Transmission resource acquisition method and apparatus, device, medium, and program product

Abstract

The present application relates to the technical field of communications, and discloses a transmission resource acquisition method and apparatus, a device, a medium, and a program product. The method is executed by an intermediate node. The method comprises: acquiring a transmission resource, wherein the transmission resource is used for communication between the intermediate node and an A-IoT device, or for uplink transmission of the A-IoT device. By means of the method, the intermediate node obtains the transmission resource required to communicate with the A-IoT device, thereby meeting communication requirements.

Description

Method, device, equipment, medium and program product for acquiring transmission resources Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method, apparatus, device, medium and program product for acquiring transmission resources. Background Art

[0002] In a topology of an Ambient Internet of Things (A-IoT) communication system, including network devices, intermediate nodes, and A-IoT devices, the intermediate nodes and network devices communicate over the New Radio (NR) air interface, while the intermediate nodes and A-IoT devices communicate over a new air interface.

[0003] However, how to obtain the transmission resources used for communication between intermediate nodes and A-IoT devices is an urgent problem to be solved.

[0004] Summary of the Invention

[0005] This application provides a method, apparatus, device, medium, and program product for acquiring transmission resources. The technical solution at least includes:

[0006] According to one aspect of an embodiment of the present application, a method for acquiring transmission resources is provided. The method is performed by an intermediate node and includes:

[0007] Acquire transmission resources, which are used for communication between intermediate nodes and A-IoT devices, or for uplink transmission of A-IoT devices.

[0008] According to another aspect of an embodiment of the present application, a method for acquiring transmission resources is provided. The method is performed by an A-IoT device, and the method includes:

[0009] Obtain transmission resources based on scheduling information sent by network devices;

[0010] Among them, transmission resources are used for communication between A-IoT devices and network devices.

[0011] According to another aspect of an embodiment of the present application, a method for configuring transmission resources is provided. The method is performed by a network device, and the method includes:

[0012] Configure transmission resources. Transmission resources are used for communication between intermediate nodes and A-IoT devices, or for uplink transmission of A-IoT devices.

[0013] According to another aspect of an embodiment of the present application, a device for acquiring transmission resources is provided, the device including:

[0014] The receiving module is used to obtain transmission resources, and the transmission resources are used for communication between the transmission resource acquisition device and the A-IoT device, or for uplink transmission of the A-IoT device.

[0015] According to another aspect of an embodiment of the present application, a device for acquiring transmission resources is provided, the device including:

[0016] A receiving module, configured to obtain transmission resources based on the scheduling information sent by the network device;

[0017] The transmission resources are used for communication between the transmission resource acquisition device and the network equipment.

[0018] According to another aspect of an embodiment of the present application, a device for configuring transmission resources is provided, the device including:

[0019] The sending module is used to configure transmission resources. The transmission resources are used for communication between intermediate nodes and A-IoT devices, or for uplink transmission of A-IoT devices.

[0020] According to another aspect of an embodiment of the present application, an intermediate node is provided, the intermediate node including:

[0021] a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor;

[0022] The processor is configured to load and execute executable instructions to implement the methods for acquiring transmission resources in the above-mentioned aspects.

[0023] According to another aspect of an embodiment of the present application, an A-IoT device is provided, the A-IoT device including:

[0024] a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor;

[0025] The processor is configured to load and execute executable instructions to implement the methods for acquiring transmission resources in the above-mentioned aspects.

[0026] According to another aspect of an embodiment of the present application, a network device is provided, the network device including:

[0027] a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor;

[0028] The processor is configured to load and execute executable instructions to implement the configuration method of transmission resources in the above aspects.

[0029] According to another aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which at least one program is stored. The at least one program is loaded and executed by a processor to implement a method for acquiring transmission resources or a method for configuring transmission resources as described in the above aspects.

[0030] According to another aspect of an embodiment of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on an intermediate node or an A-IoT device, it is used to implement a method for acquiring transmission resources in each of the above aspects. When the chip runs on a network device, it is used to implement a method for configuring transmission resources in each of the above aspects.

[0031] According to another aspect of an embodiment of the present application, a computer program product or a computer program is provided, which includes computer instructions, the computer instructions are stored in a computer-readable storage medium, a processor obtains the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to implement a method for obtaining transmission resources or a method for configuring transmission resources as described in the above aspects.

[0032] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0033] This method obtains transmission resources, which are used for communication between the intermediate node and the A-IoT device, or for uplink transmission of the A-IoT device. This method enables the intermediate node to obtain the transmission resources required to communicate with the A-IoT device, thus meeting the communication needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] FIG1 shows a schematic diagram of a topology structure 1 provided by an exemplary embodiment of the present application;

[0036] FIG2 shows a schematic diagram of a topology structure 2 provided by an exemplary embodiment of the present application;

[0037] FIG3 is a schematic diagram showing an uplink data transmission process provided by a related art;

[0038] FIG4 shows a flow chart of a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0039] FIG5 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0040] FIG6 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0041] FIG7 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0042] FIG8 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0043] FIG9 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0044] FIG10 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0045] FIG11 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0046] FIG12 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0047] FIG13 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0048] FIG14 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0049] FIG15 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0050] FIG16 shows a flowchart of a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0051] FIG17 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0052] FIG18 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0053] FIG19 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0054] FIG20 is a schematic diagram showing a method for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0055] FIG21 shows a flow chart of a method for configuring transmission resources provided by an exemplary embodiment of the present application;

[0056] FIG22 shows a block diagram of an apparatus for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0057] FIG23 shows a block diagram of an apparatus for acquiring transmission resources provided by an exemplary embodiment of the present application;

[0058] FIG24 shows a block diagram of a transmission resource configuration device provided by an exemplary embodiment of the present application;

[0059] FIG25 shows a schematic structural diagram of an intermediate node or A-IoT device provided by an exemplary embodiment of the present application;

[0060] FIG26 shows a schematic structural diagram of a network device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0061] To make the objectives, technical solutions, and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail herein, with examples shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0062] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0063] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, 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 this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as 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."

[0064] The technical solutions described in some embodiments of the present application can be applicable to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WFD) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system, cellular Internet of Things system, cellular passive Internet of Things system, and can also be applied to subsequent evolution systems of 5G NR system, and can also be applied to 6G and subsequent evolution systems.

[0065] It should be understood that in some embodiments of the present application, "5G" may also be referred to as "5G NR" or "NR".

[0066] It should be understood that in the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0067] In the embodiments of the present application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (for example, a terminal device and a network device). The present application does not limit the specific implementation method. For example, predefined can refer to information defined in a protocol.

[0068] In the embodiments of the present application, "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0069] Next, let’s introduce the cellular Internet of Things:

[0070] As 5G industry applications expand, the types of connected objects and application scenarios will increase, placing higher demands on the price and power consumption of communication terminals. The application of battery-free, low-cost passive IoT devices has become a key technology for cellular IoT. Passive IoT devices can be based on related zero-power technologies, such as Radio Frequency Identification (RFID), and can be extended to suit cellular IoT.

[0071] Next, we will introduce the classification of zero-power terminals:

[0072] In this application, zero-power terminal, zero-power device, and zero-power terminal device have the same meaning. Based on the energy source and usage of the zero-power terminal, zero-power terminals can be divided into the following types:

[0073] Passive zero-power terminal;

[0074] The zero-power terminal does not require a built-in battery. When the zero-power terminal is close to the network device, the zero-power terminal is within the near field formed by the radiation of the network device antenna. For example, the network device is a reader / writer of the Radio Frequency Identification (RFID) system. Therefore, the zero-power terminal antenna generates an induced current through electromagnetic induction, and the induced current drives the low-power chip circuit of the zero-power terminal to realize the demodulation of the forward link signal and the modulation of the reverse link signal. For the backscatter link, the zero-power terminal can use backscatter or extremely low-power active transmission to transmit the signal. The passive zero-power terminal does not require a built-in battery to drive either the forward link or the reverse link, and is a true zero-power terminal.

[0075] Passive zero-power terminals do not require batteries, and their RF circuits and baseband circuits are very simple. For example, they do not require low-noise amplifiers (LNAs), power amplifiers (PAs), crystal oscillators, analog-to-digital converters (ADCs), and other devices. They have many advantages such as small size, light weight, very low price, and long service life.

[0076] Semi-passive zero-power terminal;

[0077] Semi-passive zero-power terminals lack conventional batteries. Instead, they use energy harvesting modules to harvest ambient energy and store it in an energy storage unit, typically a capacitor. This energy storage unit then drives the low-power chip circuitry of the zero-power terminal, enabling tasks such as demodulating forward link signals and modulating backward link signals. For backscatter links, the zero-power terminal can transmit signals using backscatter or extremely low-power active transmission.

[0078] Semi-passive zero-power terminals require no internal batteries for either forward or reverse link operation. Instead, the energy stored in capacitors is derived from ambient energy harvested by the energy harvesting module, making them truly zero-power terminals. They inherit many of the advantages of passive zero-power terminals, including small size, light weight, very affordable price, and long service life.

[0079] Active zero-power terminal;

[0080] In some scenarios, zero-power terminals can also be active zero-power terminals, which can have built-in batteries. The battery is used to drive the low-power chip circuits of the zero-power terminal, enabling tasks such as demodulating forward link signals and modulating backward link signals. However, for backscatter links, the zero-power terminal uses backscatter or extremely low-power active transmission to transmit signals. Although equipped with a built-in battery, this type of active zero-power terminal has extremely low power consumption and complexity, allowing for smaller batteries, resulting in lower cost and size. The built-in battery can also serve as an energy storage unit, allowing the energy harvesting module to store collected ambient energy, thereby achieving a longer maintenance cycle or even no maintenance.

[0081] Active zero-power terminals are powered by built-in batteries to extend their communication range and improve communication reliability. Therefore, they are used in scenarios with relatively high requirements for communication distance and read latency.

[0082] Next, we will introduce the devices based on ambient energy:

[0083] In NR and Wi-Fi systems, the battery-free and low-cost nature of devices supports low-cost, large-scale deployment and maintenance-free development of IoT devices. IoT devices powered by ambient energy, also known as Ambient IoT (A-IoT) devices, draw their operating energy from ambient energy sources such as wireless signals, solar energy, and thermal energy. These devices are similar to passive or semi-passive zero-power terminals in zero-power communications.

