Information transmission method and apparatus, communication device, and storage medium

Abstract

Embodiments of the present disclosure provide an information transmission method and apparatus, a communication device, and a storage medium. A first device sends an excitation signal to a second device, wherein the excitation signal carries resource information, and the resource information is used for indicating a transmission resource collection for backscattering by the second device.

Description

Information transmission method, device, communication equipment and storage medium Technical Field

[0001] The present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to an information transmission method, apparatus, communication equipment, and storage medium. Background Art

[0002] In the Internet of Things (IoT), traditional IoT devices are typically battery-powered. The proliferation of IoT devices has pushed maintenance costs, including labor and battery costs, to a new level. A vast number of batteries are discarded each year, with only a small fraction effectively recycled, which has a detrimental impact on Earth's ecosystem. Maintaining IoT network operations and replacing batteries can be extremely challenging in extreme environmental conditions.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide an information transmission method, apparatus, communication device, and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided an information transmission method, which is executed by a network node device and includes:

[0006] An excitation signal is sent to a second device, where the excitation signal carries resource information, and the resource information is used to indicate a transmission resource set for backscattering by the second device.

[0007] In some embodiments, the backscattered transmission resource set includes at least one of the following:

[0008] A time domain window of the backscatter;

[0009] The backscattered frequency domain sub-channel set includes at least one frequency domain sub-channel.

[0010] In some embodiments, the resource information is used to indicate at least one of the following:

[0011] The window length of the time domain window;

[0012] The starting time of the time domain window;

[0013] The offset of the starting time of the time domain window relative to the predetermined reference time.

[0014] In some embodiments, the method further comprises at least one of the following:

[0015] monitoring the backscattering performed by the second device, wherein a time domain resource of the backscattering is randomly selected by the second device within the time domain window;

[0016] The backscattering performed by the second device is monitored, wherein a time domain resource of the backscattering corresponds to an identifier of the second device.

[0017] In some embodiments, the method further comprises at least one of the following:

[0018] monitoring the backscattering performed by the second device, wherein a frequency domain subchannel of the backscattering is randomly selected by the second device within the set of frequency domain subchannels;

[0019] The backscattering performed by the second device is monitored, wherein a frequency domain subchannel of the backscattering corresponds to an identification of the second device.

[0020] In some embodiments, the resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following:

[0021] Media Access Control MAC header;

[0022] Media Access Control payload MAC payload;

[0023] Media Access Control Element MAC CE.

[0024] According to a second aspect of the present disclosure, there is provided an information transmission method, which is executed by a second device and includes:

[0025] An excitation signal sent by a network node device is received, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

[0026] In some embodiments, the backscattered transmission resource set includes at least one of the following:

[0027] A time domain window of the backscatter;

[0028] The backscattered frequency domain sub-channel set includes at least one frequency domain sub-channel.

[0029] In some embodiments, the resource information is used to indicate at least one of the following:

[0030] The window length of the time domain window;

[0031] The starting time of the time domain window;

[0032] The offset of the starting time of the time domain window relative to the predetermined reference time.

[0033] In some embodiments, the method further comprises at least one of the following:

[0034] Randomly selecting a time domain resource within the time domain window, wherein the time domain resource is used for performing the backscattering;

[0035] A time domain resource corresponding to the identifier of the second device is selected within the time domain window, wherein the time domain resource is used for the backscattering.

[0036] In some embodiments, the method further comprises at least one of the following:

[0037] Randomly selecting a frequency domain subchannel within the frequency domain subchannel set, wherein the frequency domain subchannel is used for performing the backscattering;

[0038] A frequency domain subchannel corresponding to the identifier of the second device is selected from the frequency domain subchannel set, wherein the frequency domain subchannel is used for the backscattering.

[0039] In some embodiments, the resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following:

[0040] Media Access Control MAC header;

[0041] Media Access Control payload MAC payload;

[0042] Medium Access Control Element MAC CE.

[0043] According to a third aspect of the present disclosure, an information transmission apparatus is provided, which is provided in a network node device and includes:

[0044] The transceiver is configured to send an excitation signal to a second device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

[0045] In some embodiments, the backscattered transmission resource set includes at least one of the following:

[0046] A time domain window of the backscatter;

[0047] The backscattered frequency domain sub-channel set includes at least one frequency domain sub-channel.

[0048] In some embodiments, the resource information is used to indicate at least one of the following:

[0049] The window length of the time domain window;

[0050] The starting time of the time domain window;

[0051] The offset of the starting time of the time domain window relative to the predetermined reference time.

[0052] In some embodiments, the transceiver is further configured to do at least one of the following:

[0053] monitoring the backscattering performed by the second device, wherein a time domain resource of the backscattering is randomly selected by the second device within the time domain window;

[0054] The backscattering performed by the second device is monitored, wherein a time domain resource of the backscattering corresponds to an identifier of the second device.

[0055] In some embodiments, the transceiver is further configured to do at least one of the following:

[0056] monitoring the backscattering performed by the second device, wherein a frequency domain subchannel of the backscattering is randomly selected by the second device within the set of frequency domain subchannels;

[0057] The backscattering performed by the second device is monitored, wherein a frequency domain subchannel of the backscattering corresponds to an identification of the second device.

[0058] In some embodiments, the resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following:

[0059] Media Access Control MAC header;

[0060] Media Access Control payload MAC payload;

[0061] Media Access Control Element MAC CE.

[0062] According to a fourth aspect of the present disclosure, an information transmission apparatus is provided, which is provided in a second device and includes:

[0063] The transceiver is configured to receive an excitation signal sent by a network node device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

[0064] In some embodiments, the backscattered transmission resource set includes at least one of the following:

[0065] A time domain window of the backscatter;

[0066] The backscattered frequency domain sub-channel set includes at least one frequency domain sub-channel.

[0067] In some embodiments, the resource information is used to indicate at least one of the following:

[0068] The window length of the time domain window;

[0069] The starting time of the time domain window;

[0070] The offset of the starting time of the time domain window relative to the predetermined reference time.

