Multiplexing method and system of environmental Internet of Things

Abstract

The embodiment of the invention provides a multiplexing method and system of an environmental Internet of Things, and the method comprises the steps that a first entity configures or pre-configures a communication mode for Internet of Things equipment, the communication mode comprises at least one of the following modes: a coexistence mode of resources occupied by the Internet of Things devices, a multiplexing mode of a plurality of Internet of Things devices, and a duplex mode of the Internet of Things devices. According to the embodiment of the invention, the resource reuse problem of environment Internet of Things equipment in the related technology can be solved.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular, to a method and system for multiplexing an ambient Internet of Things (IoT). Background Art

[0002] With the continuous progress of radio technology, a large number of various radio services have emerged. In addition to the cellular service between a base station and a terminal, in a Long Term Evolution (LTE) system and a New Radio (NR) system, there is also an Internet of Things (IoT) service, that is, communication between a base station and an IoT device. IoT devices are usually powered by traditional batteries with a limited lifespan. Under some extreme environmental conditions, maintaining the continuous operation of IoT devices and replacing batteries can be very challenging. On the other hand, an increasingly wide range of large-scale commercial scenario use cases require IoT devices with very small sizes and longer lifecycles. Therefore, in LTE systems, NR systems, and future communication systems, it is necessary to consider IoT devices with ultra-low power consumption, ultra-low complexity, and ultra-low cost that are not battery-powered.

[0003] In the related art, an IoT device without battery power supply has been proposed, called an Ambient-IoT (A-IoT) or a Passive-IoT (P-IoT). The electrical energy required for its operation comes from radio frequency signals or other forms of energy in the surrounding environment.

[0004] In the communication scenario of the ambient IoT, how A-IoT devices coexist with existing communication systems and how to achieve resource multiplexing between different A-IoT devices have become technical problems to be solved urgently. Summary of the Invention

[0005] Embodiments of this application provide a method and system for multiplexing an ambient IoT to at least solve the problem of resource multiplexing of ambient IoT devices in the related art.

[0006] According to an embodiment of this application, a method for multiplexing an ambient IoT is provided. The method includes: a first entity configuring or pre-configuring a communication method for an IoT device, where the communication method includes at least one of the following: a coexistence method in which the IoT device occupies resources, a multiplexing method for multiple IoT devices, and a duplex method for the IoT device.

[0007] According to another embodiment of the present application, a resource reuse system for the environmental Internet of Things is provided. The system includes: a first entity and Internet of Things devices. Among them, the first entity is used to configure or pre-configure a communication method for the Internet of Things devices. The communication method includes at least one of the following: a coexistence method in which the Internet of Things devices occupy resources, a multiplexing method for multiple Internet of Things devices, and a duplex method for the Internet of Things devices.

[0008] According to still another embodiment of the present application, a computer-readable storage medium is further provided. A computer program is stored in the storage medium. When the computer program is run by a processor, it executes the steps in any one of the above method embodiments.

[0009] According to still another embodiment of the present application, an electronic device is further provided, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0010] Through the embodiments of the present application, the coexistence method, multiplexing method, and duplex method of A-IoT devices in the environmental Internet of Things can be communicatively configured to at least solve the problem of resource reuse of environmental Internet of Things devices in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a flowchart of the multiplexing method for the environmental Internet of Things according to the embodiment of the present application;

[0012] Figure 2 is a schematic diagram of configuring or pre-configuring a communication method according to an embodiment of the present application;

[0013] Figure 3 is a structural block diagram of the resource reuse system for the environmental Internet of Things according to the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The embodiments of the present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0015] It should be noted that the terms "first", "second", etc. in the specification, claims, and drawings of the present application are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence.

[0016] The embodiments of this application are applied to IoT services and implemented in LTE systems and NR systems. Exemplarily, typical IoT services in LTE systems include Narrow Band-Internet of Things (NB-IoT), Machine Type Communication (MTC), and enhanced Machine Type Communication (eMTC); typical IoT services in NR systems include Reduced Capability (RedCap) and enhanced Reduced Capability (eRedCap).