[0084] A-IoT devices can be divided into three types, each with corresponding complexity and communication capabilities.

[0085] Device A: It does not have the ability to store energy and cannot send independent signals, that is, it uses backscatter transmission.

[0086] Device B: It has energy storage capability but cannot transmit independent signals. Instead, it uses backscattering transmission and can use the stored energy to amplify the backscattered signal.

[0087] Device C: It has energy storage capability and can send independent signals, that is, it has active transmission capability.

[0088] Device A has the lowest complexity and power consumption, reaching as low as 1 microwatt. However, its communication range is limited, typically only a few meters. Device A requires a network device to provide a carrier signal for backscattering transmission. Device C typically has a large capacitor to store energy from the environment, consumes hundreds of microwatts, can support active signal transmission, and has a longer communication range. Because Device C can perform active transmission, it does not require a network device to provide a carrier signal. Device B's complexity and power consumption are between those of Device A and Device C.

[0089] In addition, zero-power terminals can also support various types of environmental energy harvesting, such as radio frequency, solar energy, thermal energy, mechanical energy, etc. Among them, zero-power terminals based on radio frequency energy harvesting may require the network to provide radio frequency power signals.

[0090] A-IoT devices can be used in at least the following four scenarios:

[0091] (1) Object recognition, such as logistics, production line product management, and supply chain management;

[0092] (2) Environmental monitoring, such as temperature, humidity, and harmful gas monitoring of the working environment and natural environment;

[0093] (3) Positioning, such as indoor positioning, intelligent object search, and production line item positioning;

[0094] (4) Intelligent control, such as intelligent control of various electrical appliances in smart homes (turning on and off air conditioners, adjusting temperature), and intelligent control of various facilities in agricultural greenhouses (automatic irrigation and fertilization).

[0095] In some embodiments, A-IoT devices are divided into the following two categories:

[0096] Category 1 A-IoT devices: These devices have a peak power consumption of approximately 1 microwatt, have energy storage capabilities, an initial sampling frequency offset of 10X ppm (10 times one millionth), lack uplink and downlink power amplifiers, and transmit uplink data by backscattering an external carrier.

[0097] Category 2 A-IoT devices: Peak power consumption is less than a few hundred microwatts. These A-IoT devices have energy storage capabilities and an initial sampling deviation of 10X ppm. They may be equipped with uplink and / or downlink power amplifiers. Uplink transmissions can be generated internally within the A-IoT device, i.e., active transmissions, or sent by backscattering an external carrier.

[0098] Next, we will introduce the deployment scenarios or topologies of A-IoT devices:

[0099] Deployment scenario (topology) 1: The network device 130 and the A-IoT device 120 directly perform bidirectional communication.

[0100] FIG1 shows a schematic diagram of a topology structure 1 provided by an exemplary embodiment of the present application. The topology structure 1 includes an A-IoT device 120 and a network device 130 .

[0101] The network device 130 in the present application provides wireless communication functions, and the network device 130 includes but is not limited to: an evolved Node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., a home evolved Node B, or a home node B, HNB), a baseband unit (BBU), an access point (AP) in a Wi-Fi system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It can also be a next generation node B (gNB) or a transmission point (TRP or TP) in a 5G mobile communication system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DPU). The invention relates to a base station (DU) in a B5G mobile communication system or a 6G mobile communication system, or a core network (CN), fronthaul, backhaul, radio access network (RAN), network slicing, or a service cell, primary cell (PCell), primary secondary cell (PSCell), special cell (SpCell), secondary cell (SCell), and neighboring cell of a terminal device.

[0102] The A-IoT device 120 in this application refers to the above introduction to the device based on ambient energy, which will not be repeated here.

[0103] In some embodiments, the network device that sends information to the A-IoT device 120 and the network device that receives the information sent by the A-IoT device 120 may be two different network devices.

[0104] Deployment scenario (topology) 2: The A-IoT device 120 performs bidirectional communication with the intermediate node 110 , and the intermediate node 110 can transfer signaling and / or data between the network device 130 (such as a base station) and the A-IoT device 120 .

[0105] FIG2 shows a schematic diagram of a topology structure 2 provided by an exemplary embodiment of the present application. The topology structure 2 includes an intermediate node 110 , an A-IoT device 120 , and a network device 130 .

[0106] The intermediate node 110 in this application can be a repeater, an integrated access and backhaul (IAB) node, a terminal device, a relay device, etc., and has the ability to communicate with the A-IoT device 120.

[0107] The terminal device in this application is also called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, and user device. The terminals include, but are not limited to, handheld devices, wearable devices, vehicle-mounted devices, and Internet of Things devices, such as mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (MIDs), augmented reality (AR) terminals, virtual reality (VR) terminals, and mixed reality (MR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, wireless terminals in remote medical surgery, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loops (WLANs), and wireless terminals in industrial control. Loop (WLL) stations, personal digital assistants (PDAs), TV set-top boxes (STBs), customer premises equipment (CPEs), etc.

[0108] A typical application scenario of this topology is an indoor scenario, where a command is sent to the A-IoT device 120 through the intermediate node 110, such as finding an object or controlling the operation of a device.

[0109] Next, the uplink data transmission process is introduced:

[0110] In LTE and NR systems, the UE requests uplink data transmission resources from the network device through a Scheduling Request (SR). In the LTE system, SR adopts a simple on / off mechanism, in which information is transmitted by whether there is energy on the corresponding physical uplink control channel (PUCCH) resource. For example, if the UE does not request uplink data transmission resources, nothing is sent on the configured PUCCH resources, that is, there is no energy. The SR design in the NR system is similar to the LTE system, that is, an on / off mechanism is used to allow the network device to execute an energy detector for SR detection. In addition, SR can be combined with other uplink control information (UCI) in the PUCCH. In this case, the PUCCH may include information of preset bits, such as 1 bit of information, to indicate whether uplink data transmission resources are requested.

[0111] 3 is a schematic diagram of an uplink data transmission process provided by related art. The process is performed between a terminal device 310 and a network device 320.

[0112] When the terminal device 310 needs to transmit uplink data, it sends an SR via the PUCCH to request uplink data transmission resources.

[0113] After successfully detecting the SR, the network device 320 sends downlink control information (DCI) via a physical downlink control channel (PDCCH) including an uplink grant (UL grant) to allocate uplink data transmission resources.

[0114] Subsequently, the terminal device 310 sends a buffer status report (BSR) on the physical uplink shared channel (PUSCH) in the allocated uplink data transmission resources to inform the network device 320 of the amount of data to be sent in the buffer of the terminal device 310. Based on the BSR, the network device 320 allocates appropriate resources and modulation and coding scheme (MCS) to the terminal device 310 in the uplink grant to transmit uplink data (UL data) on the PUSCH.

[0115] Next, we will introduce the Configured Grant (CG) transmission technology:

[0116] To reduce the overhead and delay of UE resource scheduling requests, CG transmission technology is introduced. The basic idea of ​​CG transmission technology is that network equipment pre-allocates transmission resources for terminal devices, and terminal devices can directly initiate uplink transmissions on the pre-allocated transmission resources based on service needs.

[0117] There are two CG resource configuration methods: Type 1 CG resource configuration method and Type 2 CG resource configuration method.

[0118] Type 1: All specific resource configuration information required for transmission on CG resources is configured through high-layer signaling. In Type 1 CG resource configuration mode, once the high-layer signaling configuration is completed, the CG resources are activated.

[0119] Type 2: Configure part of the specific resource configuration information required for transmission on the CG resource through high-level signaling, and activate and complete the configuration of the remaining specific resource configuration information through downlink control information.

[0120] In a topological structure of an A-IoT communication system, network devices, intermediate nodes, and A-IoT devices are included. The intermediate nodes and network devices reuse the NR air interface for communication, while the intermediate nodes and A-IoT devices use a new air interface for communication. However, how to obtain the transmission resources used for communication between the intermediate nodes and the A-IoT devices is an urgent problem to be solved. To solve the above problem, an embodiment of the present application provides a method for obtaining transmission resources.

[0121] FIG4 shows a flowchart of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. The method is executed by an intermediate node and includes:

[0122] Step 410: Acquire transmission resources.

[0123] The transmission resources are used for communication between intermediate nodes and A-IoT devices, or for uplink transmission of A-IoT devices. Uplink transmission of A-IoT devices is the transmission of data from A-IoT devices to network devices.

[0124] In some embodiments, the method is applied to the topology structure 2 as shown in Figure 2, wherein the A-IoT device includes an environmental energy-based device, which can be a communication device for WiFi or a cellular network. Environmental energy includes at least one of wireless radio frequency energy, solar energy, thermal energy, and mechanical energy. The network device is a device that communicates with the A-IoT device or an intermediate node, or a device that provides wireless power supply for the A-IoT device, such as an access point (AP) in WiFi or a base station in a cellular network. The intermediate node can communicate with the network device and the A-IoT device, and can also be a carrier that provides wireless power supply for the A-IoT device or is used for backscattering of the A-IoT device. In the embodiment of the present application, the intermediate node is taken as an example to illustrate.

[0125] In some embodiments, the modulation method used for communication between the intermediate node and the A-IoT device includes at least one of: On Off Keying (OOK); Frequency Shift Keying (FSK); and Phase Shift Keying (PSK).

[0126] In some embodiments, the coding method used in the communication between the intermediate node and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

[0127] In some embodiments, the modulation method used in the communication between the intermediate node and the network device includes Orthogonal Frequency Division Multiplexing (OFDM) modulation.

[0128] In some embodiments, the coding method used in the communication between the intermediate node and the network device includes at least one of polarization code and low-density parity check code (LDPC) coding.

[0129] In some embodiments, the method for obtaining transmission resources includes at least one of the following:

[0130] Method 1: Obtain transmission resources through SR;

[0131] Method 2: Obtain CG resources, which are used for communication between intermediate nodes and A-IoT devices;

[0132] Method 3: Obtain transmission resources based on scheduling signaling sent by network devices.

[0133] Method 1: Obtain transmission resources through SR.

