1114: Based on the sub-carrier information, generate a signal-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within the preset frequency band.

[0308] In one embodiment, the above-mentioned parallel communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal are subjected to serial-parallel conversion to generate parallel data streams, and then the parallel data streams are classified. Corresponding modulation parameter allocations are made to the baseband signals in the parallel data streams according to the allocation parameters of different signals, such as power spectrum allocation, spectrum allocation, etc. Finally, the communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal in the parallel data streams are modulated onto the pre-allocated sub-carriers to obtain a serial data stream.

[0309] As can be seen from the above, in the embodiment of the present application, fusion is performed based on the carrier, and within the same frequency band, sub-carriers are allocated, so that a signal-energy co-transmission fusion signal is generated according to the first communication signal, the first sensing signal, and the energy signal, realizing the transmission of information and energy in the same signal.

[0310] The second fusion method: Fusion based on time, that is, time division multiplexing.

[0311] In one embodiment, referring to Figure 14 , which is another specific implementation flowchart of step S1112 shown in an embodiment. In the embodiment of the present application, based on the signal fusion allocation parameter information, the step S1112 of generating a signal-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal includes:

[0312] Step S1115: Allocate the preset transmission time according to the signal fusion allocation parameter information to obtain transmission time information.

[0313] In one embodiment, based on the transmission time-related parameters, the data streams corresponding to the communication signal, the sensing signal, and the energy signal in the baseband signal can be time-allocated at different transmission times to generate transmission time information. Here, the transmission time information corresponds to the allocation parameters of different signals. For example, the transmission time information includes: the communication signal transmission time, the sensing signal transmission time, and the energy signal transmission time. Different signals are allocated to different transmission times to obtain corresponding baseband signals, which are respectively parallel communication signal baseband signals, sensing signal baseband signals, and energy signal baseband signals.

[0314] Step S1116: Based on the transmission time information, generate a signal-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within the preset frequency band.

[0315] In one embodiment, the above parallel communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal are subjected to serial-parallel conversion to generate parallel data streams, and then the parallel data streams are classified. The baseband signals in the parallel data streams are modulated accordingly according to the transmission times of different signals. Finally, the communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal in the parallel data streams are obtained as a serial data stream according to the pre-allocated transmission time.

[0316] As can be seen from the above, in the embodiment of the present application, fusion is performed based on the transmission time, and the transmission time is allocated within the preset frequency band, so that a signal-energy co-transmission fusion signal is generated according to the first communication signal, the first sensing signal, and the energy signal, realizing the transmission of information and energy in the same signal.

[0317] The third fusion method: Fusion based on frequency band, that is, spatial division multiplexing.

[0318] In one embodiment, referring to Figure 15 , which is another specific implementation flowchart of step S1112 shown in an embodiment. In the embodiment of the present application, based on the signal fusion allocation parameter information, the step S1112 of generating a signal-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal includes:

[0319] Step S1117, allocate the transmission frequency band according to the signal fusion allocation parameter information to obtain the transmission frequency band information.

[0320] In one embodiment, according to the relevant parameters of the transmission frequency band, the data streams corresponding to the communication signal, the sensing signal, and the energy signal in the baseband signal are allocated to different transmission frequency bands, and frequency band allocation is performed to generate the transmission frequency band information. Here, the transmission frequency band information corresponds to the allocation parameters of different signals. For example, the transmission frequency band information includes: the communication signal transmission frequency band, the sensing signal transmission frequency band, and the energy signal transmission frequency band. Different signals are allocated to different frequency bands to obtain the corresponding baseband signals, which are respectively the parallel communication signal baseband signal, the sensing signal baseband signal, and the energy signal baseband signal.

[0321] Step S1118, based on the transmission frequency band information, generate a signal energy co - transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal in different frequency bands.

[0322] In one embodiment, the above - mentioned parallel communication signal baseband signal, sensing signal baseband signal, and energy signal baseband signal are subjected to serial - parallel conversion to generate parallel data streams, and then the parallel data streams are classified. The baseband signals in the parallel data streams are modulated accordingly according to the transmission time of different signals. Finally, the communication signal baseband signal, the sensing signal baseband signal, and the energy signal baseband signal in the parallel data streams are obtained as a serial data stream according to the pre - allocated transmission time.