[0071] In some embodiments, the apparatus further comprises a processing module configured to do at least one of the following:

[0072] Randomly selecting a time domain resource within the time domain window, wherein the time domain resource is used for performing the backscattering;

[0073] A time domain resource corresponding to the identifier of the second device is selected within the time domain window, wherein the time domain resource is used for the backscattering.

[0074] In some embodiments, the apparatus further comprises a processing module configured to do at least one of the following:

[0075] Randomly selecting a frequency domain subchannel within the frequency domain subchannel set, wherein the frequency domain subchannel is used for performing the backscattering;

[0076] A frequency domain subchannel corresponding to the identifier of the second device is selected from the frequency domain subchannel set, wherein the frequency domain subchannel is used for the backscattering.

[0077] In some embodiments, the resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following:

[0078] Media Access Control MAC header;

[0079] Media Access Control payload MAC payload;

[0080] Medium Access Control Element MAC CE.

[0081] According to a fifth aspect of the embodiments of the present disclosure, a communication system is provided, including a network node device and a second device, wherein:

[0082] The network node device executes the information transmission method provided in the first aspect;

[0083] The second device executes the information transmission method provided in the second aspect.

[0084] In a sixth aspect of an embodiment of the present disclosure, a communication device is provided, comprising a processor, a transceiver, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein the processor executes the information transmission method provided in the first aspect or the second aspect when running the executable program.

[0085] According to a seventh aspect of the embodiments of the present disclosure, a computer storage medium is provided, wherein the computer storage medium stores an executable program; after the executable program is executed by a processor, the information transmission method provided in the first aspect or the second aspect can be implemented.

[0086] The embodiments of the present disclosure provide an information transmission method, apparatus, communication device, and storage medium. A first device sends an excitation signal to a second device, wherein the excitation signal carries resource information, and the resource information is used to indicate a set of transmission resources for backscattering by the second device. The first device indicates the transmission resource set, and the second device performs backscattering based on the transmission resource set indicated by the first device. This reduces conflicts and interference caused by the first device blindly selecting transmission resources for backscattering, thereby improving system capacity and performance.

[0087] The technical solutions provided by the embodiments of the present disclosure should be understood that the above general description and the following detailed description are merely exemplary and explanatory and cannot limit the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0089] FIG1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

[0090] FIG2 is a schematic diagram of backscattering according to an exemplary embodiment;

[0091] FIG3a is a schematic diagram of a network topology architecture according to an exemplary embodiment;

[0092] FIG3 b is a schematic diagram of a network topology architecture according to an exemplary embodiment;

[0093] FIG3c is a schematic diagram of a network topology architecture according to an exemplary embodiment;

[0094] FIG3 d is a schematic diagram of a network topology architecture according to an exemplary embodiment;

[0095] FIG4 is a schematic diagram showing an environmental Internet of Things type according to an exemplary embodiment;

[0096] FIG5 is a schematic diagram showing a flow chart of information transmission according to an exemplary embodiment;

[0097] FIG6 is a schematic diagram of a time domain window according to an exemplary embodiment;

[0098] FIG7 is a schematic diagram showing a frequency domain sub-channel set according to an exemplary embodiment;

[0099] FIG8 is a schematic diagram showing a flow chart of information transmission according to an exemplary embodiment;

[0100] FIG9 is a schematic diagram showing a flow chart of information transmission according to an exemplary embodiment;

[0101] FIG10 is a schematic diagram showing a flow chart of information transmission according to an exemplary embodiment;

[0102] FIG11 is a schematic diagram showing a flow of information transmission according to an exemplary embodiment;

[0103] FIG12 is a schematic diagram showing a flow chart of information transmission according to an exemplary embodiment;

[0104] FIG13 is a schematic structural diagram of an information transmission device according to an exemplary embodiment;

[0105] FIG14 is a schematic structural diagram of an information transmission device according to an exemplary embodiment;

[0106] FIG15 is a schematic structural diagram of a UE according to an exemplary embodiment;

[0107] Fig. 16 is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0108] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present invention.

[0109] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "the," and "the" used in the present disclosure are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0110] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0111] Please refer to Figure 1, which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: a plurality of UEs 11 and a plurality of network devices 12.

[0112] The wireless communication system may be a fourth generation mobile communication technology (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next generation system of the 5G system. The access network in the 5G system may be referred to as an NG-RAN (New Generation-Radio Access Network). Alternatively, an MTC system.

[0113] UE 11 may refer to a device that provides voice and / or data connectivity to a user. UE 11 may communicate with one or more core networks via a Radio Access Network (RAN). UE 11 may be an IoT UE, such as a sensor device, a mobile phone (or "cellular" phone), and a computer with an IoT UE. For example, it may be a fixed, portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE). Alternatively, UE 11 may be a device of an unmanned aerial vehicle. Alternatively, UE 11 may be a vehicle-mounted device, such as a driving computer with wireless communication capabilities, or a wireless communication device connected to an external driving computer. Alternatively, the UE 11 may also be a roadside device, for example, a street lamp, a traffic light, or other roadside device with a wireless communication function.

[0114] The network device 12 may include an access network device. Optionally, the network device 12 may also include a core network device. Among them, the access network device may be an evolved access device (eNB) adopted in a 4G system. Alternatively, it may be an access device (gNB) adopting a centralized distributed architecture in a 5G system. When the access network device adopts a centralized distributed architecture, it generally includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (PHY) layer protocol stack. The embodiment of the present disclosure does not limit the specific implementation method of the access network device.

[0115] A wireless connection can be established between the network device 12 and the UE 11 via a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0116] Ambient-powered IoT is a technology that can address these unmet needs. An ambient-powered IoT device can be an IoT device powered by energy harvesting, either without a battery or with limited energy storage capabilities (e.g., using capacitors), by harvesting radio waves, light, motion, heat, or any other suitable power source.