[0017] The embodiments of this application can be widely applied to various commercial scenarios, including but not limited to warehousing, logistics, supply chain, smart home, environmental monitoring, intelligent agriculture and animal husbandry, item finding, shopping malls, venue guides, modification of medical device status, activation and deactivation of devices, and elderly care, etc.

[0018] In an embodiment of this application, a method for multiplexing an environmental Internet of Things is provided. Figure 1 It is a flowchart of the method for multiplexing an environmental Internet of Things in the embodiments of this application, as Figure 1 shown. The process includes the following steps:

[0019] Step S1, a first entity configures or pre-configures a communication method for an Internet of Things device.

[0020] In this embodiment, the communication method includes at least one of the following: a coexistence method in which the Internet of Things device occupies resources, a multiplexing method for multiple Internet of Things devices, and a duplex method for the Internet of Things device.

[0021] Through the embodiments of this application, the problem of resource multiplexing of environmental Internet of Things devices in related technologies can be solved.

[0022] In some embodiments, the first entity includes at least one of the following: a network node, a relay node, an auxiliary node, a terminal node, a Radio Resource Control (RRC) layer, a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. Among them, the network node, the relay node, the auxiliary node, and the terminal node are physical entities, and the RRC layer, the RLC layer, the MAC layer, and the PHY layer are logical entities.

[0023] In an exemplary embodiment, the network node may include a base station. The relay node includes Integrated Access and Backhaul (IAB), a repeater, and a terminal node with relay function. The assisting node may include IAB, a repeater, and a terminal node with relay function. The terminal node may include a User Equipment (UE). The Internet of Things device may be an A-IoT device.

[0024] In some embodiments, the first entity in step S1 and the Internet of Things device may communicate directly or indirectly. Exemplarily, the A-IoT network may be divided into the following four types: The first type of topology is that the network node communicates directly with the A-IoT device; the second type of topology is that there is a relay node between the network node and the A-IoT device; the third type of topology is that there is an assisting node between the network node and the A-IoT device, and the assisting node may assist the downlink communication or uplink communication of the A-IoT device; the fourth type of topology is that the terminal node communicates directly with the A-IoT device.

[0025] In some embodiments, the first entity may act as a reader, and the Internet of Things device may act as a tag, such as a Radio Frequency Identification (RFID) tag.

[0026] In some embodiments, step S1 may include: step S11, the first entity configures or pre-configures the coexistence mode of the resources occupied by the Internet of Things device.

[0027] In some embodiments, the coexistence mode includes at least one of the following: out-of-band resources of an Orthogonal Frequency Division Multiplexing (OFDM) symbol; in-band resources of the OFDM symbol; guard band resources of the OFDM symbol.

[0028] In some embodiments, the signal transmission mode of the first entity includes at least one of the following:

[0029] Carrier signal transmission, wherein the carrier signal transmission includes transmitting through an unmodulated radio frequency signal;

[0030] OFDM transmission, wherein the OFDM transmission includes transmitting after OFDM modulation.

[0031] In some embodiments, the signal reception mode of the first entity includes at least one of the following:

[0032] Backscatter reception, wherein the backscatter reception includes: envelope detection, frequency detection, or phase detection;

[0033] Filtered reception, wherein the filtered reception includes: performing the envelope detection after filtering, performing the frequency detection after filtering, or performing the phase detection after filtering;

[0034] OFDM reception, wherein the OFDM reception includes performing OFDM demodulation after reception.

[0035] In some embodiments, the signal transmission modes of the Internet of Things device include at least one of the following:

[0036] Backscatter, wherein the backscatter includes modulating and reflecting the received carrier signal;

[0037] OFDM transmission, wherein the OFDM transmission includes transmitting after OFDM modulation.

[0038] In some embodiments, the signal reception modes of the Internet of Things device include at least one of the following:

[0039] Coupled reception, wherein the coupled reception includes: receiving a carrier signal through electromagnetic coupling, inductive coupling, capacitive coupling, resistive coupling, magnetic resonance coupling, or antenna coupling;

[0040] Filtered reception, wherein the filtered reception includes receiving the carrier signal through the electromagnetic coupling, the inductive coupling, the capacitive coupling, the resistive coupling, the magnetic resonance coupling, or the antenna coupling after filtering;

[0041] OFDM reception, wherein the OFDM reception includes performing OFDM demodulation after reception.