[0323] As can be seen from the above, in the embodiment of the present application, fusion is performed based on the transmission frequency band. The frequency band is allocated, and a signal energy co - transmission fusion signal is generated according to the first communication signal, the first sensing signal, and the energy signal in different frequency bands, so as to realize the transmission of information and energy in the same signal.

[0324] Through the above three methods, the signal energy co - transmission fusion signal sent by the access node includes the relevant information of the first communication signal, the first sensing signal, and the energy signal. At the same time, it realizes providing electrical energy for the signal - sensing relay node, as well as interacting and controlling with the signal - sensing relay node and extracting data. The signal - sensing relay node then implements integrated communication and sensing transmission. In this embodiment, the access node and the signal - sensing relay node can perform wireless interaction to complete the control of the signal - sensing relay node and the reading of sensing data, avoiding the signal - sensing relay node becoming an information island and improving the effectiveness of communication and sensing.

[0325] Step S1120, send the transmission signal to the signal - sensing relay node.

[0326] In one embodiment, a transmission signal is sent so that the communication-sensing relay node can collect the energy in the energy signal to achieve wireless power supply, and a second information signal is sent according to the attributes of the first target node, and the second information signal is generated from the first information signal; the second information signal includes one of a second communication signal, a second sensing signal, or a communication-sensing combined signal.

[0327] Step S1130, receiving the second feedback information of the second information signal.

[0328] In one embodiment, the second feedback information is one or more of: a communication feedback signal generated by the first target node according to the second communication signal, a sensing reflection signal generated by the first target node according to the second sensing signal, and first sensing data generated by the communication-sensing relay node according to the sensing reflection signal.

[0329] In one embodiment, the first information signal includes a first communication signal and / or a first sensing signal, and further includes receiving a direct communication feedback signal and / or a direct sensing reflection signal generated by the second target node according to the first information signal.

[0330] It should be noted that the signal transmission method in the embodiments of the present application is the execution process of the communication-sensing relay node in the signal transmission system in the above embodiments, and belongs to the same inventive concept as the above signal transmission system. Therefore, these embodiments have the same implementation principle and technical effects, which will not be elaborated here.

[0331] In addition, an embodiment of the embodiments of the present application further provides a computer device, which includes: a memory, a processor, and a computer program stored on the memory and executable on the processor.

[0332] The processor and the memory can be connected through a bus or other means.

[0333] The memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory may optionally include a memory remotely set relative to the processor, and these remote memories can be connected to the processor through a network. Examples of the above networks include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0334] The non-transitory software programs and instructions required to implement the signal transmission method in the above embodiments are stored in the memory, and when executed by the processor, execute the signal transmission method in the above embodiments.

[0335] In addition, an embodiment of the embodiments of the present application further provides a computer-readable storage medium storing computer-executable instructions, which are executed by a processor or a controller, for example, executed by a processor in the above computer device embodiment, enabling the above processor to execute the signal transmission method in the above embodiment.

[0336] For another example, being executed by a processor in the above computer device embodiment enables the above processor to execute the signal transmission method in the above embodiment.

[0337] Those of ordinary skill in the art can understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and their appropriate combinations. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory, or other memory technologies, CD-ROM, digital versatile disk (DVD), or other optical disk storage, magnetic cassette, tape, magnetic disk storage, or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, a communication medium typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0338] The above is a specific description of the preferred embodiments of the embodiments of the present application. However, the embodiments of the present application are not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the embodiments of the present application, and these equivalent deformations or substitutions are all included within the scope defined by the claims of the embodiments of the present application.