[0117] Energy obtained from the environment can drive data transmission and wireless communication of sensing nodes. The current mainstream low-power IoT communication chips (such as BLE, LoRa, and NB-IoT) have a transmit and receive power consumption of tens or even hundreds of milliwatts, while the energy obtained by environmental energy harvesting is only at the microwatt level, which is unable to drive these types of nodes. Therefore, a new wireless communication technology is needed to reduce communication energy consumption to tens of microwatts or even below ten microwatts.

[0118] The methods that can be used include backscatter communications technology.

[0119] As shown in Figure 2, backscatter communication utilizes the principle of RF signal backscattering to design extremely low-power modulation and transmission technologies. A reader sends an excitation signal to an ambient IoT device. Since the excitation signal is partially reflected when it reaches the ambient IoT device, the ambient IoT device can adjust the matching between the receiving antenna and the impedance according to the intended information to enhance reflection of the incident excitation signal. It then modulates the acquired sensor data onto the reflected signal to complete data transmission. This process is similar to a reflector. Compared to other communication technologies, backscatter communication does not require complex RF structures, reducing the use of components such as power amplifiers, high-precision crystal oscillators, duplexers, and high-precision filters. It also does not require complex baseband processing, thus simplifying terminal design and significantly reducing terminal node costs.

[0120] Here, the reader may be a network node of a wireless communication network, such as a base station.

[0121] The network topology for backscatter communication can include one of the following:

[0122] Topology 1: As shown in Figure 3a, uplink (UL) and downlink (DL) data transmission is carried out directly between the ambient IoT device and the base station.

[0123] Topology 2: As shown in Figure 3b, ambient IoT devices and base stations indirectly transmit DL and UL data. Intermediary nodes (also called auxiliary nodes) are present in the middle to forward data. Examples of these intermediate nodes include relays, integrated access backhaul (IAB), user equipment (UE), and repeaters (RP).

[0124] Topology 3: As shown in Figure 3c, ambient IoT devices and the base station directly transmit or receive data in the DL or UL. Auxiliary nodes are located on the UL or DL, responsible for receiving or sending UL or DL ​​data. Examples of auxiliary nodes include relays, IABs, UEs, and repeaters.

[0125] Topology 4: As shown in Figure 3d, ambient IoT devices and UEs directly receive and transmit data on the downlink and uplink. The UE collects data and forwards it to the network.

[0126] As shown in Figure 4, Ambient IoT devices can be divided into three types:

[0127] Device A: has no energy storage, cannot generate or amplify signals independently, and can only perform backscatter transmission.

[0128] Device B: Has energy storage, cannot generate signals independently, and can only perform backscatter transmission. The use of stored energy can include amplification of the backscattered signal.

[0129] Device C: has energy storage and can independently generate signals, that is, it has active radio frequency (RF) components for transmission.

[0130] In this way, selecting UL resources for backscattering can enable simultaneous communication between multiple ambient IoT systems in a passive IoT system while reducing conflicts and interference, thereby improving system capacity and performance. This is an urgent problem to be solved.

[0131] As shown in FIG5 , an embodiment of the present disclosure provides an information transmission method, which is executed by a first device and includes:

[0132] Step 501: Send an excitation signal to a second device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

[0133] In one possible implementation, the first device may be a reader in backscatter transmission of an IoT service.

[0134] In one possible implementation, the first device includes at least one of the following: an access network device (such as a base station), a UE, and an auxiliary node, wherein the auxiliary node includes an integrated access backhaul (IAB), a repeater (RP), and the like.

[0135] In one possible implementation, the second device may be an ambient IoT device.

[0136] In a possible implementation, the second device includes at least one of the following: a tag device, a sensor device, etc.

[0137] In one possible implementation, the first device is configured to send an excitation signal to the second device, and receive a backscattered signal sent by the second device based on the excitation signal.

[0138] In one possible implementation, the second device is configured to send a backscatter signal based on the excitation signal sent by the first device.

[0139] In a possible implementation, the frequency band of the excitation signal sent by the first device belongs to the frequency band of cellular mobile communications.

[0140] In one possible implementation, the excitation signal may provide energy for backscattering to the second device.

[0141] In a possible implementation, the excitation signal sent by the first device may provide energy for backscattering for multiple second devices.

[0142] In a possible implementation, the backscatter transmission resource set includes but is not limited to at least one of the following: frequency domain resources and time domain resources.

[0143] In a possible implementation, the backscatter transmission resource set may include one or more groups of transmission resources used to transmit backscatter signals. Here, one group of transmission resources may be used to perform one backscattering operation.

[0144] In a possible implementation, the second device may select a transmission resource from the transmission resource set for backscattering.

[0145] In a possible implementation, the first device may explicitly or implicitly indicate that the transmission resource set is used for the transmission resource for backscattering by the second device.

[0146] Exemplarily, the transmission resource set may include only one set of transmission resources, implicitly indicating that the second device uses the transmission resources for backscattering.

[0147] As another example, the transmission resource set may include multiple groups of transmission resources, and the excitation signal may indicate selection information, explicitly indicating the transmission resources of the second device.

[0148] The first device indicates a transmission resource set, and the second device performs backscattering based on the transmission resource set indicated by the first device, thereby reducing conflicts and interference caused by the first device blindly selecting transmission resources for backscattering and improving system capacity and performance.

[0149] In some embodiments, the resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following:

[0150] Media Access Control MAC header;

[0151] Media Access Control payload MAC payload;

[0152] Medium Access Control Element MAC CE.

[0153] The excitation signal may carry signaling in a predetermined format, and the signaling may include at least one of the following: a MAC header and a MAC payload.

[0154] The resource information may be carried in the MAC header and / or the MAC payload.

[0155] The stimulus signal can also be carried in a MAC CE. Resource information can be included in this MAC CE. The Media Access Control (MAC) header is part of the data link layer and defines how data frames are transmitted over the medium. The Media Access Control (MAC) payload is the actual data contained in the data frame. The Media Access Control Element (MAC) CE is some control information contained in the data frame.

