Ambient internet of things multiplexing method and system

Abstract

Embodiments of the present disclosure provide an Ambient Internet of Things multiplexing method and system. The method comprises: a first entity configures or pre-configures a communication mode for an Internet of Things device, the communication mode comprising at least one of the following: a co-existence mode of a resource occupied by the Internet of Things device, a multiplexing mode of multiple Internet of Things devices, and a duplex mode of the Internet of Things device.

Description

A reuse method and system for environmental Internet of Things

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on Chinese patent application CN202410073437.1, filed on January 17, 2024, entitled “A Reuse Method and System for Environmental Internet of Things,” and claims the priority of the patent application, all of the contents disclosed therein are incorporated into this disclosure by reference. Technical Field

[0003] The present disclosure relates to the field of communications, and in particular to a multiplexing method and system for an environmental Internet of Things. Background Art

[0004] With the continuous advancement of radio technology, a large number of radio services have emerged. In addition to cellular services between base stations and terminals, Long Term Evolution (LTE) systems and New Radio (NR) systems also include Internet of Things (IoT) services, that is, communication between base stations and IoT devices. IoT devices are usually powered by traditional batteries with limited lifespans. In some extreme environmental conditions, maintaining the continuous operation of IoT devices and replacing batteries can be very challenging. On the other hand, the increasing number of large-scale commercial use cases requires IoT devices with very small sizes and longer life cycles. Therefore, ultra-low power consumption, ultra-low complexity, and ultra-low cost IoT devices that are not battery-powered need to be considered in LTE systems, NR systems, and future communication systems.

[0005] Related technologies have proposed a type of IoT device that is not battery-powered, called Ambient-IoT (A-IoT) or Passive-IoT (P-IoT). The power required for its operation comes from radio frequency signals or other forms of energy in the surrounding environment.

[0006] In the ambient IoT communication scenario, how A-IoT devices can coexist with existing communication systems and how to achieve resource reuse between different A-IoT devices have become technical issues that need to be solved urgently.

[0007] Summary of the Invention

[0008] The embodiments of the present disclosure provide a method and system for reusing an environmental Internet of Things (IoT) to at least solve the resource reuse problem of environmental Internet of Things devices in related technologies.

[0009] According to one embodiment of the present disclosure, a method for multiplexing an environmental Internet of Things is provided, the method comprising: a first entity configuring or pre-configuring a communication mode to an Internet of Things device, wherein the communication mode comprises at least one of the following: a coexistence mode in which Internet of Things devices occupy resources, a multiplexing mode of multiple Internet of Things devices, and a duplex mode of Internet of Things devices.

[0010] According to another embodiment of the present disclosure, a resource reuse system for an environmental Internet of Things is provided, the system comprising: a first entity and an Internet of Things device, wherein the first entity is used to configure or pre-configure a communication mode to the Internet of Things device, wherein the communication mode comprises at least one of the following: a coexistence mode in which Internet of Things devices occupy resources, a multiplexing mode of multiple Internet of Things devices, and a duplex mode of Internet of Things devices.

[0011] According to another embodiment of the present disclosure, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above method embodiments are executed.

[0012] According to another embodiment of the present disclosure, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a flow chart of a reuse method of an environmental Internet of Things according to an embodiment of the present disclosure;

[0014] FIG2 is a schematic diagram of configuring or pre-configuring a communication method according to an embodiment of the present disclosure;

[0015] FIG3 is a structural block diagram of a reuse system of an environmental Internet of Things according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0016] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings and in conjunction with embodiments.

[0017] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0018] The embodiments of the present disclosure are applied to IoT services and implemented in LTE and NR systems. For example, typical IoT services in LTE systems include Narrow Band-Internet of Things (NB-IoT), Machine Type Communication (MTC), and Enhanced Machine Type Communication (eMTC); while typical IoT services in NR systems include Reduced Capability (RedCap) and Enhanced Reduced Capability (eRedCap).

[0019] The embodiments of the present disclosure can be widely applied in various commercial scenarios, including but not limited to warehousing, logistics, supply chain, smart home, environmental monitoring, smart agriculture and animal husbandry, finding items, shopping malls, venue guides, medical device status modification, device activation and deactivation, and elderly care.

[0020] In one embodiment of the present disclosure, a method for reusing an environmental Internet of Things is provided. FIG1 is a flow chart of the method for reusing an environmental Internet of Things according to an embodiment of the present disclosure. As shown in FIG1 , the flow chart includes the following steps:

[0021] Step S1: A first entity configures or pre-configures a communication method for an IoT device.