Claims

1. A signal transmission system, characterized in that, Including: An access node, which is used to generate a transmission signal, and the transmission signal includes an energy signal and a first information signal; At least one communication-sensing relay node, which is communicatively connected to the access node. The communication-sensing relay node is used to receive the transmission signal sent by the access node, collect the energy in the energy signal to achieve wireless power supply, and send a second information signal according to the attributes of the first target node. The second information signal is generated from the first information signal and includes one of a second communication signal, a second sensing signal, or a communication-sensing combined signal; At least one first target node, which is used to receive the second information signal from the communication-sensing relay node, and obtain communication data according to the second communication signal and generate a communication feedback signal; or, form a sensing reflection signal according to the second sensing signal; or, form the communication feedback signal and the sensing reflection signal according to the communication-sensing combined signal; The communication-sensing relay node is further used to receive the communication feedback signal generated by the first target node according to the second communication signal and send the communication feedback signal to the access node; or, receive the sensing reflection signal reflected by the first target node and generate first sensing data according to the sensing reflection signal; or, receive the communication feedback signal generated by the first target node according to the communication-sensing combined signal and the sensing reflection signal reflected by the first target node, send the communication feedback signal to the access node, and generate first sensing data according to the sensing reflection signal.

2. The signal transmission system according to claim 1, characterized in that, The access node includes: A radio baseband unit, which is used to generate the transmission signal; A radio frequency front-end unit, which is connected to the radio baseband unit; An access antenna unit, which is connected to the radio frequency front-end unit; The radio frequency front-end unit is used to receive the transmission signal and modulate the transmission signal into a radio frequency transmission signal and send it to the access antenna unit; The access antenna unit is used to send the radio frequency transmission signal to the communication-sensing relay node; The access antenna unit is further used to receive one or more of the communication feedback signal, the sensing reflection signal, and the first sensing data.

3. A signal transmission system according to claim 2, characterized in that, The first information signal includes a first communication signal and / or a first sensing signal; The system further includes: At least one second target node, which is used to receive the first communication signal and generate a direct communication feedback signal, and / or receive the first sensing signal and generate a direct sensing reflection signal; The access node is further used to receive the direct communication feedback signal and / or the direct sensing reflection signal from the second target node.

4. A signal transmission system according to claim 2, characterized in that, The access node further includes: an access control unit; The access control unit is connected to the radio baseband unit, the radio frequency front-end unit, and the access antenna unit; The access control unit is used to generate a first global control signal, and the first global control signal is used to control the working states of the radio baseband unit, the radio frequency front-end unit, and the access antenna unit.

5. A signal transmission system according to claim 4, characterized in that, The access control unit is further configured to receive the sensed reflection signal transmitted by the access antenna unit, and perform detection and analysis based on the sensed reflection signal to obtain second sensed data.

6. A signal transmission system according to claim 1, characterized in that, The first information signal includes a first communication signal and a first sensing signal, and the transmission signal is an information-energy co-transmission fusion signal; When the access node is used to generate a transmission signal, the following operations are performed: Generate signal fusion allocation parameter information, where the signal fusion allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value. The first allocation parameter value corresponds to the first communication signal, the second allocation parameter value corresponds to the first sensing signal, and the third allocation parameter value corresponds to the energy signal; Based on the signal fusion allocation parameter information, generate the information-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal.

7. A signal transmission system according to claim 6, wherein, The generating the information-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes: Allocate a preset carrier according to the signal fusion allocation parameter information to obtain sub-carrier information, where the sub-carrier information includes: a communication signal sub-carrier, a sensing signal sub-carrier, and an energy signal sub-carrier; Based on the sub-carrier information, generate the information-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

8. A signal transmission system according to claim 6, wherein, The generating the information-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes: Allocate a preset transmission time according to the signal fusion allocation parameter information to obtain transmission time information, where the transmission time information includes: a communication signal transmission time, a sensing signal transmission time, and an energy signal transmission time; Based on the transmission time information, generate the information-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

9. A signal transmission system according to claim 6, wherein, The generating the information-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes: Allocate a transmission frequency band according to the signal fusion allocation parameter information to obtain transmission frequency band information, where the transmission frequency band information includes: a communication signal transmission frequency band, a sensing signal transmission frequency band, and an energy signal transmission frequency band; Based on the transmission frequency band information, generate the information-energy co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal in different frequency bands.