[0156] In some embodiments, the backscattered transmission resource set includes at least one of the following:

[0157] A time domain window of the backscatter;

[0158] The backscattered frequency domain sub-channel set includes at least one frequency domain sub-channel.

[0159] In a possible implementation, the time domain window may include one or more time domain resources. Each time domain resource may be used by the second device to perform backscattering once.

[0160] The second device may perform backscattering on one or more time domain resources selected in the time domain window.

[0161] Exemplarily, as shown in Fig. 6, within a time domain window of backscattering, there may be multiple time domain resources, each of which corresponds to one backscattering.

[0162] In one possible implementation, the first device may indicate, in an explicit or implicit manner, the time domain resources for backscattering by the second device in the time domain window.

[0163] As shown in FIG. 7 , the resource information may indicate a frequency domain sub-channel set including a plurality of frequency domain sub-channels.

[0164] Here, the frequency domain subchannel may be a frequency domain resource required by the second device for one backscattering operation, and the frequency domain subchannel set may be a set of frequency domain resources required by the second device for backscattering operation.

[0165] In a possible implementation, one frequency domain sub-channel may be used by the first device to perform backscattering once.

[0166] The second device may select one or more frequency domain sub-channels from the frequency domain sub-channel set for backscattering.

[0167] In some embodiments, the resource information is used to indicate at least one of the following:

[0168] The window length of the time domain window;

[0169] The starting time of the time domain window;

[0170] The offset of the starting time of the time domain window relative to the predetermined reference time.

[0171] The resource information may be used to indicate a starting time of the time domain window and a window length of the time domain window, so that the second device can determine the time domain window.

[0172] In a possible implementation, the predetermined reference time may be a reference time point used to determine the start time of the time domain window.

[0173] In one possible implementation, the predetermined reference time may include but is not limited to the time when the second device receives the excitation signal.

[0174] The second device may determine the start time of the time domain window according to the predetermined reference time and the offset of the start time of the time domain window relative to the predetermined reference time.

[0175] As shown in FIG8 , an embodiment of the present disclosure provides an information transmission method, which is executed by a first device and includes at least one of the following:

[0176] Step 801a: monitoring the backscattering performed by the second device, wherein the time domain resource of the backscattering is randomly selected by the second device within the time domain window;

[0177] Step 801b: Monitor the backscattering performed by the second device, wherein the time domain resource of the backscattering corresponds to the identifier of the second device.

[0178] After determining the time domain resource, the second device may perform backscattering on the time domain resource.

[0179] The first device can monitor the backscattering of the second device in the time domain window indicated by the resource information carried by the excitation signal, thereby reducing the monitoring time domain range and saving monitoring resources.

[0180] In a possible implementation, the second device may randomly select a time domain resource within a determined time domain window.

[0181] For example, a first device transmits an excitation signal, and multiple second devices can perform backscattering based on the excitation signal within the same time domain window. Within the same time domain window, there are multiple time domain resources, and each second device can randomly select a time domain resource for backscattering. Because each second device randomly selects a time domain resource, the probability of multiple second devices selecting the same time domain resource is reduced, reducing conflicts and interference caused by backscattering by second devices, thereby improving system capacity and performance.

[0182] In a possible implementation, within the time domain window, the time domain resource used by the second device for backscattering corresponds to an identifier of the second device.

[0183] In a possible implementation, the time domain resource corresponds to the identifier of the second device, including but not limited to: the identifier of the second device corresponds to the identifier of the time domain resource within the time domain window. Within the time domain window, the identifier of the time domain resource can uniquely identify a time domain resource.

[0184] In one possible implementation, the time domain resource corresponds to an identifier of the second device, including but not limited to at least one of the following:

[0185] The identifier of the second device and the identifier of the time domain resource have a predetermined corresponding relationship;

[0186] The identifier of the corresponding time domain resource may be calculated based on the identifier of the second device in a predetermined calculation manner.

[0187] The second device may determine, within the time domain window, a time domain resource for backscattering based on the identifier of the second device, and send a backscatter signal on the time domain resource.

[0188] Since the identifier of each second device is unique, the probability of the time domain resources determined based on the identifier of the second device being the same is small, thereby reducing the conflict and interference in the time domain of backscattering performed by the second device and improving system capacity and performance.

[0189] As shown in FIG9 , an embodiment of the present disclosure provides an information transmission method, which is executed by a first device and includes at least one of the following:

[0190] Step 901a: monitoring the backscattering performed by the second device, wherein the frequency domain subchannel of the backscattering is randomly selected by the second device within the set of frequency domain subchannels;

[0191] Step 901b: Monitor the backscattering performed by the second device, wherein the frequency domain subchannel of the backscattering corresponds to the identifier of the second device.

[0192] After determining the frequency domain sub-channel, the second device may perform backscattering on the frequency domain sub-channel.

[0193] The first device can monitor the backscattering of the second device on the frequency domain sub-channel set indicated by the resource information carried by the excitation signal, thereby narrowing the monitoring frequency domain range and saving monitoring resources.

[0194] In a possible implementation, the second device may randomly select a frequency domain subchannel within the determined frequency domain subchannel set.

[0195] For example, a first device transmits an excitation signal, and multiple second devices can perform backscattering based on the excitation signal within the same frequency domain subchannel set. Within the same frequency domain subchannel set, there are multiple frequency domain subchannels, and each second device can randomly select a frequency domain subchannel for backscattering. Because each second device randomly selects a frequency domain subchannel, the probability of multiple second devices selecting the same frequency domain subchannel is reduced, reducing conflicts and interference caused by backscattering by second devices, thereby improving system capacity and performance.

[0196] In a possible implementation, within the frequency domain sub-channel set, the frequency domain sub-channel on which the second device performs backscattering corresponds to an identifier of the second device.

[0197] In one possible implementation, the frequency domain subchannel corresponds to the identifier of the second device, including but not limited to: the identifier of the second device corresponds to the identifier of a frequency domain subchannel within the frequency domain subchannel set. Within the frequency domain subchannel set, the identifier of the frequency domain subchannel can uniquely identify a frequency domain subchannel.