[0022] In this embodiment, the communication mode includes at least one of the following: a coexistence mode in which IoT devices occupy resources, a multiplexing mode of a plurality of IoT devices, and a duplex mode of the IoT devices.

[0023] Through the embodiments of the present disclosure, the resource reuse problem of environmental Internet of Things devices in related technologies can be solved.

[0024] 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. The network node, relay node, auxiliary node, and terminal node are physical entities, and the RRC layer, RLC layer, MAC layer, and PHY layer are logical entities.

[0025] In an exemplary embodiment, a network node may include a base station. A relay node may include an integrated access and backhaul (IAB), a repeater, or a terminal node with relay functionality. An auxiliary node may include an IAB, a repeater, or a terminal node with relay functionality. A terminal node may include a user equipment (UE). An IoT device may be an A-IoT device.

[0026] In some embodiments, the first entity in step S1 can communicate directly or indirectly with the IoT device. For example, A-IoT networks can be categorized into the following four types: A topology type 1 involves direct communication between network nodes and A-IoT devices; a topology type 2 involves the presence of relay nodes between network nodes and A-IoT devices; a topology type 3 involves the presence of auxiliary nodes between network nodes and A-IoT devices, which can assist in downlink or uplink communication between A-IoT devices; and a topology type 4 involves direct communication between terminal nodes and A-IoT devices.

[0027] In some embodiments, the first entity may serve as a reader / writer, and the IoT device may serve as a tag, such as a Radio Frequency Identification (RFID) tag.

[0028] In some embodiments, step S1 may include: step S11, the first entity configures or pre-configures the coexistence mode of the IoT device occupying resources.

[0029] In some embodiments, the coexistence mode includes at least one of the following: out-of-band resources of Orthogonal Frequency Division Multiplexing (OFDM) symbols; in-band resources of the OFDM symbols; and guard band resources of the OFDM symbols.

[0030] In some embodiments, the signal transmission method of the first entity includes at least one of the following:

[0031] Carrier signal transmission, wherein the carrier signal transmission comprises transmission via an unmodulated radio frequency signal;

[0032] OFDM transmission, wherein the OFDM transmission includes transmission after OFDM modulation.

[0033] In some embodiments, the signal receiving manner of the first entity includes at least one of the following:

[0034] Backscatter reception, wherein the backscatter reception includes: envelope detection, frequency detection or phase detection;

[0035] Filtering and receiving, wherein the filtering and receiving comprises: performing the envelope detection after filtering, performing the frequency detection after filtering, or performing the phase detection after filtering;

[0036] OFDM reception, wherein the OFDM reception includes performing OFDM demodulation after reception.

[0037] In some embodiments, the signal transmission mode of the IoT device includes at least one of the following:

[0038] Backscattering, wherein the backscattering includes modulating and reflecting a received carrier signal;

[0039] OFDM transmission, wherein the OFDM transmission includes transmission after OFDM modulation.

[0040] In some embodiments, the signal receiving method of the IoT device includes at least one of the following:

[0041] Coupling reception, wherein the coupling reception includes: receiving a carrier signal through electromagnetic coupling, inductive coupling, capacitive coupling, resistive coupling, magnetic resonance coupling or antenna coupling;

[0042] Filtering and receiving, wherein the filtering and receiving includes receiving the carrier signal after filtering through the electromagnetic coupling, the inductive coupling, the capacitive coupling, the resistive coupling, the magnetic resonance coupling, or the antenna coupling;

[0043] OFDM reception, wherein the OFDM reception includes performing OFDM demodulation after reception.

[0044] The embodiments of the present disclosure mainly involve the coexistence of 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 a certain correspondence between the signal reception of the first entity and the signal transmission of the Internet of Things device.

[0045] Through the embodiments of the present disclosure, resource coexistence of IoT devices and other types of devices (such as the first entity) can be achieved in the environmental IoT, thereby solving the resource reuse problem of environmental IoT devices in related technologies.

[0046] In some embodiments, step S1 may further include: step S12, the first entity configures or pre-configures a multiplexing mode of multiple IoT devices to the IoT device.

[0047] 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).

[0048] In some embodiments, the multiplexing mode is configured or pre-configured according to scenarios, and different scenarios correspond to different multiplexing modes.