10. A signal transmission system according to claim 1, characterized in that, The information-sensing relay node includes: A sensing transceiver unit, configured to receive the transmission signal sent by the access node, and perform signal extraction on the transmission signal to obtain the energy signal and the digital control signal, and the first information signal is the digital control signal; An energy management unit, connected to the sensing transceiver unit, configured to receive the energy signal, and collect the energy in the energy signal to achieve wireless power supply; A digital control demodulation unit, which is used to demodulate the digital control signal to obtain one of a second communication signal, a second sensing signal, or a communication and sensing combined signal; A baseband transceiver unit, which is used to obtain a control instruction according to the second sensing signal or the communication and sensing combined signal; A radio frequency transceiver unit, which is used to send the second sensing signal, and / or, the second communication signal, and / or, the communication and sensing combined signal to the first target node according to the control instruction.

11. A signal transmission system according to claim 10, characterized in that, The attributes of the first target node include: a first attribute, a second attribute, and a third attribute; when the radio frequency transceiver unit is used to send the second sensing signal, and / or, the second communication signal, and / or, the communication and sensing combined signal to the first target node according to the control instruction, the following steps are performed: If the attribute of the first target node is the first attribute, the radio frequency transceiver unit sends the second sensing signal to the first target node based on the control instruction to receive a sensing reflection signal generated by the first target node according to the second sensing signal; If the attribute of the first target node is the second attribute, the radio frequency transceiver unit sends the second communication signal to the first target node based on the control instruction, so that the first target node obtains communication data according to the second communication signal and generates a communication feedback signal; If the attribute of the first target node is the third attribute, the radio frequency transceiver unit sends the communication and sensing combined signal to the first target node based on the control instruction, so that the first target node generates a communication feedback signal and a sensing reflection signal according to the communication and sensing combined signal.

12. A signal transmission system according to claim 10, wherein The communication and sensing relay node further includes: a sensing operation unit, which is used to receive the sensing reflection signal and perform detection and analysis according to the sensing reflection signal to obtain first sensing data.

13. A signal transmission system according to claim 10, wherein, The radio frequency transceiver unit is further used to receive the communication feedback signal and send the communication feedback signal to the access node through the sensing transceiver unit.

14. A signal transmission system according to claim 12, characterized in that, The communication and sensing relay node further includes: a sensing control unit; The sensing control unit is connected to the sensing transceiver unit, the energy management unit, the digital control demodulation unit, the baseband transceiver unit, the radio frequency transceiver unit, and the sensing operation unit; The sensing control unit is used to generate a second global control signal, and the second global control signal is used to control the working states of the sensing transceiver unit, the energy management unit, the digital control demodulation unit, the baseband transceiver unit, the radio frequency transceiver unit, and the sensing operation unit.

15. A signal transmission method, characterized in that, Including: Receiving a transmission signal sent by an access node, where the transmission signal includes an energy signal and a first information signal; Collecting the energy in the energy signal to achieve wireless power supply; Obtaining a second information signal according to the first information signal, where the second information signal includes one of a second communication signal, a second sensing signal, or a communication and sensing combined signal; Based on the attributes of the first target node, send the second information signal to the first target node, so that the first target node obtains communication data according to the second communication signal and generates a communication feedback signal, or forms a sensing reflection signal according to the second sensing signal, or forms the communication feedback signal and the sensing reflection signal according to the communication and sensing combined signal; Receive the communication feedback signal generated by the first target node according to the second information signal, and send the communication feedback signal to the access node; or receive the sensing reflection signal reflected by the first target node, and generate first sensing data according to the sensing reflection signal; or receive the communication feedback signal generated by the first target node according to the communication and sensing combined signal and the sensing reflection signal reflected by the first target node, and send the communication feedback signal to the access node, and generate first sensing data according to the sensing reflection signal.

16. A signal transmission method according to claim 15, wherein, The transmission signal is a communication and energy co-transmission fusion signal, and the communication and energy co-transmission fusion signal is generated by the access node based on signal fusion allocation parameter information according to the first communication signal, the first sensing signal, and the energy signal; The signal fusion allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value. The first allocation parameter value corresponds to the first communication signal, the second allocation parameter value corresponds to the first sensing signal, and the third allocation parameter value corresponds to the energy signal.