[0042] In the embodiments of the present application, it mainly relates to the coexistence of the communication resources occupied by the first entity and the communication resources occupied by the Internet of Things device. Therefore, there is a certain correspondence between the signal transmission of the first entity and the signal reception of the Internet of Things device. Similarly, there is also a certain correspondence between the signal reception of the first entity and the signal transmission of the Internet of Things device.

[0043] Through the embodiments of the present application, resource coexistence between the Internet of Things device and other types of devices (such as the first entity) can be achieved in the environmental Internet of Things, thereby solving the problem of resource reuse of environmental Internet of Things devices in the related art.

[0044] In some embodiments, step S1 may further include: step S12, the first entity configures or pre-configures the multiplexing modes of multiple Internet of Things devices for the Internet of Things device.

[0045] In some embodiments, the multiplexing method includes at least one of the following: Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Code Division Multiple Access (CDMA), Space Division Multiple Access (SDMA), and Non-orthogonal Multiple Access (NOMA).

[0046] In some embodiments, the multiplexing method is configured or pre-configured according to the scenario, and the multiplexing methods corresponding to different scenarios are different.

[0047] Exemplarily, scenario 1 that is not sensitive to latency can be configured to use TDMA; scenario 2 that is sensitive to latency can be configured to use FDMA; scenario 3 with the number of device terminals greater than a certain threshold (i.e., a huge number of terminals) can be configured to use NOMA.

[0048] In some embodiments, the multiplexing method is configured or pre-configured according to the resources, and the multiplexing methods corresponding to different resources are different.

[0049] Exemplarily, resource 1 can use TDMA, resource 2 can use FDMA, resource 3 can use CDMA, resource 4 can use SDMA, and resource 5 can use NOMA.

[0050] In this embodiment, different resources refer to resources in multiple dimensions such as time domain resources, frequency domain resources, code domain resources, space domain resources, or power domain resources that do not completely overlap.

[0051] In some embodiments, the multiplexing method is configured or pre-configured according to the Internet of Things devices, and the multiplexing methods corresponding to different Internet of Things devices are different.

[0052] Exemplarily, device 1 can use TDMA, device 2 can use FDMA, device 3 can use CDMA, device 4 can use SDMA, and device 5 can use NOMA.

[0053] In this embodiment, the multiplexing of multiple Internet of Things devices based on Frequency Division Multiple Access (FDMA) may specifically include at least one of the following: frequency modulation backscattering between A-IoT devices, frequency hopping backscattering between A-IoT devices, and multiplexing using different frequency resources between A-IoT devices. Further, frequency modulation or frequency hopping includes adjusting the carrier signal frequency during backscattering or backscattering reception, where the frequencies corresponding to frequency modulation and frequency hopping can be configured or pre-configured.

[0054] In this embodiment, the multiplexing of multiple Internet of Things devices based on Code Division Multiple Access (CDMA) may specifically include: multiplexing using device identifiers or orthogonal codes between A-IoT devices, where the device identifiers and orthogonal codes can be configured or pre-configured.

[0055] In this embodiment, the multiplexing of multiple Internet of Things devices based on Space Division Multiple Access (SDMA) may specifically include: multiplexing using digital beams and / or analog beams between A-IoT devices, where the digital beams and analog beams can be configured or pre-configured.

[0056] In an exemplary embodiment, if the multiplexing method for A-IoT devices is not configured or pre-configured, the multiplexing method may default to TDMA.

[0057] In some embodiments, the first entity may be a terminal type reader / writer, and in this case, the multiplexing method for the reader / writer can also be configured or pre-configured. The multiplexing methods for the resources corresponding to multiple reader / writers include at least one of the following: network node configuration of resources, resource sensing, and head node configuration of resources.