[0134] Figure 5 shows a schematic diagram of a method for acquiring transmission resources, according to an exemplary embodiment of the present application. An intermediate node sends a first SR 512 to a network device via a first SR resource 510. The first SR 512 is used to request transmission resources from the network device. The network device configures a first transmission resource 520 for the intermediate node, which is used for communication between the intermediate node and the A-IoT device.

[0135] In some embodiments, method 1 includes:

[0136] Sub-step 1: Sending a first SR 512 via a first SR resource 510. Sub-step 2: Obtaining a first transmission resource 520 configured by the network device. First transmission resource 520 is used for communication between the intermediate node and the A-IoT device. First SR 512 is used to request transmission resources from the network device. First transmission resource 520 is the resource configured by the network device after receiving the first SR 512. First transmission resource 520 is either an uplink resource or a sidelink resource.

[0137] In some embodiments, the intermediate node requests transmission resources from the network device in the same way as requesting uplink data transmission resources. The PUCCH resources used to send SR are also the same (first SR resource 510). The network device does not know the purpose of the intermediate node requesting transmission resources. The network device configures a first transmission resource 520 for communication between the intermediate node and the A-IoT device. The first transmission resource 520 is usually a smaller resource, and for A-IoT devices, the working frequency domain bandwidth is generally also small. Communicating through the first transmission resource 520 can complete the work without wasting resources.

[0138] Figure 6 shows a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. The intermediate node sends a first SR 512 to the network device through the first SR resource 510. The first SR 512 is used to request transmission resources from the network device. The network device configures a first uplink resource 610 for the intermediate node, and the intermediate node reports a BSR 612 to the network device through the first uplink resource 610. The network device configures a second transmission resource 620 based on the BSR 612. The size of the second transmission resource 620 is larger than the size of the first uplink resource 610. The second transmission resource 620 is used for communication between the intermediate node and the A-IoT device.

[0139] In some embodiments, method 1 includes: sub-step 1: sending a first SR 512 via a first SR resource 510; sub-step 2: obtaining a first uplink resource 610 configured by a network device; sub-step 3: reporting a BSR 612 via the first uplink resource 610; and sub-step 4: obtaining a second transmission resource 620 configured by the network device, where the second transmission resource 620 is used for communication between the intermediate node and the A-IoT device. The first SR 512 is used to request transmission resources from the network device, the first uplink resource 610 is a resource configured by the network device after receiving the first SR 512, and the second transmission resource 620 is an uplink resource or a sidelink resource.

[0140] In some embodiments, the first uplink resource 610 is a resource used to report a BSR 612. The intermediate node can request a resource larger than the first uplink resource 610 from the network device through the BSR 612, such as a second transmission resource 620. In the case where the intermediate node is a UE, the size of the second transmission resource 620 required by the UE is determined through the UE's implementation algorithm, and the corresponding BSR 612 is reported. The size of the second transmission resource 620 is related to the communication between the intermediate node and the A-IoT device. Different communications require different second transmission resources 620. For example, the second transmission resource 620 required by the intermediate node to send control signaling to the A-IoT device is smaller, while the second transmission resource 620 required by the intermediate node to schedule the A-IoT device for uplink data transmission is larger.

[0141] This method reuses the related scheduling request process, does not need to define new SR resources, has low complexity and is easy to implement.

[0142] FIG7 is a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. An intermediate node sends a first SR 512 to a network device via a first SR resource 510. The first SR 512 is used to request transmission resources from the network device. The network device configures a second uplink resource 710 for the intermediate node, and the intermediate node reports first information 712 to the network device via the second uplink resource 710. Based on the first information 712, the network device configures a third transmission resource 720. The third transmission resource 720 is used for communication between the intermediate node and the A-IoT device.

[0143] In some embodiments, method 1 includes: sub-step 1: sending a first SR 512 via a first SR resource 510; sub-step 2: obtaining a second uplink resource 710 configured by a network device; sub-step 3: reporting first information 712 via the second uplink resource 710, where the first information 712 is used to indicate transmission resource requirements; and sub-step 4: obtaining a third transmission resource 720 configured by the network device, where the third transmission resource 720 is used for communication between the intermediate node and the A-IoT device. The first SR 512 is used to request transmission resources from the network device, the second uplink resource 710 is a resource configured by the network device after receiving the first SR 512, and the third transmission resource 720 is an uplink resource or a sidelink resource.

[0144] In some embodiments, the first information is used to indicate at least one of the following information: time domain resource demand information of the transmission resource; frequency domain resource demand information of the transmission resource; type of the transmission resource; type of A-IoT device.

[0145] The time domain resource requirement information for the transmission resource includes at least one of the size, location, and type of the time domain resource. The size of the time domain resource includes the number of time domain slots, or the starting time slot plus the time slot length, or the number of symbols, or the starting symbol plus the symbol length. The location of the time domain resource includes the time offset between the time when the intermediate node sends the first SR and the requested time domain resource, or the first time slot and the corresponding time slot offset value, or the first symbol and the corresponding symbol offset value, or a bit in a bitmap with a value of 1 or 0 used to represent the location of the time domain resource. The location of the time domain resource can be continuous or discontinuous. For example, the requested time domain resource can include multiple time slots, each time slot includes multiple symbols, and the locations of these time slots can be continuous or discontinuous. The types of time domain resources include: time slot, sub-time slot, symbol, symbol group, uplink time domain resource, sidelink time domain resource, etc.

[0146] The frequency domain resource requirement information for the transmission resource includes at least one of the size, location, and type of the frequency domain resource. The size of the frequency domain resource can be determined based on the capabilities of the A-IoT device or can be predefined. The location of the frequency domain resource can be one or more. The location of the frequency domain resource can include a preset location or a set of preset locations.

[0147] The type of the transmission resource is a preset type, or one or more types among multiple preconfigured types.

[0148] The type of an A-IoT device is used to indicate the capabilities of the A-IoT device, including the frequency domain resources supported by the A-IoT device.

[0149] By indicating the demand information of transmission resources through the first information, transmission resources can be requested more accurately, which is in line with the working scenario of the A-IoT device.

[0150] In some embodiments, the third transmission resource is a resource determined according to scheduling signaling sent by the network device; or, the third transmission resource is part of or all of the resources in a resource pool, and the resource pool is configured by the network device.

[0151] When the network device configures a resource pool for the intermediate node, and the intermediate node requests a certain resource or certain resources in the resource pool from the network device, the first information does not need to carry the specific transmission resource requested by the intermediate node.

[0152] Figure 8 shows a schematic diagram of a method for acquiring transmission resources, according to an exemplary embodiment of the present application. The intermediate node sends a second SR resource 812 to the network device via a second SR resource 810. Second SR 812 is used to request transmission resources from the network device. Second SR resource 810 is a dedicated SR resource used when the intermediate node communicates with an A-IoT device. The network device then configures a fourth transmission resource 820 for the intermediate node, which is used for communication between the intermediate node and the A-IoT device.

[0153] In some embodiments, method 1 includes: sub-step 1: sending a second SR 812 through a second SR resource 810, where the second SR resource 810 is a SR resource dedicated to use when the intermediate node communicates with the A-IoT device; sub-step 2: obtaining a fourth transmission resource 820 configured by the network device, where the fourth transmission resource 820 is used for communication between the intermediate node and the A-IoT device.

[0154] In some embodiments, different second SR resources correspond to different types of A-IoT devices, and different types of A-IoT devices require different transmission resources; or, different second SR resources correspond to different transmission resources, and different transmission resources correspond to different types of A-IoT devices.

[0155] Exemplarily, different second SR resources correspond to different types of A-IoT devices, and different types of A-IoT devices require different time domain resource sizes and positions, and different frequency domain resource sizes and positions; or, different second SR resources correspond to different time domain resource sizes and positions, and different frequency domain resource sizes and positions, and different time domain resource sizes and positions, and different frequency domain resource sizes and positions correspond to different types of A-IoT devices.

[0156] Table 1 provides an example of the information corresponding to the first SR resource, the second SR resource 1, and the second SR resource 2. For example, the second SR resource 1 corresponds to an A-IoT device of A-IoT device type 1, the corresponding time domain resource is a time domain resource starting from the first symbol and having a size of 2 symbols, and the corresponding frequency domain resource is a frequency domain resource with a center frequency of 2 GHz and a size of frequency range 2.

[0157] Table 1

[0158] In some embodiments, the correspondence between different second SR resources and different types of A-IoT devices is pre-set; or, the correspondence between different second SR resources and different types of A-IoT devices is configured by the network device; or, the correspondence between different second SR resources and different transmission resources is pre-set; or, the correspondence between different second SR resources and different transmission resources is configured by the network device.

[0159] Since the second SR resource is a SR resource dedicated to the communication between the intermediate node and the A-IoT device, the network device can identify the purpose of the transmission resource requested by the intermediate node and schedule appropriate transmission resources.

[0160] Figure 9 shows a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. The intermediate node sends SR912 to the network device through SR resource 910. SR912 is used to request the network device to obtain transmission resources 920 and third uplink resources 930. The network device configures transmission resources 920 for the intermediate node, and transmission resources 920 are used for communication between the intermediate node and the A-IoT device. The network device configures the third uplink resource 930 for the intermediate node. The third uplink resource 820 is used for the intermediate node to report information 932 related to the A-IoT device to the network device. The information 932 includes control channel information and / or data channel information.

[0161] In some embodiments, method 1 further includes: acquiring a third uplink resource 930;

[0162] Among them, the third uplink resource 930 is a resource configured by the network device after receiving SR912. The third uplink resource 930 is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the network device.

[0163] Transmission resources and the third uplink resource are requested through SR, which meets the needs of communication between the intermediate node and the A-IoT device, and the needs of the intermediate node to report information related to the A-IoT device to the network equipment.

[0164] In some embodiments, method 1 further includes: receiving an SR resource configuration, where the SR resource configuration is used to indicate an SR resource.

[0165] In some embodiments, receiving the SR resource configuration includes: receiving a first SR resource configuration, the first SR resource configuration being used to indicate a first SR resource; or receiving a second SR resource configuration, the second SR resource configuration being used to indicate a second SR resource.

[0166] In some embodiments, the transmission resource in method 1 is an uplink resource or a sidelink resource.

[0167] The network device allocates sidelink resources to the intermediate node through dynamic scheduling, such as using DCI format 3_0. The sidelink resources are used for communication between the intermediate node and the A-IoT device to meet communication needs.