17. A signal transmission method according to claim 16, characterized in that, The attributes of the first target node include: a first attribute, a second attribute, and a third attribute; The sending the second information signal to the first target node based on the attributes of the first target node includes: If the attribute of the first target node is the first attribute, the radio frequency transceiver unit sends the second sensing signal to the first target node based on the control instruction to receive the sensing reflection signal generated by the first target node according to the second sensing signal; If the attribute of the first target node is the second attribute, the radio frequency transceiver unit sends the second communication signal to the first target node based on the control instruction, so that the first target node obtains communication data according to the second communication signal and generates a communication feedback signal; If the attribute of the first target node is the third attribute, the radio frequency transceiver unit sends the communication and sensing combined signal to the first target node based on the control instruction, so that the first target node generates a communication feedback signal and a sensing reflection signal according to the communication and sensing combined signal.

18. A signal transmission method, characterized in that, Includes: Generate a transmission signal, where the transmission signal includes an energy signal and a first information signal; Send the transmission signal to the communication and sensing relay node, so that the communication and sensing relay node can collect the energy in the energy signal to achieve wireless power supply, and send a second information signal according to the attributes of the first target node, where the second information signal is generated from the first information signal; the second information signal includes one of a second communication signal, a second sensing signal, or a communication and sensing combined signal; Receiving one or more of the communication feedback signal generated by the first target node according to the second communication signal, the sensing reflection signal generated by the first target node according to the second sensing signal, and the first sensing data generated by the sensing relay node according to the sensing reflection signal.

19. A signal transmission method according to claim 18, characterized in that, The first information signal includes a first communication signal and / or a first sensing signal, and the method further includes: Receiving a direct communication feedback signal generated by the second target node according to the first communication signal, and / or a direct sensing reflection signal generated according to the first sensing signal.

20. A signal transmission method according to claim 18, characterized in that The first information signal includes a first communication signal and a first sensing signal, and the transmission signal is an energy-communication co-transmission fusion signal; The generating the transmission signal includes: Generating signal fusion allocation parameter information, where the signal fusion allocation parameter information includes: a first allocation parameter value, a second allocation parameter value, and a third allocation parameter value, the first allocation parameter value corresponds to the first communication signal, the second allocation parameter value corresponds to the first sensing signal, and the third allocation parameter value corresponds to the energy signal; Based on the signal fusion allocation parameter information, generating the energy-communication co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal.

21. A signal transmission method according to claim 20, wherein, The generating the energy-communication co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes: Allocating a preset carrier according to the signal fusion allocation parameter information to obtain sub-carrier information, where the sub-carrier information includes: a communication signal sub-carrier, a sensing signal sub-carrier, and an energy signal sub-carrier; Based on the sub-carrier information, generating the energy-communication co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

22. A signal transmission method according to claim 20, wherein, The generating the energy-communication co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes: Allocating a preset transmission time according to the signal fusion allocation parameter information to obtain transmission time information, where the transmission time information includes: a communication signal transmission time, a sensing signal transmission time, and an energy signal transmission time; Based on the transmission time information, generating the energy-communication co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within a preset frequency band.

23. A signal transmission method according to claim 20, wherein The generating the energy-communication co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal based on the signal fusion allocation parameter information includes: Allocating a transmission frequency band according to the signal fusion allocation parameter information to obtain transmission frequency band information, where the transmission frequency band information includes: a communication signal transmission frequency band, a sensing signal transmission frequency band, and an energy signal transmission frequency band; Based on the transmission frequency band information, generating the energy-communication co-transmission fusion signal according to the first communication signal, the first sensing signal, and the energy signal within different frequency bands.

24. An electronic device, characterized in that, The electronic device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements the signal transmission method according to any one of claims 15 to 17, or the signal transmission method according to any one of claims 18 to 23.

25. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the signal transmission method according to any one of claims 15 to 17, or the signal transmission method according to any one of claims 18 to 23.

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