[0198] In one possible implementation, the frequency domain subchannel corresponds to an identifier of the second device, including but not limited to:

[0199] The identifier of the second device and the identifier of the frequency domain sub-channel have a predetermined corresponding relationship;

[0200] The identifier of the corresponding frequency domain sub-channel may be calculated based on the identifier of the second device in a predetermined calculation manner.

[0201] The second device may determine, within the frequency domain sub-channel set, a frequency domain sub-channel for backscattering based on the identifier of the second device, and send a backscatter signal on the frequency domain sub-channel.

[0202] Since the identifier of each second device is unique, the probability of the frequency domain subchannels determined based on the identifier of the second device being the same is small, thereby reducing the conflict and interference in the frequency domain caused by the backscattering of the second device and improving the system capacity and performance.

[0203] In one possible implementation, the backscattered time domain resource is randomly selected by the second device within the time domain window, and the backscattered frequency domain subchannel is randomly selected by the second device within the frequency domain subchannel set;

[0204] In a possible implementation, the time domain resource for backscattering is randomly selected by the second device within the time domain window, and the frequency domain subchannel for backscattering by the second device corresponds to an identifier of the second device.

[0205] In one possible implementation, the time domain resource for backscattering performed by the second device corresponds to an identifier of the second device, and the frequency domain subchannel for backscattering is randomly selected by the second device within a set of frequency domain subchannels;

[0206] In a possible implementation, the time domain resource used by the second device for backscattering corresponds to the identifier of the second device, and the frequency domain subchannel used by the second device for backscattering corresponds to the identifier of the second device.

[0207] As shown in FIG10 , an embodiment of the present disclosure provides an information transmission method, which is executed by a second device and includes:

[0208] Step 1001: Receive an excitation signal sent by a network node device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

[0209] In one possible implementation, the first device may be a reader in backscatter transmission of an IoT service.

[0210] In one possible implementation, the first device includes at least one of the following: an access network device (such as a base station), a UE, and an auxiliary node, wherein the auxiliary node includes an integrated access backhaul (IAB), a repeater (RP), and the like.

[0211] In one possible implementation, the second device may be an ambient IoT device.

[0212] In a possible implementation, the second device includes at least one of the following: a tag device, a sensor device, etc.

[0213] In one possible implementation, the first device is configured to send an excitation signal to the second device, and receive a backscattered signal sent by the second device based on the excitation signal.

[0214] In one possible implementation, the second device is configured to send a backscatter signal based on the excitation signal sent by the first device.

[0215] In a possible implementation, the frequency band of the excitation signal sent by the first device belongs to the frequency band of cellular mobile communications.

[0216] In one possible implementation, the excitation signal may provide energy for backscattering to the second device.

[0217] In a possible implementation, the excitation signal sent by the first device may provide energy for backscattering for multiple second devices.

[0218] In one possible implementation, the backscattered transmission resource set includes but is not limited to: frequency domain resources and time domain resources.

[0219] In a possible implementation, the backscatter transmission resource set may include one or more groups of transmission resources used to transmit backscatter signals. Here, one group of transmission resources may be used to perform one backscattering operation.

[0220] In a possible implementation, the second device may select a transmission resource from the transmission resource set for backscattering.

[0221] In a possible implementation, the first device may explicitly or implicitly indicate that the transmission resource set is used for the transmission resource for backscattering by the second device.

[0222] Exemplarily, the transmission resource set may include only one set of transmission resources, implicitly indicating that the second device uses the transmission resources for backscattering.

[0223] As another example, the transmission resource set may only include multiple groups of transmission resources, and the excitation signal may indicate selection information, explicitly indicating the transmission resources of the second device.

[0224] The first device indicates a transmission resource set, and the second device performs backscattering based on the transmission resource set indicated by the first device, thereby reducing conflicts and interference caused by the first device blindly selecting transmission resources for backscattering and improving system capacity and performance.

[0225] In some embodiments, the resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following:

[0226] Media Access Control MAC header;

[0227] Media Access Control payload MAC payload;

[0228] Medium Access Control Element MAC CE.

[0229] The excitation signal may carry signaling in a predetermined format, and the signaling may include at least one of the following: a MAC header and a MAC payload.

[0230] The resource information may be carried in the MAC header and / or the MAC payload.

[0231] The stimulus signal can also be carried in a MAC CE. Resource information can be included in this MAC CE. The Media Access Control (MAC) header is part of the data link layer and defines how data frames are transmitted over the medium. The Media Access Control (MAC) payload is the actual data contained in the data frame. The Media Access Control Element (MAC) CE is some control information contained in the data frame.

[0232] In some embodiments, the backscattered transmission resource set includes at least one of the following:

[0233] A time domain window of the backscatter;

[0234] The backscattered frequency domain sub-channel set includes at least one frequency domain sub-channel.

[0235] In a possible implementation, the time domain window may include one or more time domain resources. Each time domain resource may be used by the second device to perform backscattering once.

[0236] The second device may perform backscattering on one or more time domain resources selected in the time domain window.

[0237] Exemplarily, as shown in Fig. 6, within a time domain window of backscattering, there may be multiple time domain resources, each of which corresponds to one backscattering.

[0238] In one possible implementation, the first device may indicate, in an explicit or implicit manner, the time domain resources for backscattering by the second device in the time domain window.

[0239] As shown in FIG. 7 , the resource information may indicate a frequency domain sub-channel set including a plurality of frequency domain sub-channels.

[0240] Here, the frequency domain subchannel may be a frequency domain resource required by the second device for one backscattering operation, and the frequency domain subchannel set may be a set of frequency domain resources required by the second device for backscattering operation.

[0241] In a possible implementation, one frequency domain sub-channel may be used by the first device to perform backscattering once.

[0242] The second device may select one or more frequency domain sub-channels from the frequency domain sub-channel set for backscattering.