[0168] Method 2: Obtain CG resources, which are used for communication between intermediate nodes and A-IoT devices.

[0169] In some embodiments, CG resources are resources dedicated to use when the intermediate node communicates with the A-IoT device.

[0170] In some embodiments, the CG resource configuration corresponding to the CG resource includes second information, and the second information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

[0171] Since CG resources are resources dedicated to communication between intermediate nodes and A-IoT devices, network devices can identify the purpose of the transmission resources requested by the intermediate nodes and thus configure appropriate CG resources. When configuring CG resources, in order to distinguish the resources dedicated to communication between intermediate nodes and A-IoT devices, the network device indicates this through a specified element (such as the second information) in the relevant CG resource configuration.

[0172] In some embodiments, the relevant information of the A-IoT device corresponding to the CG resource includes at least one of the following: the type of the A-IoT device; the capability of the A-IoT device; the modulation method of the uplink transmission of the A-IoT device; and the encoding method of the uplink transmission of the A-IoT device.

[0173] In some embodiments, the type of A-IoT device corresponding to the CG resource includes: at least one of a first type A-IoT device and a second type A-IoT device, the uplink transmission of the first type A-IoT device adopts a backscattering method, and the uplink transmission of the second type A-IoT device adopts an active transmission method.

[0174] Different uplink transmission methods of A-IoT devices have different requirements for transmission resources. For example, the frequency domain bandwidth corresponding to the backscattering method can be narrower, while the frequency domain bandwidth corresponding to the active transmission method is wider because it requires sufficient guard band.

[0175] The capabilities of A-IoT devices also determine the configuration of CG resources. For example, the frequency domain-related capabilities of A-IoT devices include supporting variable frequency domain positions and bandwidths, or supporting fixed frequency domain positions and bandwidths.

[0176] For the modulation or coding method of uplink transmission of A-IoT devices, different transmission resources can meet different coverage requirements.

[0177] Figure 10 is a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. A network device configures a CG resource 1010 for an intermediate node. CG resource 1010 is a resource dedicated to communication between the intermediate node and an A-IoT device. The CG resource configuration corresponding to CG resource 1010 includes second information 1012. The network device uses second information 1012 to indicate that CG resource 1010 is used for communication between the intermediate node and the A-IoT device.

[0178] In some embodiments, CG resources are resources shared by communications between intermediate nodes and A-IoT devices, and uplink transmissions between intermediate nodes and network devices.

[0179] In some embodiments, when the network device does not know whether the CG resources are used for uplink transmission of the intermediate node or for communication between the intermediate node and the A-IoT device, the network device blindly detects the uplink transmission of the intermediate node on the CG resources.

[0180] In some embodiments, when the network device knows whether the CG resources are used for uplink transmission of the intermediate node or for communication between the intermediate node and the A-IoT device, the network device detects the uplink transmission of the intermediate node on the CG resources used by the intermediate node to communicate with the A-IoT device, which can save the overhead caused by blind detection of the network device.

[0181] In some embodiments, method 2 also includes: sending first indication information to the network device through the CG resource, and communicating with the A-IoT device through the CG resource; wherein the first indication information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

[0182] The intermediate node may indicate the first indication information through a sequence or a channel, such as a sounding reference signal (SRS) or UCI carried by a PUCCH.

[0183] In some embodiments, the first indication information and the first communication information are sent in a time division multiplexing manner. The first indication information is information sent when the intermediate node communicates with the network device through the NR signal. The first communication information includes at least one of information related to the communication between the intermediate node and the network device and information related to the communication between the intermediate node and the A-IoT device.

[0184] In some embodiments, the first indication information and the first communication information are sent via frequency division multiplexing. The first indication information is information sent when the intermediate node communicates with the network device via an NR signal. The first communication information includes at least one of information related to communication between the intermediate node and the network device and information related to communication between the intermediate node and the A-IoT device.

[0185] The first indication information and the first communication information are sent through time division multiplexing or frequency division multiplexing, so that the first indication information and the first communication information do not interfere with each other.

[0186] Figure 11 shows a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. CG resources 1110 are resources shared by the communication between the intermediate node and the A-IoT device, as well as the uplink transmission between the intermediate node and the network device. When the CG resources 1110 are used for communication between the intermediate node and the A-IoT device, the intermediate node sends a first indication message 1112 to the network device via the CG resources 1110, indicating that the CG resources 1112 are used for communication between the intermediate node and the A-IoT device.

[0187] In some embodiments, the transmission resource in method 2 is an uplink CG resource or a sidelink CG resource.

[0188] The network device configures sidelink CG resources for the intermediate node for communication between the intermediate node and the A-IoT device. Sidelink CGs include Type-1 and Type-2.

[0189] In type 1 sidelink CG, the network device configures all sidelink CG transmission resources and transmission parameters for the intermediate node through Radio Resource Control (RRC) signaling.

[0190] In type 2 sidelink CG, the network device configures some transmission parameters for the intermediate node through RRC signaling, activates the sidelink CG through DCI signaling, and the DCI is used to configure the sidelink CG transmission resources.

[0191] Method 3: Obtain transmission resources based on scheduling signaling sent by network devices.

[0192] Figure 12 shows a schematic diagram of a method for acquiring transmission resources according to an exemplary embodiment of the present application. A network device sends a scheduling signaling 1212 to an intermediate node via a control resource 1210. Based on the scheduling signaling 1212, the intermediate node acquires a transmission resource 1220, which is used for communication between the intermediate node and the A-IoT device.

[0193] Figure 13 shows a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. A network device sends scheduling signaling 1312 and third information 1322 to an intermediate node. Scheduling signaling 1312, sent via control resource 1310, carries first scheduling information 1300, which is used to schedule downlink resources 1320. Based on scheduling signaling 1312, the intermediate node acquires transmission resources 1330, which are used for communication between the intermediate node and the A-IoT device.

[0194] In some embodiments, method 3 also includes: sub-step 1: receiving third information 1322 sent by the network device through the downlink resource 1320, the third information 1322 including control channel information and / or data channel information, and the control channel information and / or data channel information is information sent by the network device to the A-IoT device; sub-step 2: using the transmission resource 1330 to send the third information 1322 to the A-IoT device.

[0195] In topology 2, when a network device needs to communicate with an A-IoT device, it sends third information to the intermediate node. The third information includes control channel information and / or data channel information. The control channel information and / or data channel information are information sent by the network device to the A-IoT device. The intermediate node exchanges control channel information and / or data channel information with the A-IoT device and then sends the control channel information and / or data channel information related to the A-IoT device to the network device, thereby meeting the communication needs.

[0196] In some embodiments, method 3 further includes: obtaining first scheduling information 1300 , where the first scheduling information 1300 is used to schedule downlink resources 1320 .

[0197] In some embodiments, the first scheduling information 1300 is carried in scheduling signaling 1312 .

[0198] In some embodiments, the scheduling signaling used to schedule transmission resources and the scheduling signaling used to schedule downlink resources are the same scheduling signaling.

[0199] In some embodiments, the first scheduling signaling for scheduling transmission resources and the second scheduling signaling for scheduling downlink resources are different scheduling signalings. The first scheduling signaling and the second scheduling signaling are sent simultaneously or separately.

[0200] Figure 14 shows a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. Transmission resources 1430 are used for communication between the intermediate node and the A-IoT device. The network device sends scheduling signaling 1412 and third information 1422 to the intermediate node. In (a) of Figure 14, the downlink resource 1420 carries the second scheduling information 1400, and the second scheduling information 1400 is used to schedule the fourth uplink resource 1440. The intermediate node reports information 1442 related to the A-IoT device to the network device through the fourth uplink resource 1440. The information 1442 includes control channel information and / or data channel information.

[0201] In (b) of Figure 14, the scheduling signaling 1412 sent through the control resource 1410 carries the second scheduling information 1400, and the second scheduling information 1400 is used to schedule the fourth uplink resource 1440. The intermediate node reports information 1442 related to the A-IoT device to the network device through the fourth uplink resource 1440. The information 1442 includes control channel information and / or data channel information.

[0202] In some embodiments, method 3 also includes: obtaining second scheduling information 1400, the second scheduling information 1400 is used to schedule a fourth uplink resource 1440, and the fourth uplink resource 1440 is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the network device.

[0203] In some embodiments, the second scheduling information 1400 is carried in the downlink resource 1420 or in the scheduling signaling 1412 .

[0204] Figure 15 shows a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. A network device sends scheduling signaling 1512 and third information 1522 to an intermediate node. In Figure 15(a), downlink resources 1520 carry third scheduling information 1500, which is used to schedule transmission resources 1530. Transmission resources 1530 are used for communication between the intermediate node and the A-IoT device.

[0205] In (b) of FIG15 , the scheduling signaling 1512 sent through the control resource 1510 carries the third scheduling information 1500 , and the third scheduling information 1500 is used to schedule the transmission resource 1530 , and the transmission resource 1530 is used for communication between the intermediate node and the A-IoT device.

[0206] In some embodiments, method 3 further includes: obtaining third scheduling information 1500 , where the third scheduling information 1500 is used to schedule transmission resources 1530 .

[0207] In some embodiments, the third scheduling information 1500 is carried in the downlink resource 1520 or carried in the scheduling signaling 1512 .

[0208] The above three types of scheduling information can be used individually or in combination. For example, in some embodiments, the scheduling signaling carries the first scheduling information and the second scheduling information, and the downlink resources carry the third scheduling information; or, the scheduling signaling carries the first scheduling information, and the downlink resources carry the second scheduling information and the third scheduling information; or, the scheduling signaling carries the first scheduling information, the second scheduling information, and the third scheduling information, and other such combinations are not limited in this application.

[0209] By using the above three types of scheduling information separately or in combination, the communication needs between network devices, intermediate nodes, and A-IoT devices under different conditions can be met.

[0210] In some embodiments, when the network device schedules transmission resources, it separately schedules the transmission resources used by the intermediate node to communicate with the A-IoT device; or, it schedules the transmission resources used by the intermediate node to communicate with the A-IoT device, and schedules the fourth uplink resources used by the intermediate node to send control channel information and / or data channel information related to the A-IoT device to the network device.

[0211] In some embodiments, the transmission resource in method 3 is an uplink resource or a sidelink resource.