[0058] In an exemplary embodiment, assuming there are 3 reader / writers in an environmental Internet of Things system, the resource multiplexing of the first entity can be achieved in any of the following ways:

[0059] Method 1: The network node configures the resources used by Reader / Writer 1, Reader / Writer 2, and Reader / Writer 3.

[0060] Method 2: Reader / Writer 1, Reader / Writer 2, and Reader / Writer 3 sense the resources, and if the resources are idle, they use the resources.

[0061] Method 3: Take any reader / writer, such as Reader / Writer 1, as the head node. The network node configures the resources used by the head node, and the head node configures the resources used by Reader / Writer 2 and Reader / Writer 3.

[0062] Method 4: Take any reader / writer, such as Reader / Writer 1, as the head node. The head node senses the resources, and if the resources are idle, it configures the resources used by Reader / Writer 2 and Reader / Writer 3.

[0063] In an exemplary embodiment, if there is no configuration or pre - configuration for the multiplexing mode of the reader - writer, the multiplexing mode can default to resource - aware.

[0064] Through the embodiments of the present application, resource multiplexing of multiple Internet of Things devices can be achieved in the environmental Internet of Things, thereby solving the problem of resource multiplexing of environmental Internet of Things devices in the related art.

[0065] In some embodiments, step S1 may further include: step S13, the first entity configures or pre - configures the duplex mode of the Internet of Things device for the Internet of Things device.

[0066] In some embodiments, the duplex mode includes at least one of the following: full - duplex, sub - band full - duplex, half - duplex.

[0067] In an exemplary embodiment, the full - duplex of the Internet of Things device includes at least one of the following: immediately reflecting the signal after receiving the signal; receiving the signal and charging before the energy reaches the preset threshold, and immediately reflecting the signal after the energy reaches the preset threshold; immediately transmitting the signal after receiving the signal; receiving the signal and charging before the energy reaches the preset threshold, and immediately transmitting the signal after the energy reaches the preset threshold.

[0068] In an exemplary embodiment, the sub - band full - duplex of the Internet of Things device includes: the receiving antenna and the transmitting antenna of the Internet of Things device are independent of each other, and the Internet of Things device performs mutual conversion between receiving and transmitting in a pre - configured guard band.

[0069] In an exemplary embodiment, the half - duplex of the Internet of Things device includes: the Internet of Things device performs receiving and transmitting in a time - division multiplexing manner, and the Internet of Things device performs mutual conversion between receiving and transmitting in a pre - configured guard interval.

[0070] In some embodiments, when the Internet of Things device is in the full - duplex mode, the first entity is in the full - duplex mode. Exemplarily, the first entity can use independent receiving and transmitting antennas to achieve full - duplex.

[0071] In some embodiments, when the Internet of Things device is in the half - duplex mode, the first entity is in the half - duplex mode or the sub - band full - duplex mode.

[0072] Exemplarily, the first entity can use independent receiving and transmitting antennas and perform transceiver conversion or transmitter - receiver conversion in a pre - configured guard interval to achieve half - duplex.

[0073] In some embodiments, when the Internet of Things device is in the sub - band full - duplex mode, the first entity is in the sub - band full - duplex mode.

[0074] Exemplarily, the first entity may use independent receiving and transmitting antennas and perform transceiver conversion or transmit-receive conversion in a preconfigured guard band to achieve sub-band full duplex.

[0075] In an exemplary embodiment, the duplex mode of the Internet of Things device and the first entity may default to half duplex.

[0076] Through the embodiments of the present application, the duplex mode of receiving and transmitting of the Internet of Things device in the environmental Internet of Things can be configured, thereby solving the problem of resource reuse of the environmental Internet of Things device in the related art.

[0077] Figure 2 It is a schematic diagram of configuring or preconfiguring a communication mode according to an embodiment of the present application. As Figure 2 shown, the communication modes include: a coexistence mode, a multiplexing mode, and a duplex mode. The first entity may configure or preconfigure the communication mode of the Internet of Things device.

[0078] Through the embodiments of the present application, the configuration problems of the coexistence mode, the multiplexing mode, and the duplex mode in the related art can be solved.