[0243] In some embodiments, the resource information is used to indicate at least one of the following:

[0244] The window length of the time domain window;

[0245] The starting time of the time domain window;

[0246] The offset of the starting time of the time domain window relative to the predetermined reference time.

[0247] The resource information may be used to indicate a starting time of the time domain window and a window length of the time domain window, so that the second device can determine the time domain window.

[0248] In a possible implementation, the predetermined reference time may be a reference time point used to determine the start time of the time domain window.

[0249] In one possible implementation, the predetermined reference time may include but is not limited to the time when the second device receives the excitation signal.

[0250] The second device may determine the start time of the time domain window according to the predetermined reference time and the offset of the start time of the time domain window relative to the predetermined reference time.

[0251] As shown in FIG11 , an embodiment of the present disclosure provides an information transmission method, which is executed by a second device and includes at least one of the following:

[0252] Step 1101a: Randomly select a time domain resource within the time domain window, wherein the time domain resource is used for performing the backscattering;

[0253] Step 1101b: Select a time domain resource corresponding to the identifier of the second device within the time domain window, wherein the time domain resource is used for the backscattering.

[0254] After determining the time domain resource, the second device may perform backscattering on the time domain resource.

[0255] The first device can monitor the backscattering of the second device in the time domain window indicated by the resource information carried by the excitation signal, thereby reducing the monitoring time domain range and saving monitoring resources.

[0256] In a possible implementation, the second device may randomly select a time domain resource within a determined time domain window.

[0257] For example, a first device transmits an excitation signal, and multiple second devices can perform backscattering based on the excitation signal within the same time domain window. Within the same time domain window, there are multiple time domain resources, and each second device can randomly select a time domain resource for backscattering. Because each second device randomly selects a time domain resource, the probability of multiple second devices selecting the same time domain resource is reduced, reducing conflicts and interference caused by backscattering by second devices, thereby improving system capacity and performance.

[0258] In a possible implementation, within the time domain window, the time domain resource used by the second device for backscattering corresponds to an identifier of the second device.

[0259] In a possible implementation, the time domain resource corresponds to the identifier of the second device, including but not limited to: the identifier of the second device corresponds to the identifier of the time domain resource within the time domain window. Within the time domain window, the identifier of the time domain resource can uniquely identify a time domain resource.

[0260] In one possible implementation, the time domain resource corresponds to an identifier of the second device, including but not limited to at least one of the following:

[0261] The identifier of the second device and the identifier of the time domain resource have a predetermined corresponding relationship;

[0262] The identifier of the corresponding time domain resource may be calculated based on the identifier of the second device in a predetermined calculation manner.

[0263] The second device may determine, within the time domain window, a time domain resource for backscattering based on the identifier of the second device, and send a backscatter signal on the time domain resource.

[0264] Since the identifier of each second device is unique, the probability of the time domain resources determined based on the identifier of the second device being the same is small, thereby reducing the conflict and interference in the time domain of backscattering performed by the second device and improving system capacity and performance.

[0265] As shown in FIG12 , an embodiment of the present disclosure provides an information transmission method, which is executed by a second device and includes at least one of the following:

[0266] Step 1201a: Randomly select a frequency domain subchannel from the frequency domain subchannel set, wherein the frequency domain subchannel is used for backscattering;

[0267] Step 1201b: Select a frequency domain sub-channel corresponding to the identifier of the second device in the frequency domain sub-channel set, wherein the frequency domain sub-channel is used for the backscattering.

[0268] After determining the frequency domain sub-channel, the second device may perform backscattering on the frequency domain sub-channel.

[0269] The first device can monitor the backscattering of the second device on the frequency domain sub-channel set indicated by the resource information carried by the excitation signal, thereby narrowing the monitoring frequency domain range and saving monitoring resources.

[0270] In a possible implementation, the second device may randomly select a frequency domain subchannel within the determined frequency domain subchannel set.

[0271] For example, a first device transmits an excitation signal, and multiple second devices can perform backscattering based on the excitation signal within the same frequency domain subchannel set. Within the same frequency domain subchannel set, there are multiple frequency domain subchannels, and each second device can randomly select a frequency domain subchannel for backscattering. Because each second device randomly selects a frequency domain subchannel, the probability of multiple second devices selecting the same frequency domain subchannel is reduced, reducing conflicts and interference caused by backscattering by second devices, thereby improving system capacity and performance.

[0272] In a possible implementation, within the frequency domain sub-channel set, the frequency domain sub-channel on which the second device performs backscattering corresponds to an identifier of the second device.

[0273] In one possible implementation, the frequency domain subchannel corresponds to the identifier of the second device, including but not limited to: the identifier of the second device corresponds to the identifier of a frequency domain subchannel within the frequency domain subchannel set. Within the frequency domain subchannel set, the identifier of the frequency domain subchannel can uniquely identify a frequency domain subchannel.

[0274] In one possible implementation, the frequency domain subchannel corresponds to an identifier of the second device, including but not limited to:

[0275] The identifier of the second device and the identifier of the frequency domain sub-channel have a predetermined corresponding relationship;

[0276] The identifier of the corresponding frequency domain sub-channel may be calculated based on the identifier of the second device in a predetermined calculation manner.

[0277] The second device may determine, within the frequency domain sub-channel set, a frequency domain sub-channel for backscattering based on the identifier of the second device, and send a backscatter signal on the frequency domain sub-channel.

[0278] Since the identifier of each second device is unique, the probability of the frequency domain subchannels determined based on the identifier of the second device being the same is small, thereby reducing the conflict and interference in the frequency domain caused by the backscattering of the second device and improving the system capacity and performance.

[0279] In one possible implementation, the backscattered time domain resource is randomly selected by the second device within the time domain window, and the backscattered frequency domain subchannel is randomly selected by the second device within the frequency domain subchannel set;

[0280] In a possible implementation, the time domain resource for backscattering is randomly selected by the second device within the time domain window, and the frequency domain subchannel for backscattering by the second device corresponds to an identifier of the second device.