[0049] For example, scenario 1, which is not sensitive to delay, can be configured to use TDMA; scenario 2, which is sensitive to delay, can be configured to use FDMA; and scenario 3, where the number of device terminals is greater than a certain threshold (i.e., a large number of terminals), can be configured to use NOMA.

[0050] In some embodiments, the multiplexing mode is configured or pre-configured according to resources, and different resources correspond to different multiplexing modes.

[0051] For example, 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.

[0052] In this embodiment, the different resources refer to resources that do not completely overlap in multiple dimensions, such as time domain resources, frequency domain resources, code domain resources, spatial domain resources, or power domain resources.

[0053] In some embodiments, the multiplexing method is configured or pre-configured according to the Internet of Things device, and the multiplexing methods corresponding to different Internet of Things devices are different.

[0054] For example, device 1 may use TDMA, device 2 may use FDMA, device 3 may use CDMA, device 4 may use SDMA, and device 5 may use NOMA.

[0055] In this embodiment, the frequency division multiple access (FDMA)-based multiplexing of multiple IoT devices may specifically include at least one of the following: frequency modulated backscattering between A-IoT devices, frequency hopping backscattering between A-IoT devices, or multiplexing between A-IoT devices using different frequency resources. Furthermore, frequency modulation or frequency hopping includes adjusting the carrier signal frequency during backscattering or backscatter reception, wherein the frequencies corresponding to the frequency modulation or frequency hopping may be configurable or preconfigured.

[0056] In this embodiment, multiple IoT devices are multiplexed based on code division multiple access (CDMA) and may specifically include: A-IoT devices are multiplexed using device identifiers or orthogonal codes, where the device identifiers and orthogonal codes may be configured or pre-configured.

[0057] In this embodiment, multiple IoT devices are multiplexed based on spatial division multiple access (SDMA) and may specifically include: A-IoT devices are multiplexed using digital beams and / or analog beams, wherein the digital beams and analog beams may be configured or pre-configured.

[0058] In an exemplary embodiment, if the multiplexing mode of the A-IoT device is not configured or pre-configured, the multiplexing mode may default to TDMA.

[0059] In some embodiments, the first entity may be a terminal reader / writer, and a multiplexing method of the reader / writer may be configured or pre-configured. The multiplexing method of resources corresponding to the multiple readers / writers may include at least one of the following: network node configuration of resources, resource sensing, and head node configuration of resources.

[0060] In an exemplary embodiment, assuming that there are three readers in the environmental Internet of Things system, resource reuse of the first entity can be achieved by any of the following methods:

[0061] Method 1: The network node configures the resources used by reader 1, reader 2, and reader 3;

[0062] Method 2: Reader 1, Reader 2, and Reader 3 sense resources and use them if they are idle.

[0063] Method 3: Any reader, such as reader 1, is used 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 2 and reader 3.

[0064] Method 4: Any reader, such as reader 1, is used as the head node. The head node senses the resources and configures the resources used by reader 2 and reader 3 if the resources are idle.

[0065] In an exemplary embodiment, if the multiplexing mode of the reader is not configured or pre-configured, the multiplexing mode may default to resource-aware.

[0066] Through the embodiments of the present disclosure, resource reuse of multiple IoT devices can be achieved in the environmental IoT, thereby solving the resource reuse problem of environmental IoT devices in related technologies.

[0067] In some embodiments, step S1 may further include: step S13, the first entity configures or pre-configures the duplex mode of the IoT device to the IoT device.

[0068] In some embodiments, the duplex mode includes at least one of the following: full duplex, sub-band full duplex, and half duplex.

[0069] In an exemplary embodiment, the full-duplex of the Internet of Things device includes at least one of the following: reflecting the signal immediately after receiving the signal; receiving the signal and charging the energy before the energy reaches a preset threshold, and reflecting the signal immediately after receiving the signal after the energy reaches the preset threshold; transmitting the signal immediately after receiving the signal; receiving the signal and charging the energy before the energy reaches the preset threshold, and transmitting the signal immediately after receiving the signal after the energy reaches the preset threshold.

[0070] In an exemplary embodiment, the sub-band full-duplex of the IoT device includes: the receiving antenna and the transmitting antenna of the IoT device are independent of each other, and the IoT device performs mutual conversion between receiving and transmitting in a pre-configured guard band.