[0079] In another embodiment of the present application, a multiplexing system for an environmental Internet of Things is further provided.

[0080] Figure 3 It is a structural block diagram of a multiplexing system for an environmental Internet of Things according to an embodiment of the present application. As Figure 3 shown, the system includes:

[0081] A first entity 10 and an Internet of Things device 20.

[0082] In this embodiment, the first entity 10 is configured to configure or preconfigure a communication mode for the Internet of Things device, where the communication mode includes at least one of the following: a coexistence mode in which the Internet of Things device occupies resources, a multiplexing mode of multiple Internet of Things devices, and a duplex mode of the Internet of Things device.

[0083] , in some embodiments, the first entity includes at least one of the following: a network node, a relay node, an auxiliary node, a terminal node, a Radio Resource Control (RRC) layer, a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. Among them, the network node, the relay node, the auxiliary node, and the terminal node are physical entities, and the RRC layer, the RLC layer, the MAC layer, and the PHY layer are logical entities.

[0084] In an exemplary embodiment, the network node may include a base station. The relay node includes an Integrated Access and Backhaul (IAB), a repeater, and a terminal node with a relay function. The auxiliary node may include an IAB, a repeater, and a terminal node with a relay function. The terminal node may include a User Equipment (UE).

[0085] In some embodiments, the Internet of Things (IoT) device may be an A-IoT device.

[0086] In some embodiments, the first entity and the IoT device may communicate directly or indirectly. Exemplarily, the A-IoT network can be divided into the following four types: The first type of topology is that the network node communicates directly with the A-IoT device; the second type of topology is that there is a relay node between the network node and the A-IoT device; the third type of topology is that there is an auxiliary node between the network node and the A-IoT device, and the auxiliary node can assist the downlink communication or uplink communication of the A-IoT device; the fourth type of topology is that the terminal node communicates directly with the A-IoT device.

[0087] In some embodiments, the first entity may act as a reader, and the IoT device may act as a tag, such as a Radio Frequency Identification (RFID) tag.

[0088] In some embodiments, the first entity is further configured to configure or pre-configure the coexistence mode of the resources occupied by the IoT device. The coexistence mode includes at least one of the following: out-of-band resources of an Orthogonal Frequency Division Multiplexing (OFDM) symbol; in-band resources of the OFDM symbol; guard band resources of the OFDM symbol.

[0089] In some embodiments, the first entity is further configured to transmit an unmodulated radio frequency signal; or transmit an OFDM symbol after OFDM modulation.

[0090] In some embodiments, the first entity is further configured to perform backscatter reception through envelope detection, frequency detection, or phase detection; or perform filtered reception through the envelope detection, the frequency detection, or the phase detection after filtering; or receive an OFDM symbol and perform OFDM reception through OFDM demodulation.

[0091] In some embodiments, the Internet of Things device is further configured for backscattering, that is, modulating and reflecting the received carrier signal; or transmitting OFDM symbols after OFDM modulation.

[0092] In some embodiments, the Internet of Things device is further configured for coupled reception, where the coupled reception includes: receiving a carrier signal through electromagnetic coupling, inductive coupling, capacitive coupling, resistive coupling, magnetic resonance coupling, or antenna coupling.

[0093] In some embodiments, the Internet of Things device is further configured for filtered reception, where the filtered reception includes receiving the carrier signal through the electromagnetic coupling, the inductive coupling, the capacitive coupling, the resistive coupling, the magnetic resonance coupling, or the antenna coupling after filtering;

[0094] In some embodiments, the Internet of Things device is further configured for receiving OFDM symbols and performing OFDM reception through OFDM demodulation.

[0095] In some embodiments, a first entity is further configured to configure or pre-configure a multiplexing mode for multiple Internet of Things devices, where the multiplexing mode includes at least one of the following: time division multiple access (TDMA), frequency division multiple access (FDMA), code division multiple access (CDMA), space division multiple access (SDMA), and non-orthogonal multiple access (NOMA).

[0096] In some embodiments, the first entity is further configured to configure or pre-configure the multiplexing mode according to a scenario, and the multiplexing modes corresponding to different scenarios are different.