[0281] In one possible implementation, the time domain resource for backscattering performed by the second device corresponds to an identifier of the second device, and the frequency domain subchannel for backscattering is randomly selected by the second device within a set of frequency domain subchannels;

[0282] In a possible implementation, the time domain resource used by the second device for backscattering corresponds to the identifier of the second device, and the frequency domain subchannel used by the second device for backscattering corresponds to the identifier of the second device.

[0283] The following provides a specific example in combination with any of the above embodiments:

[0284] In this example, the device that sends the excitation signal (first device) may include but is not limited to: a base station, a relay, an IAB, a UE, and a repeater.

[0285] When the network side sends the excitation signal, it indicates the size of the backscattering window (time domain window) and the time offset of the starting time of the backscattering window relative to the time when the excitation signal is received.

[0286] Select appropriate resources for backscattering within the backscattering window.

[0287] Method 1: Randomly select backscatter resources (such as time domain resources) within the backscatter window;

[0288] Method 2: Calculate and select backscatter resources (such as time domain resources) within the backscatter window based on the ambient IoT ID (identification of the second device);

[0289] In the frequency domain, when the network side sends an excitation signal, it indicates the subchannel or a set of subchannels (frequency domain subchannel set) used for uplink backscattering.

[0290] Method 1: Randomly select a subchannel (frequency domain subchannel) of the backscatter resource within the subchannel set;

[0291] Method 2: Calculate and select the subchannel of the backscatter resource based on the ambient IoT ID (identifier of the second device) within the subchannel set;

[0292] Any information carried by the network side, such as the backscatter window, time offset, recommended subchannel or subchannel set, etc., can be carried in the MAC header or MAC payload, or as a MAC CE.

[0293] As shown in FIG13 , an embodiment of the present disclosure provides an information transmission apparatus 100, which is provided in a first device and includes:

[0294] The transceiver 110 is configured to send an excitation signal to a second device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

[0295] In some embodiments, the backscattered transmission resource set includes at least one of the following:

[0296] A time domain window of the backscatter;

[0297] The backscattered frequency domain sub-channel set includes at least one frequency domain sub-channel.

[0298] In some embodiments, the resource information is used to indicate at least one of the following:

[0299] The window length of the time domain window;

[0300] The starting time of the time domain window;

[0301] The offset of the starting time of the time domain window relative to the predetermined reference time.

[0302] In some embodiments, the transceiver is further configured to do at least one of the following:

[0303] monitoring the backscattering performed by the second device, wherein a time domain resource of the backscattering is randomly selected by the second device within the time domain window;

[0304] The backscattering performed by the second device is monitored, wherein a time domain resource of the backscattering corresponds to an identifier of the second device.

[0305] In some embodiments, the transceiver is further configured to do at least one of the following:

[0306] monitoring the backscattering performed by the second device, wherein a frequency domain subchannel of the backscattering is randomly selected by the second device within the set of frequency domain subchannels;

[0307] The backscattering performed by the second device is monitored, wherein a frequency domain subchannel of the backscattering corresponds to an identification of the second device.

[0308] In some embodiments, the resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following:

[0309] Media Access Control MAC header;

[0310] Media Access Control payload MAC payload;

[0311] Medium Access Control Element MAC CE.

[0312] As shown in FIG14 , an embodiment of the present disclosure provides an information transmission apparatus 200, which is provided in a second device and includes:

[0313] The transceiver 210 is configured to receive an excitation signal sent by a first device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

[0314] In some embodiments, the backscattered transmission resource set includes at least one of the following:

[0315] A time domain window of the backscatter;

[0316] The backscattered frequency domain sub-channel set includes at least one frequency domain sub-channel.

[0317] In some embodiments, the resource information is used to indicate at least one of the following:

[0318] The window length of the time domain window;

[0319] The starting time of the time domain window;

[0320] The offset of the starting time of the time domain window relative to the predetermined reference time.

[0321] In some embodiments, the apparatus further includes a processing module 220 configured to do at least one of the following:

[0322] Randomly selecting a time domain resource within the time domain window, wherein the time domain resource is used for performing the backscattering;

[0323] A time domain resource corresponding to the identifier of the second device is selected within the time domain window, wherein the time domain resource is used for the backscattering.

[0324] In some embodiments, the apparatus further comprises a processing module configured to do at least one of the following:

[0325] Randomly selecting a frequency domain subchannel within the frequency domain subchannel set, wherein the frequency domain subchannel is used for performing the backscattering;

[0326] A frequency domain subchannel corresponding to the identifier of the second device is selected from the frequency domain subchannel set, wherein the frequency domain subchannel is used for the backscattering.

[0327] In some embodiments, the resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following:

[0328] Media Access Control MAC header;

[0329] Media Access Control payload MAC payload;

[0330] Medium Access Control Element MAC CE.

[0331] An embodiment of the present disclosure provides a communication device, including:

[0332] processor;

[0333] a memory for storing processor-executable instructions;

[0334] The processor is configured to implement the information transmission method of any embodiment of the present disclosure when running the executable instructions.

[0335] In one embodiment, the communication equipment may include, but is not limited to, at least one of: a network control relay and a network device. The network device may include a core network or access network device. The access network device may include an access network device; the core network may include an AMF and an SMF.

[0336] The processor may include various types of storage media, which are non-temporary computer storage media that can continue to store information after the user device loses power.

[0337] The processor may be connected to the memory via a bus or the like, and may be configured to read an executable program stored in the memory, for example, at least one of the methods shown in FIG. 5 and FIG. 8 to FIG. 12 .

[0338] The present disclosure also provides a computer storage medium storing a computer executable program, which, when executed by a processor, implements the information transmission method of any embodiment of the present disclosure, such as at least one of the methods shown in Figures 5 and 8 to 12.

[0339] Regarding the device or storage medium in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method and will not be elaborated here.