[0212] The network device allocates sideline resources to the intermediate node, and the sideline resources are used for communication between the intermediate node and the A-IoT device.

[0213] To sum up, the method provided in this embodiment obtains transmission resources, which are used for communication between the intermediate node and the A-IoT device, or for uplink transmission of the A-IoT device, so that the intermediate node obtains the transmission resources required to communicate with the A-IoT device, thereby meeting the communication needs.

[0214] The method provided in this embodiment also reduces blind detection of network devices by using specific transmission resources for communication between intermediate nodes and A-IoT devices, thereby reducing implementation complexity.

[0215] FIG16 shows a flowchart of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. The method is executed by an A-IoT device and includes:

[0216] Step 1610: Acquire transmission resources based on the scheduling information sent by the network device.

[0217] The transmission resources are used for communication between the A-IoT device and the network device. The method is applied to the topology structure 1 shown in FIG1 .

[0218] In some embodiments, the scheduling information is sent by the network device through the A-IoT air interface.

[0219] In some embodiments, the scheduling information is used to indicate at least one of the following: whether to send data; whether to backscatter data; time domain information of transmission resources; frequency information of transmission resources; and spreading code information of transmission resources.

[0220] A-IoT devices include A-IoT devices with active transmission capabilities and A-IoT devices with backscattering capabilities. The scheduling information indicates whether to send data and whether to backscatter data, thereby determining the capabilities of the A-IoT device.

[0221] In some embodiments, the method further includes: sending an SR, where the SR is used to request transmission resources.

[0222] In some embodiments, the transmission resources include at least one of dynamically scheduled resources and CG resources.

[0223] For an A-IoT device with active transmission capability, the A-IoT device sends data on the transmission resource and may also send an SR to the network device before sending the data to request transmission resources.

[0224] Figure 17 shows a schematic diagram of a method for acquiring transmission resources according to an exemplary embodiment of the present application. A network device sends scheduling information 1710 to an A-IoT device, and the A-IoT device acquires transmission resources 1720 based on scheduling information 1710. Prior to this, the A-IoT device may also send an SR 1700 to the network device, requesting transmission resources 1720.

[0225] In some embodiments, the A-IoT device has backscattering capability, and the method further includes: receiving a carrier signal, the carrier signal being used to carry data backscattered by the A-IoT device, and the carrier signal being used to provide transmission resources.

[0226] The carrier signal provided by the network device is equivalent to providing a CG resource. After the A-IoT device is powered and activated by the carrier signal, if there is data to be sent, the data is sent through backscattering.

[0227] Figure 18 is a schematic diagram of a method for acquiring transmission resources, according to an exemplary embodiment of the present application. A network device transmits a carrier signal 1810 to an A-IoT device, which is used to provide transmission resources 1820. When there is data to be transmitted, the A-IoT device performs backscattering. Otherwise, no backscattering is performed.

[0228] In some embodiments, the carrier signal is transmitted by the network device or a third-party carrier transmission device, and the third-party carrier transmission device is controlled by the network device.

[0229] In some embodiments, the carrier signal is also used to carry scheduling information.

[0230] The network device or third-party carrier transmission device sends scheduling information to the A-IoT device, which is used by the A-IoT device to determine whether to perform backscattering through the carrier signal. If backscattering is performed through the carrier signal, the A-IoT device is also used to determine the time domain resources and frequency domain resources for backscattering, such as the time unit for backscattering, the frequency offset of the backscattered signal relative to the carrier signal, etc.

[0231] In some embodiments, the carrier signal is a signal shared by multiple A-IoT devices.

[0232] In some embodiments, the A-IoT device uses a carrier signal for backscattering in different time domain resources according to the IDentification (ID) of the A-IoT device. Different A-IoT device IDs correspond to different time domain resources.

[0233] In some embodiments, the scheduling information carried by the carrier signal includes at least one of: backscattered time domain resources, backscattered frequency domain resources, and the ID of the A-IoT device.

[0234] In some embodiments, multiple A-IoT devices use carrier signals on the same time domain resources for backscattering, and the backscattered signals are sent via code division multiplexing.

[0235] In some embodiments, multiple A-IoT devices use carrier signals on the same time domain resources for backscattering, and the backscattered signals are sent via frequency division multiplexing.

[0236] When multiple A-IoT devices are backscattering, each A-IoT device corresponds to a different frequency domain offset.

[0237] In some embodiments, the carrier signal is a signal dedicated to each A-IoT device.

[0238] In some embodiments, the scheduling information carried by the carrier signal includes the ID of the A-IoT device. The ID of the A-IoT device is used to instruct the A-IoT device to use the corresponding carrier signal for backscattering.

[0239] Figure 19 is a schematic diagram of a method for acquiring transmission resources, according to an exemplary embodiment of the present application. A network device sends scheduling information 1910 to a third-party carrier transmission device, which controls the third-party carrier transmission device to transmit a carrier signal 1920 to an A-IoT device. Carrier signal 1920 is used to provide transmission resources 1930. When data needs to be transmitted, the A-IoT device performs backscattering and sends the data to the network device.

[0240] In some embodiments, the scheduling information is used to instruct a designated A-IoT device or a designated group of A-IoT devices to perform backscattering via a carrier signal.

[0241] In some embodiments, different A-IoT devices perform backscattering based on carrier signals in different time units; or, different A-IoT devices use different frequency offsets in backscattering based on the same carrier signal; or, different A-IoT devices use different spread spectrum code sequences in backscattering based on the same carrier signal.

[0242] Different A-IoT devices perform backscattering based on carrier signals in different time units, which can achieve time division multiplexing between different A-IoT devices; different A-IoT devices use different frequency offsets in backscattering based on the same carrier signal, which can achieve frequency division multiplexing between different A-IoT devices; different A-IoT devices use different spread spectrum code sequences in backscattering based on the same carrier signal, which can enable code division multiplexing of the backscattered signals of different A-IoT devices. Among them, spread spectrum code sequences include m sequence, Gold sequence, Walsh sequence and other sequences.

[0243] Figure 20 is a schematic diagram of a method for acquiring transmission resources provided by an exemplary embodiment of the present application. A network device sends scheduling information 2010 to a third-party carrier transmission device, which controls the third-party carrier transmission device to transmit a carrier signal 2020 to A-IoT device 1 and A-IoT device 2. Carrier signal 2020 is used to provide transmission resource 1 and transmission resource 2, corresponding to A-IoT device 1 and A-IoT device 2, respectively. When data needs to be transmitted, A-IoT device 1 and A-IoT device 2 perform backscattering and send the data to the network device.

[0244] In some embodiments, the modulation method used for communication between the network device and the A-IoT device includes at least one of: OOK; FSK; PSK.

[0245] In some embodiments, the coding method used for communication between the network device and the A-IoT device includes at least one of: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; and differential coding.

[0246] In some embodiments, the method is applicable to the scheduling of transmission resources of A-IoT devices by the intermediate nodes in the above-mentioned methods 1 to 3, that is, the intermediate nodes in methods 1 to 3 may correspond to the network devices in the method.

[0247] In summary, the method provided in this embodiment obtains transmission resources based on scheduling information sent by network devices. These transmission resources are used for communication between A-IoT devices and network devices. This enables A-IoT devices to obtain the transmission resources required to communicate with network devices, thus meeting communication needs.

[0248] FIG21 shows a flowchart of a method for configuring transmission resources provided by an exemplary embodiment of the present application. The method is executed by a network device and includes:

[0249] Step 2110: Configure transmission resources.

[0250] The transmission resources are used for communication between intermediate nodes and A-IoT devices, or for uplink transmission of A-IoT devices. Uplink transmission of A-IoT devices is the transmission of data from A-IoT devices to network devices.

[0251] In some embodiments, the method is applied to the topology 1 as shown in Figure 1, or the topology 2 as shown in Figure 2. The A-IoT device includes a device based on environmental energy, which can be a communication device used in WiFi or a cellular network. Environmental energy includes at least one of wireless radio frequency energy, solar energy, thermal energy, and mechanical energy. The network device is a device that communicates with the A-IoT device or an intermediate node, or a device that provides wireless power supply for the A-IoT device, such as an AP in WiFi or a base station in a cellular network. The intermediate node can communicate with the network device and the A-IoT device, and can also be a carrier that provides wireless power supply for the A-IoT device or is used for backscattering of the A-IoT device. In the embodiment of the present application, the intermediate node is taken as an example to illustrate.

[0252] In some embodiments, the modulation method used in the communication between the intermediate node and the A-IoT device includes at least one of: OOK; FSK; PSK.

[0253] In some embodiments, the coding method used in the communication between the intermediate node and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

[0254] In some embodiments, the modulation method used for communication between the intermediate node and the network device includes OFDM modulation.

[0255] In some embodiments, the coding method used in the communication between the intermediate node and the network device includes at least one of polar coding and LDPC coding.

[0256] In some embodiments, the method of configuring transmission resources includes at least one of the following:

[0257] Method 1: Allocate transmission resources based on the SR sent by the intermediate node;

[0258] Method 2: Configure CG resources, which are used for communication between intermediate nodes and A-IoT devices;

[0259] Method 3: Send scheduling signaling, which is used to indicate the configuration of transmission resources;

[0260] Method 4: Send fourth scheduling information, where the fourth scheduling information is used to indicate configuration of transmission resources.

[0261] Method 1: Configure transmission resources based on the SR sent by the intermediate node.

[0262] In some embodiments, method 1 includes: sub-step 1: receiving a first SR sent by an intermediate node via a first SR resource; sub-step 2: configuring a first transmission resource, where the first transmission resource is used for communication between the intermediate node and an A-IoT device; wherein the first SR is used to request a transmission resource from a network device. The first transmission resource is an uplink resource or a sidelink resource.

[0263] In some embodiments, the intermediate node requests transmission resources from the network device in the same way as requesting uplink data transmission resources. The PUCCH resources used to send SR are also the same (first SR resources). The network device does not know the purpose of the intermediate node requesting transmission resources. The network device configures a first transmission resource for communication between the intermediate node and the A-IoT device. The first transmission resource is usually a smaller resource, and for A-IoT devices, the working frequency domain bandwidth is generally small. Communicating through the first transmission resource can complete the work without wasting resources.