[0071] In an exemplary embodiment, the half-duplex mode of the IoT device includes: the IoT device receives and sends in a time division multiplexing manner, and the IoT device switches between receiving and sending in a pre-configured protection interval.

[0072] In some embodiments, when the IoT device is full-duplex, the first entity is full-duplex. Exemplarily, the first entity may use independent receiving antennas and transmitting antennas to achieve full-duplex.

[0073] In some embodiments, when the IoT device is half-duplex, the first entity is half-duplex or sub-band full-duplex.

[0074] Exemplarily, the first entity may use an independent receiving antenna and transmitting antenna, and perform a transmit-receive conversion or a transmit-receive conversion in a preconfigured guard interval to achieve half-duplex.

[0075] In some embodiments, when the Internet of Things device is the sub-band full-duplex, the first entity is the sub-band full-duplex.

[0076] Exemplarily, the first entity may use an independent receiving antenna and transmitting antenna, and perform transmit-receive conversion or transmit-receive conversion in a pre-configured guard band to achieve sub-band full-duplex.

[0077] In an exemplary embodiment, the duplex mode of the IoT device and the first entity may be half-duplex by default.

[0078] Through the embodiments of the present disclosure, the duplex mode of receiving and sending of IoT devices can be configured in the environmental IoT, thereby solving the resource reuse problem of environmental IoT devices in related technologies.

[0079] FIG2 is a schematic diagram of configuring or pre-configuring a communication mode according to an embodiment of the present disclosure. As shown in FIG2 , the communication modes include: coexistence mode, multiplexing mode, and duplex mode. The first entity can configure or pre-configure the communication mode of the IoT device.

[0080] The embodiments of the present disclosure can solve the configuration problems of coexistence mode, multiplexing mode and duplex mode in related technologies.

[0081] In yet another embodiment of the present disclosure, a reuse system for an environmental Internet of Things is provided.

[0082] FIG3 is a structural block diagram of a reuse system of an environmental Internet of Things according to an embodiment of the present disclosure. As shown in FIG3 , the system includes:

[0083] A first entity 10 and an IoT device 20 .

[0084] In this embodiment, the first entity 10 is used to configure or pre-configure a communication mode for the IoT device, wherein the communication mode includes at least one of the following: a coexistence mode in which the IoT devices occupy resources, a multiplexing mode of multiple IoT devices, and a duplex mode of the IoT device.

[0085] 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. The network node, relay node, auxiliary node, and terminal node are physical entities, and the RRC layer, RLC layer, MAC layer, and PHY layer are logical entities.

[0086] In an exemplary embodiment, a network node may include a base station. A relay node may include an integrated access and backhaul (IAB), a repeater, or a terminal node with relay functionality. An auxiliary node may include an IAB, a repeater, or a terminal node with relay functionality. A terminal node may include a user equipment (UE).

[0087] In some embodiments, the IoT device may be an A-IoT device.

[0088] In some embodiments, the first entity and the IoT device can communicate directly or indirectly. For example, A-IoT networks can be categorized into the following four types: A topology type 1 is where network nodes communicate directly with A-IoT devices; a topology type 2 is where relay nodes exist between network nodes and A-IoT devices; a topology type 3 is where auxiliary nodes exist between network nodes and A-IoT devices, which can assist in downlink or uplink communication of A-IoT devices; and a topology type 4 is where terminal nodes communicate directly with A-IoT devices.

[0089] In some embodiments, the first entity may serve as a reader / writer, and the IoT device may serve as a tag, such as a Radio Frequency Identification (RFID) tag.

[0090] In some embodiments, the first entity is further configured to configure or pre-configure a coexistence mode for IoT devices to occupy resources. The coexistence mode includes at least one of the following: out-of-band resources of Orthogonal Frequency Division Multiplexing (OFDM) symbols; in-band resources of the OFDM symbols; and guard band resources of the OFDM symbols.

[0091] In some embodiments, the first entity is further configured to transmit an unmodulated radio frequency signal; or transmit an OFDM symbol after OFDM modulation.

[0092] In some embodiments, the first entity is further used 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 OFDM symbols and perform OFDM reception through OFDM demodulation.

[0093] In some embodiments, the IoT device is further configured to backscatter, that is, modulate and reflect a received carrier signal; or transmit an OFDM symbol after OFDM modulation.

[0094] In some embodiments, the IoT device is further used for 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.