[0340] Figure 15 is a block diagram of a UE 800 according to an exemplary embodiment. For example, the UE 800 may be a mobile phone, a computer, a digital broadcast user equipment, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0341] 15 , UE 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0342] The processing component 802 generally controls the overall operation of the UE 800, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0343] The memory 804 is configured to store various types of data to support operations on the UE 800. Examples of such data include instructions for any application or method operating on the UE 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0344] The power component 806 provides power to various components of the UE 800. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the UE 800.

[0345] The multimedia component 808 includes a screen that provides an output interface between the UE 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the UE 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0346] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when the UE 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker for outputting audio signals.

[0347] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0348] The sensor assembly 814 includes one or more sensors for providing various aspects of the status assessment of the UE 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the UE 800. The sensor assembly 814 can also detect changes in the position of the UE 800 or a component of the UE 800, the presence or absence of user contact with the UE 800, the orientation or acceleration / deceleration of the UE 800, and changes in the temperature of the UE 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0349] The communication component 816 is configured to facilitate wired or wireless communication between the UE 800 and other devices. The UE 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0350] In an exemplary embodiment, UE800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0351] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by the processor 820 of the UE 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0352] As shown in Figure 16, an embodiment of the present disclosure shows the structure of an access device. For example, the communication device 900 can be provided as a network device. The communication device can be various network elements such as the aforementioned access network element and / or network function.

[0353] 16 , communication device 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by memory 932 for storing instructions executable by processing component 922, such as applications. The applications stored in memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, processing component 922 is configured to execute instructions to perform any of the aforementioned methods applied to the access device, such as those shown in any of Figures 5 and 8 through 12 .

[0354] The communication device 900 may also include a power supply component 926 configured to perform power management of the communication device 900, a wired or wireless network interface 950 configured to connect the communication device 900 to a network, and an input / output (I / O) interface 958. The communication device 900 may operate based on an operating system stored in the memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0355] In the absence of contradiction, each step in the above-mentioned embodiment or example can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment or example can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment or example can be arbitrarily exchanged. In addition, the optional methods or optional examples in a certain embodiment or example can be arbitrarily combined; in addition, the embodiments or examples can be arbitrarily combined. For example, some or all steps of different embodiments or examples can be arbitrarily combined, and a certain embodiment or example can be arbitrarily combined with the optional methods or optional examples of other embodiments or examples.

[0356] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0357] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for transmitting information, wherein: Executed by the first device, comprising: An excitation signal is sent to a second device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

2. The method according to claim 1, wherein: The backscattered transmission resource set includes at least one of the following: A time domain window of the backscattering; The backscattered frequency domain sub-channel set, wherein the frequency domain sub-channel set includes at least one frequency domain sub-channel.

3. The method according to claim 2, wherein: The resource information is used to indicate at least one of the following: The window length of the time domain window; The starting time of the time domain window; The starting time of the time domain window is offset from the predetermined reference time.

4. The method according to claim 2 or 3, wherein: The method further comprises at least one of the following: Monitoring the backscattering performed by the second device, wherein the time domain resource of the backscattering is randomly selected by the second device within the time domain window; The backscattering performed by the second device is monitored, wherein a time domain resource of the backscattering corresponds to an identifier of the second device.

5. The method according to any one of claims 2 to 4, wherein: The method further comprises at least one of the following: monitoring the backscattering performed by the second device, wherein a frequency domain subchannel of the backscattering is randomly selected by the second device within the set of frequency domain subchannels; The backscattering performed by the second device is monitored, wherein a frequency domain subchannel of the backscattering corresponds to an identification of the second device.

6. The method according to any one of claims 1 to 5, wherein: The resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following: Media Access Control MAC header; Media Access Control Payload MAC payload; Medium Access Control Control Unit MAC CE.

7. A method for transmitting information, wherein: Executed by the second device, comprising: An excitation signal sent by a first device is received, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

8. The method according to claim 7, wherein: The backscattered transmission resource set includes at least one of the following: A time domain window of the backscattering; The backscattered frequency domain sub-channel set, wherein the frequency domain sub-channel set includes at least one frequency domain sub-channel.

9. The method according to claim 8, wherein: The resource information is used to indicate at least one of the following: The window length of the time domain window; The starting time of the time domain window; The starting time of the time domain window is offset from the predetermined reference time.

10. The method according to claim 8 or 9, wherein: The method further comprises at least one of the following: Randomly selecting a time domain resource within the time domain window, wherein the time domain resource is used for performing the backscattering; A time domain resource corresponding to the identifier of the second device is selected within the time domain window, wherein the time domain resource is used for the backscattering.

11. The method according to any one of claims 8 to 10, wherein: The method further comprises at least one of the following: Randomly selecting a frequency domain subchannel in the frequency domain subchannel set, wherein the frequency domain subchannel is used for performing the backscattering; A frequency domain subchannel corresponding to the identifier of the second device is selected from the frequency domain subchannel set, wherein the frequency domain subchannel is used for the backscattering.

12. The method according to any one of claims 7 to 11, wherein: The resource information is carried in downlink information carried by the excitation signal, and the downlink information includes at least one of the following: Media Access Control MAC header; Media Access Control Payload MAC payload; Medium Access Control Control Unit MAC CE.

13. An information transmission device, wherein: Set in the first device, including: The transceiver is configured to send an excitation signal to a second device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

14. An information transmission device, wherein: The second device includes: The transceiver is configured to receive an excitation signal sent by a first device, wherein the excitation signal carries resource information, wherein the resource information is used to indicate a transmission resource set for backscattering by the second device.

15. A communication system, comprising a first device and a second device, wherein: The first device executes the information transmission method provided by any one of claims 1 to 6; The second device executes the information transmission method provided in any one of claims 7 to 12.

16. A communication device comprising a processor, a transceiver, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein: When the processor runs the executable program, the information transmission method provided in any one of claims 1 to 6 or 7 to 12 is executed.

17. A computer storage medium storing an executable program; after the executable program is executed by a processor, the information transmission method provided in any one of claims 1 to 6 or 7 to 12 can be implemented.

Images