[0264] In some embodiments, method 1 includes: sub-step 1: receiving a first SR sent by an intermediate node through a first SR resource; sub-step 2: configuring a first transmission resource; sub-step 3: receiving a BSR reported by the intermediate node through the first transmission resource; sub-step 4: configuring a second transmission resource, the second transmission resource being used for communication between the intermediate node and the A-IoT device; wherein the first SR is used to request a transmission resource from a network device, and the second transmission resource is an uplink resource or a sidelink resource.

[0265] In some embodiments, the first transmission resource is a resource used by the intermediate node to report a BSR. The intermediate node can request a resource larger than the first transmission resource, such as a second transmission resource, from the network device through the BSR. In the case where the intermediate node is a UE, the size of the second transmission resource required by the UE is determined through the UE's implementation algorithm, so as to report the corresponding BSR. The size of the second transmission resource is related to the communication between the intermediate node and the A-IoT device. Different communications require different second transmission resources. For example, the second transmission resource required for the intermediate node to send control signaling to the A-IoT device is relatively small, and the second transmission resource required for the intermediate node to schedule the A-IoT device for uplink data transmission is relatively large.

[0266] This method reuses the related scheduling request process, does not need to define new SR resources, has low complexity and is easy to implement.

[0267] In some embodiments, method 1 includes: sub-step 1: receiving a first SR sent by an intermediate node through a first SR resource; sub-step 2: configuring a first transmission resource; sub-step 3: receiving first information reported by the intermediate node through the first transmission resource, the first information being used to indicate transmission resource demand information; sub-step 4: configuring a third transmission resource, the third transmission resource being used for communication between the intermediate node and the A-IoT device; wherein the first SR is used to request a transmission resource from a network device, and the third transmission resource is an uplink resource or a sidelink resource.

[0268] In some embodiments, the first information is used to indicate at least one of the following information: time domain resource demand information of the transmission resource; frequency domain resource demand information of the transmission resource; type of the transmission resource; type of A-IoT device.

[0269] The time domain resource requirement information for the transmission resource includes at least one of the size, location, and type of the time domain resource. The size of the time domain resource includes the number of time domain slots, or the starting time slot plus the time slot length, or the number of symbols, or the starting symbol plus the symbol length. The location of the time domain resource includes the time offset between the time when the intermediate node sends the first SR and the requested time domain resource, or the first time slot and the corresponding time slot offset value, or the first symbol and the corresponding symbol offset value, or a bit in a bitmap with a value of 1 or 0 used to represent the location of the time domain resource. The location of the time domain resource can be continuous or discontinuous. For example, the requested time domain resource can include multiple time slots, each time slot includes multiple symbols, and the locations of these time slots can be continuous or discontinuous. The types of time domain resources include: time slot, sub-time slot, symbol, symbol group, uplink time domain resource, sidelink time domain resource, etc.

[0270] The frequency domain resource requirement information for the transmission resource includes at least one of the size, location, and type of the frequency domain resource. The size of the frequency domain resource can be determined based on the capabilities of the A-IoT device or can be predefined. The location of the frequency domain resource can be one or more. The location of the frequency domain resource can include a preset location or a set of preset locations.

[0271] The type of the transmission resource is a preset type, or one or more types among multiple preconfigured types.

[0272] The type of an A-IoT device is used to indicate the capabilities of the A-IoT device, including the frequency domain resources supported by the A-IoT device.

[0273] In some embodiments, the third transmission resource is a resource determined according to scheduling signaling sent by the network device; or, the third transmission resource is part of or all of the resources in a resource pool, and the resource pool is configured by the network device.

[0274] When the network device configures a resource pool for the intermediate node, and the intermediate node requests a certain resource or certain resources in the resource pool from the network device, the first information does not need to carry the specific transmission resource requested by the intermediate node.

[0275] In some embodiments, method 1 includes: sub-step 1: receiving a second SR sent by the intermediate node through a second SR resource, where the second SR resource is an SR resource dedicated to use when the intermediate node communicates with the A-IoT device; sub-step 2: configuring a fourth transmission resource, where the fourth transmission resource is used for communication between the intermediate node and the A-IoT device.

[0276] In some embodiments, different second SR resources correspond to different types of A-IoT devices, and different types of A-IoT devices require different transmission resources; or, different second SR resources correspond to different transmission resources, and different transmission resources correspond to different types of A-IoT devices.

[0277] Exemplarily, different second SR resources correspond to different types of A-IoT devices, and different types of A-IoT devices require different time domain resource sizes and positions, and different frequency domain resource sizes and positions; or, different second SR resources correspond to different time domain resource sizes and positions, and different frequency domain resource sizes and positions, and different time domain resource sizes and positions, and different frequency domain resource sizes and positions correspond to different types of A-IoT devices.

[0278] In some embodiments, the correspondence between different second SR resources and different types of A-IoT devices is pre-set; or, the correspondence between different second SR resources and different types of A-IoT devices is configured by the network device; or, the correspondence between different second SR resources and different transmission resources is pre-set; or, the correspondence between different second SR resources and different transmission resources is configured by the network device.

[0279] Since the second SR resource is a SR resource dedicated to the communication between the intermediate node and the A-IoT device, the network device can identify the purpose of the transmission resource requested by the intermediate node and schedule appropriate transmission resources.

[0280] In some embodiments, method 1 further includes: after receiving the SR, configuring a third uplink resource; wherein the third uplink resource is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the network device.

[0281] Transmission resources and the third uplink resource are requested through SR, which meets the needs of communication between the intermediate node and the A-IoT device, and the needs of the intermediate node to report information related to the A-IoT device to the network equipment.

[0282] In some embodiments, method 1 further includes: sending SR resource configuration, where the SR resource configuration is used to indicate SR resources.

[0283] In some embodiments, sending the SR resource configuration includes: sending a first SR resource configuration, where the first SR resource configuration is used to indicate a first SR resource; or sending a second SR resource configuration, where the second SR resource configuration is used to indicate a second SR resource.

[0284] In some embodiments, the transmission resource in method 1 is an uplink resource or a sidelink resource.

[0285] The network device allocates sidelink resources to the intermediate node through dynamic scheduling, for example, using DCI format 3_0. The sidelink resources are used for communication between the intermediate node and the A-IoT device.

[0286] Method 2: Configure CG resources, which are used for communication between intermediate nodes and A-IoT devices.

[0287] In some embodiments, CG resources are resources dedicated to use when the intermediate node communicates with the A-IoT device.

[0288] In some embodiments, the CG resource configuration corresponding to the CG resource includes second information, and the second information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

[0289] When the network device configures CG resources, in order to distinguish the resources dedicated to the communication between the intermediate node and the A-IoT device, it indicates them through specified elements (such as the second information) in the relevant CG resource configuration.

[0290] In some embodiments, the relevant information of the A-IoT device corresponding to the CG resource includes at least one of the following: the type of the A-IoT device; the capability of the A-IoT device; the modulation method of the uplink transmission of the A-IoT device; and the encoding method of the uplink transmission of the A-IoT device.

[0291] In some embodiments, the type of A-IoT device corresponding to the CG resource includes: at least one of a first type A-IoT device and a second type A-IoT device, the uplink transmission of the first type A-IoT device adopts a backscattering method, and the uplink transmission of the second type A-IoT device adopts an active transmission method.

[0292] Different uplink transmission methods of A-IoT devices have different requirements for transmission resources. For example, the frequency domain bandwidth corresponding to the backscattering method can be narrower, while the frequency domain bandwidth corresponding to the active transmission method is wider because it requires sufficient guard band.

[0293] The capabilities of A-IoT devices also determine the configuration of CG resources. For example, the frequency domain-related capabilities of A-IoT devices include supporting variable frequency domain positions and bandwidths, or supporting fixed frequency domain positions and bandwidths.

[0294] In order to meet different coverage requirements, the modulation method or coding method for the uplink transmission of A-IoT devices requires different transmission resources.

[0295] In some embodiments, CG resources are resources shared by communications between intermediate nodes and A-IoT devices, and uplink transmissions between intermediate nodes and network devices.

[0296] In some embodiments, when the network device does not know whether the CG resources are used for uplink transmission of the intermediate node or for communication between the intermediate node and the A-IoT device, the network device blindly detects the uplink transmission of the intermediate node on the CG resources.

[0297] In some embodiments, when the network device knows whether the CG resources are used for uplink transmission of the intermediate node or for communication between the intermediate node and the A-IoT device, the network device detects the uplink transmission of the intermediate node on the CG resources used by the intermediate node to communicate with the A-IoT device, which can save the overhead caused by blind detection of the network device.

[0298] In some embodiments, method 2 further includes: receiving first indication information sent by the intermediate node through the CG resource; wherein the first indication information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

[0299] The intermediate node may indicate the first indication information through a sequence or a channel, such as UCI carried by an SRS or a PUCCH.

[0300] In some embodiments, the first indication information and the first communication information are sent in a time division multiplexing manner. The first indication information is information sent when the intermediate node communicates with the network device through the NR signal. The first communication information includes at least one of information related to the communication between the intermediate node and the network device and information related to the communication between the intermediate node and the A-IoT device.

[0301] In some embodiments, the first indication information and the first communication information are sent via frequency division multiplexing. The first indication information is information sent when the intermediate node communicates with the network device via an NR signal. The first communication information includes at least one of information related to communication between the intermediate node and the network device and information related to communication between the intermediate node and the A-IoT device.

[0302] The first indication information and the first communication information are sent in a time division multiplexing manner or a frequency division multiplexing manner, so that the first indication information and the first communication information do not interfere with each other.

[0303] In some embodiments, the transmission resource in method 2 is an uplink CG resource or a sidelink CG resource.

[0304] The network device configures sidelink CG resources for the intermediate node for communication between the intermediate node and the A-IoT device. Sidelink CGs include Type-1 and Type-2.

[0305] In type 1 sidelink CG, the network device configures all sidelink CG transmission resources and transmission parameters for the intermediate node through Radio Resource Control (RRC) signaling.

[0306] In type 2 sidelink CG, the network device configures some transmission parameters for the intermediate node through RRC signaling, activates the sidelink CG through DCI signaling, and the DCI is used to configure the sidelink CG transmission resources.