[0097] Exemplarily, the first entity may configure scenario 1 that is not sensitive to latency to use TDMA; configure scenario 2 that is sensitive to latency to use FDMA; configure scenario 3 where the number of device terminals is greater than a certain threshold (i.e., a huge number of terminals) to use NOMA.

[0098] In some embodiments, the first entity is further configured to configure or pre-configure the multiplexing mode according to resources, and the multiplexing modes corresponding to different resources are different.

[0099] Exemplarily, resource 1 may use TDMA, resource 2 may use FDMA, resource 3 may use CDMA, resource 4 may use SDMA, and resource 5 may use NOMA.

[0100] In this embodiment, different resources refer to resources in multiple dimensions such as time domain resources, frequency domain resources, code domain resources, space domain resources, or power domain resources that do not completely overlap.

[0101] In some embodiments, the first entity is further configured or pre-configured to configure the multiplexing mode according to the Internet of Things devices, and the multiplexing modes corresponding to different Internet of Things devices are different.

[0102] Exemplarily, Device 1 can use TDMA, Device 2 can use FDMA, Device 3 can use CDMA, Device 4 can use SDMA, and Device 5 can use NOMA.

[0103] In some embodiments, the first entity is further configured or pre-configured to configure the duplex mode of the Internet of Things device for the Internet of Things device, where the duplex mode includes at least one of the following: full duplex, sub-band full duplex, and half duplex.

[0104] Through the embodiments of the present application, the resource multiplexing problems of Internet of Things devices in different dimensions such as different types of devices, multiple same-type devices, or single-device transceiver in the communication scenario of the environmental Internet of Things can be solved. With the evolution of wireless mobile communication systems, extensive and in-depth research on the environmental Internet of Things can be achieved. The coexistence mode, multiplexing mode, and duplex mode in the communication scenario of the environmental Internet of Things are essential technologies for the environmental Internet of Things, and the commercial prospects are relatively broad.

[0105] The embodiments of the present application further provide a computer-readable storage medium, in which a computer program is stored, and when the computer program is run by a processor, it executes the steps in any one of the above method embodiments.

[0106] In an exemplary embodiment, the above computer-readable storage medium may include, but is not limited to: USB flash drive, read-only memory (ROM for short), random access memory (RAM for short), mobile hard disk, magnetic disk, or optical disc, etc., various media that can store computer programs.

[0107] The embodiments of the present application further provide an electronic device, including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0108] In an exemplary embodiment, the above electronic device may further include a transmission device and an input / output device, where the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0109] The specific examples in this embodiment may refer to the examples described in the above embodiments and exemplary embodiments, and will not be repeated here.

[0110] Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present application can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. They can be implemented by program codes executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order from here, or they can be separately made into individual integrated circuit modules, or multiple modules or steps among them can be made into a single integrated circuit module for implementation. In this way, the present application is not limited to any specific combination of hardware and software.

[0111] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multiplexing method for the Internet of Things in the environment, characterized in that, The method includes: A first entity configures or pre-configures a communication mode for an Internet of Things (IoT) device, where the communication mode includes at least one of the following: a coexistence mode in which the IoT device occupies resources, a multiplexing mode of multiple IoT devices, and a duplex mode of the IoT device.

2. The method according to claim 1, wherein The first entity includes at least one of the following: a network node, a relay node, an auxiliary node, a terminal node, a radio resource control layer, a radio link control layer, a media access control layer, and a physical layer.

3. The method according to claim 1, characterized in that, The coexistence mode includes at least one of the following: Out-of-band resources of an orthogonal frequency division multiplexing (OFDM) symbol; In-band resources of the OFDM symbol; Guard band resources of the OFDM symbol.

4. The method according to claim 3, wherein The signal transmission mode of the first entity includes at least one of the following: Carrier signal transmission, where the carrier signal transmission includes transmission through an unmodulated radio frequency signal; OFDM transmission, where the OFDM transmission includes transmission after OFDM modulation.