[0095] In some embodiments, the IoT device is further configured to receive the carrier signal by filtering, wherein the receiving the carrier signal includes receiving the carrier signal by filtering through the electromagnetic coupling, the inductive coupling, the capacitive coupling, the resistive coupling, the magnetic resonance coupling, or the antenna coupling.

[0096] In some embodiments, the IoT device is further configured to receive OFDM symbols and perform OFDM reception through OFDM demodulation.

[0097] In some embodiments, the first entity is also used to configure or pre-configure a multiplexing mode of multiple IoT devices to the IoT device, 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, and non-orthogonal multiple access NOMA.

[0098] In some embodiments, the first entity is further configured or pre-configured according to scenarios, and different scenarios correspond to different multiplexing modes.

[0099] Exemplarily, the first entity may configure scenario 1, which is not sensitive to delay, to use TDMA; configure scenario 2, which is sensitive to delay, to use FDMA; and configure scenario 3, where the number of device terminals is greater than a certain threshold (i.e., a large number of terminals), to use NOMA.

[0100] In some embodiments, the first entity is further configured or pre-configured according to resources, and different resources correspond to different multiplexing modes.

[0101] For example, 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.

[0102] In this embodiment, the different resources refer to resources that do not completely overlap in multiple dimensions, such as time domain resources, frequency domain resources, code domain resources, spatial domain resources, or power domain resources.

[0103] In some embodiments, the first entity is further configured or preconfigured according to the multiplexing mode of the Internet of Things device, and different Internet of Things devices correspond to different multiplexing modes.

[0104] For example, device 1 may use TDMA, device 2 may use FDMA, device 3 may use CDMA, device 4 may use SDMA, and device 5 may use NOMA.

[0105] In some embodiments, the first entity is further used to configure or pre-configure a duplex mode of the IoT device to the IoT device, wherein the duplex mode includes at least one of the following: full duplex, sub-band full duplex, and half duplex.

[0106] The disclosed embodiments address resource reuse issues across different dimensions of IoT devices in ambient IoT communication scenarios, including transmission and reception across different types of devices, multiple devices of the same type, or a single device. The evolution of wireless mobile communication systems is enabling extensive and in-depth research into the ambient IoT. Coexistence, multiplexing, and duplexing in ambient IoT communication scenarios are essential technologies for the IoT, and offer promising commercial prospects.

[0107] An embodiment of the present disclosure further provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above method embodiments are executed.

[0108] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0109] An embodiment of the present disclosure further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0110] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0111] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail here.

[0112] Obviously, those skilled in the art should understand that the modules or steps of the present disclosure described above can be implemented using a general-purpose computing device, they can be concentrated on a single computing device, or distributed across a network composed of multiple computing devices, they can be implemented using program code executable by the computing device, and 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 performed in a different order than herein, or they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. Thus, the present disclosure is not limited to any particular combination of hardware and software.

[0113] The foregoing is merely an exemplary embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure is susceptible to various modifications and variations. Any modifications, equivalent substitutions, improvements, and the like made within the principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A multiplexing method for the Internet of Things in the environment, the method comprising: A first entity configures or pre-configures a communication method for an Internet of Things device, wherein 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.

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, wherein, The coexistence method 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 method of the first entity includes at least one of the following: Carrier signal transmission, wherein the carrier signal transmission includes transmission through an unmodulated radio frequency signal; OFDM transmission, wherein the OFDM transmission includes transmission after OFDM modulation.

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

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

7. The method according to claim 3, wherein, The signal reception method of the Internet of Things device includes at least one of the following: Coupling reception, wherein 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, wherein the filtering reception includes receiving the carrier signal through the electromagnetic coupling, inductive coupling, capacitive coupling, resistive coupling, magnetic resonance coupling, or antenna coupling after filtering; OFDM reception, wherein the OFDM reception includes performing OFDM demodulation after reception.

8. The method according to claim 1, wherein 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), non-orthogonal multiple access (NOMA).

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

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

11. The method according to claim 8, wherein, The multiplexing method is configured or pre-configured according to Internet of Things devices, and the multiplexing methods corresponding to different Internet of Things devices are different.

12. The method according to claim 1, wherein, The duplex method 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. After the energy reaches the preset threshold, reflect the signals immediately after receiving the signals; Transmit signals immediately after receiving the signals; Before the energy reaches the preset threshold, receive signals and charge. After the energy reaches the preset threshold, transmit signals immediately after receiving the signals.

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, the system comprising: 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 storing a computer program therein, 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, wherein, 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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