[0307] Method 3: Send scheduling signaling, which is used to indicate the configuration of transmission resources.

[0308] In some embodiments, method 3 further includes: sending third information;

[0309] The third information includes control channel information and / or data channel information, which is information sent by the network device to the A-IoT device. The third information is received by the intermediate node using downlink resources and then sent to the A-IoT device using transmission resources.

[0310] In topology 2, when a network device needs to communicate with an A-IoT device, it sends third information to the intermediate node. The third information includes control channel information and / or data channel information. The intermediate node then exchanges the control channel information and / or data channel information with the A-IoT device. The intermediate node can then send the control channel information and / or data channel information related to the A-IoT device to the network device. The network device can also send scheduling information to the intermediate node during the process of sending the third information.

[0311] In some embodiments, method 3 further includes: sending first scheduling information, where the first scheduling information is used to schedule downlink resources.

[0312] In some embodiments, the first scheduling information is carried in scheduling signaling.

[0313] In some embodiments, the scheduling signaling used to schedule transmission resources and the scheduling signaling used to schedule downlink resources are the same scheduling signaling.

[0314] In some embodiments, the first scheduling signaling for scheduling transmission resources and the second scheduling signaling for scheduling downlink resources are different scheduling signalings. The first scheduling signaling and the second scheduling signaling are sent simultaneously or separately.

[0315] In some embodiments, method 3 also includes: sending second scheduling information, the second scheduling information is used to schedule a fourth uplink resource, and the fourth uplink resource is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the network device.

[0316] In some embodiments, the second scheduling information is carried in downlink resources or in scheduling signaling.

[0317] In some embodiments, method 3 further includes: sending third scheduling information, where the third scheduling information is used to schedule transmission resources.

[0318] In some embodiments, the third scheduling information is carried in downlink resources or in scheduling signaling.

[0319] The above three types of scheduling information can be used individually or in combination. For example, in some embodiments, the scheduling signaling carries the first scheduling information and the second scheduling information, and the downlink resources carry the third scheduling information; or, the scheduling signaling carries the first scheduling information, and the downlink resources carry the second scheduling information and the third scheduling information; or, the scheduling signaling carries the first scheduling information, the second scheduling information, and the third scheduling information, and other such combinations are not limited in this application.

[0320] By using the above three types of scheduling information separately or in combination, the communication needs between network devices, intermediate nodes, and A-IoT devices under different conditions can be met.

[0321] In some embodiments, when the network device schedules transmission resources, it separately schedules the transmission resources used by the intermediate node to communicate with the A-IoT device; or, it schedules the transmission resources used by the intermediate node to communicate with the A-IoT device, and schedules the fourth uplink resources used by the intermediate node to send control channel information and / or data channel information related to the A-IoT device to the network device.

[0322] In some embodiments, the transmission resource in method 3 is an uplink resource or a sidelink resource.

[0323] The network device allocates sideline resources to the intermediate node, and the sideline resources are used for communication between the intermediate node and the A-IoT device.

[0324] Method 4: Send fourth scheduling information, where the fourth scheduling information is used to indicate configuration of transmission resources.

[0325] The transmission resources are used for communication between the A-IoT device and the network device, and the method is applied to the topology structure 1 shown in FIG1 .

[0326] In some embodiments, the fourth scheduling information is sent by the network device through the A-IoT air interface.

[0327] In some embodiments, the fourth scheduling information is used to indicate at least one of the following: whether to send data; whether to backscatter data; time domain information of transmission resources; frequency information of transmission resources; and spreading code information of transmission resources.

[0328] A-IoT devices include A-IoT devices with active transmission capabilities and A-IoT devices with backscattering capabilities. The scheduling information indicates whether to send data and whether to backscatter data, thereby determining the capabilities of the A-IoT device.

[0329] In some embodiments, method 4 further includes: receiving an SR sent by the A-IoT device, where the SR is used to request transmission resources.

[0330] In some embodiments, the transmission resources include at least one of dynamically scheduled resources and CG resources.

[0331] For an A-IoT device with active transmission capability, the A-IoT device sends data on the transmission resource and may also send an SR to the network device before sending the data to request transmission resources.

[0332] In some embodiments, the A-IoT device has a backscattering capability, and method 4 further includes: sending a carrier signal, where the carrier signal is used to carry data backscattered by the A-IoT device, and the carrier signal is used to provide transmission resources.

[0333] The carrier signal provided by the network device is equivalent to providing a CG resource. After the A-IoT device is powered and activated by the carrier signal, if there is data to be sent, the data is sent through backscattering.

[0334] In some embodiments, the carrier signal is transmitted by the network device or a third-party carrier transmission device, and the third-party carrier transmission device is controlled by the network device.

[0335] In some embodiments, the carrier signal is also used to carry fourth scheduling information.

[0336] The network device or third-party carrier transmission device sends scheduling information to the A-IoT device, which is used by the A-IoT device to determine whether to perform backscattering through the carrier signal. If backscattering is performed through the carrier signal, the A-IoT device is also used to determine the time domain resources and frequency domain resources for backscattering, such as the time unit for backscattering, the frequency offset of the backscattered signal relative to the carrier signal, etc.

[0337] In some embodiments, the carrier signal is a signal shared by multiple A-IoT devices.

[0338] In some embodiments, the A-IoT device uses a carrier signal for backscattering in different time domain resources according to the IDentification (ID) of the A-IoT device. Different A-IoT device IDs correspond to different time domain resources.

[0339] In some embodiments, the fourth scheduling information carried by the carrier signal includes at least one of: backscattered time domain resources, backscattered frequency domain resources, and the ID of the A-IoT device.

[0340] In some embodiments, multiple A-IoT devices use carrier signals on the same time domain resources for backscattering, and the backscattered signals are sent via code division multiplexing.

[0341] In some embodiments, multiple A-IoT devices use carrier signals on the same time domain resources for backscattering, and the backscattered signals are sent via frequency division multiplexing.

[0342] When multiple A-IoT devices are backscattering, each A-IoT device corresponds to a different frequency domain offset.

[0343] In some embodiments, the carrier signal is a signal dedicated to each A-IoT device.

[0344] In some embodiments, the fourth scheduling information carried by the carrier signal includes an ID of the A-IoT device. The ID of the A-IoT device is used to instruct the A-IoT device to use the corresponding carrier signal for backscattering.

[0345] In some embodiments, the fourth scheduling information is used to instruct a designated A-IoT device or a designated A-IoT device group to perform backscattering via a carrier signal.

[0346] In some embodiments, different A-IoT devices perform backscattering based on carrier signals in different time units; or, different A-IoT devices use different frequency offsets in backscattering based on the same carrier signal; or, different A-IoT devices use different spread spectrum code sequences in backscattering based on the same carrier signal.

[0347] Different A-IoT devices perform backscattering based on carrier signals in different time units, which can achieve time division multiplexing between different A-IoT devices; different A-IoT devices use different frequency offsets in backscattering based on the same carrier signal, which can achieve frequency division multiplexing between different A-IoT devices; different A-IoT devices use different spread spectrum code sequences in backscattering based on the same carrier signal, which can enable code division multiplexing of the backscattered signals of different A-IoT devices. Among them, spread spectrum code sequences include m sequence, Gold sequence, Walsh sequence and other sequences.

[0348] In some embodiments, the modulation method used for communication between the network device and the A-IoT device includes at least one of: OOK; FSK; PSK.

[0349] In some embodiments, the coding method used for communication between the network device and the A-IoT device includes at least one of: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; and differential coding.

[0350] For details not described in detail in this embodiment, please refer to the embodiments corresponding to the intermediate device and the embodiments corresponding to the A-IoT device above, which will not be repeated here.

[0351] To summarize, the method provided in this embodiment configures transmission resources, which are used for communication between intermediate nodes and A-IoT devices, or for uplink transmission of A-IoT devices, so that intermediate nodes obtain the transmission resources required to communicate with A-IoT devices, or A-IoT devices obtain the transmission resources required to communicate with network devices, thereby meeting communication needs.

[0352] The method provided in this embodiment also reduces blind detection of network devices by using specific transmission resources for communication between intermediate nodes and A-IoT devices, thereby reducing implementation complexity.

[0353] In the above embodiments, the embodiment corresponding to FIG4 , the embodiment corresponding to FIG16 , and the embodiment corresponding to FIG21 may be implemented individually or in combination, and this application does not impose any limitation thereto.

[0354] Figure 22 shows a block diagram of a transmission resource acquisition device provided by an exemplary embodiment of the present application. The device can be implemented as an intermediate node or as part of an intermediate node through software or hardware or a combination of both. The device includes at least one of a receiving module 2210 and a sending module 2220.

[0355] The receiving module 2210 is configured to obtain transmission resources. The transmission resources are used for communication between the transmission resource acquisition device and the A-IoT device, or for uplink transmission of the A-IoT device. Uplink transmission of the A-IoT device is the transmission of data from the A-IoT device to the network device.

[0356] In a possible design of this embodiment, the modulation method used for communication between the transmission resource acquisition device and the A-IoT device includes at least one of: on-off keying (OOK); frequency shift keying (FSK); and phase shift keying (PSK).

[0357] In a possible design of this embodiment, the coding method used in the communication between the transmission resource acquisition device and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

[0358] In a possible design of this embodiment, the modulation mode adopted in the communication between the transmission resource acquisition device and the network device includes Orthogonal Frequency Division Multiplexing (OFDM) modulation.

[0359] In a possible design of this embodiment, the coding method used in the communication between the transmission resource acquisition device and the network device includes: at least one of polar code and low-density parity check code (LDPC) coding.

[0360] In a possible design of this embodiment, the method in which the receiving module 2210 obtains the transmission resource includes at least one of the following:

[0361] Method 1: Obtain transmission resources through SR;

[0362] Method 2: Acquire CG resources, which are used for communication between the acquisition device for transmitting resources and the A-IoT device;

[0363] Method 3: Obtain transmission resources based on scheduling signaling sent by network devices.

[0364] Method 1: Obtain transmission resources through SR.

[0365] In a possible design of this embodiment, the receiving module 2210 is used to obtain transmission resources through SR.

[0366] In a possible design of this embodiment, the sending module 2220 is used to send the first SR through the first SR resource; the receiving module 2210 is used to obtain the first transmission resource configured by the network device, and the first transmission resource is used for communication between the transmission resource acquisition device and the A-IoT device.