5. The method according to claim 3, characterized in that, The signal reception mode of the first entity includes at least one of the following: Backscatter reception, where the backscatter reception includes: envelope detection, frequency detection, or phase detection; Filtering reception, where the filtering reception includes: performing the envelope detection after filtering, performing the frequency detection after filtering, or performing the phase detection after filtering; OFDM reception, where the OFDM reception includes performing OFDM demodulation after reception.

6. The method according to claim 3, wherein The signal transmission mode of the IoT device includes at least one of the following: Backscatter, where the backscatter includes modulating and reflecting a received carrier signal; OFDM transmission, where the OFDM transmission includes transmission after OFDM modulation.

7. The method according to claim 3, characterized in that The signal reception mode of the IoT device includes at least one of the following: Coupling reception, where the coupling reception includes: receiving a carrier signal through electromagnetic coupling, inductive coupling, capacitive coupling, resistive coupling, magnetic resonance coupling, or antenna coupling; Filtering reception, where the filtering reception includes filtering and then receiving the carrier signal through the electromagnetic coupling, the inductive coupling, the capacitive coupling, the resistive coupling, the magnetic resonance coupling, or the antenna coupling; OFDM reception, where the OFDM reception includes performing OFDM demodulation after reception.

8. The method according to claim 1, wherein The multiplexing mode includes at least one of the following: Time division multiple access (TDMA), frequency division multiple access (FDMA), code division multiple access (CDMA), space division multiple access (SDMA), non-orthogonal multiple access (NOMA).

9. The method according to claim 8, wherein The multiplexing mode is configured or pre-configured according to a scenario, and the multiplexing modes corresponding to different scenarios are different.

10. The method according to claim 8, wherein The multiplexing mode is configured or pre-configured according to resources, and the multiplexing modes corresponding to different resources are different.

11. The method according to claim 8, wherein The multiplexing mode is configured or pre-configured according to IoT devices, and the multiplexing modes corresponding to different IoT devices are different.

12. The method according to claim 1, wherein The duplex mode includes at least one of the following: Full duplex, sub-band full duplex, half duplex.

13. The method according to claim 12, wherein The full duplex includes at least one of the following: Reflecting a signal immediately after receiving the signal; Before the energy reaches the preset threshold, receive signals and charge the energy. After the energy reaches the preset threshold, immediately reflect the signal after receiving the signal; Immediately transmit the signal after receiving the signal; Before the energy reaches the preset threshold, receive signals and charge the energy. After the energy reaches the preset threshold, immediately transmit the signal after receiving the signal.

14. The method according to claim 12, wherein The sub-band full-duplex includes: The receiving antenna and the transmitting antenna of the Internet of Things device are independent of each other, and the Internet of Things device performs mutual conversion between receiving and transmitting in a pre-configured guard band.

15. The method according to claim 12, wherein The half-duplex includes: The Internet of Things device receives and transmits in a time-division multiplexing manner, and the Internet of Things device performs mutual conversion between receiving and transmitting in a pre-configured guard interval.

16. The method according to claim 12, wherein When the Internet of Things device is the full-duplex, the first entity is the full-duplex.

17. The method according to claim 12, wherein When the Internet of Things device is the half-duplex, the first entity is the half-duplex or the sub-band full-duplex.

18. The method according to claim 12, wherein When the Internet of Things device is the sub-band full-duplex, the first entity is the sub-band full-duplex.

19. A resource reuse system for the Internet of Things in the environment, characterized in that, The system includes: a first entity and an Internet of Things device, wherein the first entity is used to configure or pre-configure a communication mode for the Internet of Things device, and the communication mode includes at least one of the following: a coexistence mode in which the Internet of Things device occupies resources, a multiplexing mode of multiple Internet of Things devices, and a duplex mode of the Internet of Things device.

20. A computer-readable storage medium, characterized in that, A computer program is stored in the storage medium, wherein the computer program, when run by a processor, executes the method described in any one of claims 1 to 18.

21. An electronic device, comprising a memory and a processor, characterized in that, A computer program is stored in the memory, and the processor is configured to run the computer program to execute the method described in any one of claims 1 to 18.

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