[0367] The first SR is used to request a network device to obtain a transmission resource, and the first transmission resource is a resource configured by the network device after receiving the first SR. The first transmission resource is an uplink resource or a sidelink resource.

[0368] In a possible design of this embodiment, the transmission resource acquisition device requests transmission resources from the network device in the same way as requesting uplink data transmission resources. The PUCCH resources used to send SR are also the same (first SR resources). The network device does not know the purpose of the transmission resource acquisition device requesting the transmission resource. The network device configures a first transmission resource for communication between the transmission resource acquisition device and the A-IoT device. The first transmission resource is usually a smaller resource, and for A-IoT devices, the working frequency domain bandwidth is generally also small. Communicating through the first transmission resource can complete the work without wasting resources.

[0369] In one possible design of this embodiment, a sending module 2220 is configured to send a first SR using a first SR resource; a receiving module 2210 is configured to obtain a first uplink resource configured by the network device; a sending module 2220 is configured to report a BSR using the first uplink resource; and a receiving module 2210 is configured to obtain a second transmission resource configured by the network device, the second transmission resource being used for communication between a transmission resource acquisition device and an A-IoT device. The first SR is used to request transmission resources from the network device, the first uplink resource is a resource configured by the network device after receiving the first SR, and the second transmission resource is an uplink resource or a sidelink resource.

[0370] In a possible design of this embodiment, the first uplink resource is a resource used to report a BSR, and the transmission resource acquisition device can request a resource larger than the first uplink resource, such as a second transmission resource, from the network device through the BSR. In the case that the transmission resource acquisition device is a UE, the size of the second transmission resource required by the UE is determined through the implementation algorithm of the UE, so as to report the corresponding BSR. The size of the second transmission resource is related to the communication between the transmission resource acquisition device and the A-IoT device. Different communications require different second transmission resources. For example, the second transmission resource required by the transmission resource acquisition device to send control signaling to the A-IoT device is smaller, and the second transmission resource required by the transmission resource acquisition device to schedule the A-IoT device to perform uplink data transmission is larger.

[0371] This method reuses the related scheduling request process, does not need to define new SR resources, has low complexity and is easy to implement.

[0372] In one possible design of this embodiment, a sending module 2220 is configured to send a first SR via a first SR resource; a receiving module 2210 is configured to obtain a second uplink resource configured by a network device; the sending module 2220 is configured to report first information via the second uplink resource, where the first information is used to indicate transmission resource demand information; and the receiving module 2210 is configured to obtain a third transmission resource configured by the network device, where the third transmission resource is used for communication between the transmission resource acquisition device and the A-IoT device. The first SR is used to request transmission resources from the network device, the second uplink resource is a resource configured by the network device after receiving the first SR, and the third transmission resource is an uplink resource or a sidelink resource.

[0373] In a possible design of this embodiment, the first information is used to indicate at least one of the following information: demand information of time domain resources of transmission resources; demand information of frequency domain resources of transmission resources; type of transmission resources; type of A-IoT device.

[0374] The time domain resource requirement information for the transmission resource includes at least one of the size, location, and type of the time domain resource. The size of the time domain resource includes the number of time domain slots, or the starting time slot plus the time slot length, or the number of symbols, or the starting symbol plus the symbol length. The location of the time domain resource includes the time offset between the time when the transmission resource acquisition device sends the first SR and the requested time domain resource, or the first time slot and the corresponding time slot offset value, or the first symbol and the corresponding symbol offset value, or a bit in a bitmap with a value of 1 or 0 used to represent the location of the time domain resource. The location of the time domain resource can be continuous or discontinuous. For example, the requested time domain resource can include multiple time slots, each time slot includes multiple symbols, and the locations of these time slots can be continuous or discontinuous. The types of time domain resources include: time slot, sub-time slot, symbol, symbol group, uplink time domain resource, sidelink time domain resource, etc.

[0375] The frequency domain resource requirement information for the transmission resource includes at least one of the size, location, and type of the frequency domain resource. The size of the frequency domain resource can be determined based on the capabilities of the A-IoT device or can be predefined. The location of the frequency domain resource can be one or more. The location of the frequency domain resource can include a preset location or a set of preset locations.

[0376] The type of the transmission resource is a preset type, or one or more types among multiple preconfigured types.

[0377] The type of an A-IoT device is used to indicate the capabilities of the A-IoT device, including the frequency domain resources supported by the A-IoT device.

[0378] By indicating the demand information of transmission resources through the first information, transmission resources can be requested more accurately, which is in line with the working scenario of the A-IoT device.

[0379] In a possible design of this embodiment, the third transmission resource is a resource determined based on the scheduling signaling sent by the network device; or, the third transmission resource is part of or all of the resources in a resource pool, and the resource pool is configured by the network device.

[0380] When the network device configures a resource pool for the transmission resource acquisition device, and the transmission resource acquisition device requests a certain resource or certain resources in the resource pool from the network device, the first information does not need to carry the specific transmission resource requested by the transmission resource acquisition device.

[0381] In a possible design of this embodiment, the sending module 2220 is configured to send a second SR through a second SR resource, where the second SR resource is an SR resource dedicated to the communication between the transmission resource acquisition device and the A-IoT device;

[0382] The receiving module 2210 is used to obtain the fourth transmission resource configured by the network device, and the fourth transmission resource is used for communication between the transmission resource acquisition device and the A-IoT device.

[0383] In one possible design of this embodiment, different second SR resources correspond to different types of A-IoT devices, and different types of A-IoT devices require different transmission resources; or, different second SR resources correspond to different transmission resources, and different transmission resources correspond to different types of A-IoT devices.

[0384] Exemplarily, different second SR resources correspond to different types of A-IoT devices, and different types of A-IoT devices require different time domain resource sizes and positions, and different frequency domain resource sizes and positions; or, different second SR resources correspond to different time domain resource sizes and positions, and different frequency domain resource sizes and positions, and different time domain resource sizes and positions, and different frequency domain resource sizes and positions correspond to different types of A-IoT devices.

[0385] In one possible design of this embodiment, the correspondence between different second SR resources and different types of A-IoT devices is pre-set; or, the correspondence between different second SR resources and different types of A-IoT devices is configured by the network device; or, the correspondence between different second SR resources and different transmission resources is pre-set; or, the correspondence between different second SR resources and different transmission resources is configured by the network device.

[0386] Since the second SR resource is a SR resource dedicated to the transmission resource acquisition device used when communicating with the A-IoT device, the network device can identify the purpose of the transmission resource requested by the transmission resource acquisition device, thereby scheduling appropriate transmission resources.

[0387] In a possible design of this embodiment, the receiving module 2210 is used to obtain a third uplink resource; wherein the third uplink resource is a resource configured by the network device after receiving the SR, and the third uplink resource is used for the transmission resource acquisition device to report control channel information and / or data channel information related to the A-IoT device to the network device.

[0388] The transmission resources and the third uplink resources are requested through SR, which meets the needs of communication between the transmission resource acquisition device and the A-IoT device, and the needs of the transmission resource acquisition device to report information related to the A-IoT device to the network device.

[0389] In a possible design of this embodiment, the receiving module 2210 is further used to receive SR resource configuration, and the SR resource configuration is used to indicate SR resources.

[0390] In a possible design of this embodiment, the receiving module 2210 is used to receive a first SR resource configuration, where the first SR resource configuration is used to indicate a first SR resource; or to receive a second SR resource configuration, where the second SR resource configuration is used to indicate a second SR resource.

[0391] In a possible design of this embodiment, the transmission resource in method 1 is an uplink resource or a sidelink resource.

[0392] The network device allocates sideline resources to the transmission resource acquisition device through dynamic scheduling, for example, through DCI format 3_0. The sideline resources are used for communication between the transmission resource acquisition device and the A-IoT device.

[0393] Method 2: Acquire CG resources, which are used for communication between the acquisition device for transmitting resources and the A-IoT device.

[0394] In a possible design of this embodiment, the receiving module 2210 is used to obtain CG resources, and the CG resources are used for communication between the acquisition device for transmitting resources and the A-IoT device.

[0395] In a possible design of this embodiment, the CG resource is a resource used by the acquisition device dedicated to transmission resources when communicating with the A-IoT device.

[0396] In a possible design of this embodiment, the CG resource configuration corresponding to the CG resource includes second information, and the second information is used to indicate that the CG resource is used for communication between the acquisition device for transmitting the resource and the A-IoT device.

[0397] When the network device configures CG resources, in order to distinguish the resources used by the acquisition device dedicated to transmission resources and the resources used when communicating with the A-IoT device, it is indicated through a specified element (such as the second information) in the relevant CG resource configuration.

[0398] In a possible design of this embodiment, the relevant information of the A-IoT device corresponding to the CG resource includes at least one of the following: the type of the A-IoT device; the capability of the A-IoT device; the modulation method of the uplink transmission of the A-IoT device; and the encoding method of the uplink transmission of the A-IoT device.

[0399] In a possible design of this embodiment, the types of A-IoT devices corresponding to CG resources include: at least one of first-type A-IoT devices and second-type A-IoT devices, the uplink transmission of the first-type A-IoT devices adopts a backscattering method, and the uplink transmission of the second-type A-IoT devices adopts an active transmission method.

[0400] Different uplink transmission methods of A-IoT devices have different requirements for transmission resources. For example, the frequency domain bandwidth corresponding to the backscattering method can be narrower, while the frequency domain bandwidth corresponding to the active transmission method is wider because it requires sufficient guard band.

[0401] The capabilities of A-IoT devices also determine the configuration of CG resources. For example, the frequency domain-related capabilities of A-IoT devices include supporting variable frequency domain positions and bandwidths, or supporting fixed frequency domain positions and bandwidths.

[0402] In order to meet different coverage requirements, the modulation method or coding method for the uplink transmission of A-IoT devices requires different transmission resources.

[0403] In a possible design of this embodiment, the CG resource is a resource shared by the communication between the transmission resource acquisition device and the A-IoT device, and the uplink transmission between the transmission resource acquisition device and the network device.

[0404] In a possible design of this embodiment, when the network device does not know whether the CG resource is used for uplink transmission of the transmission resource acquisition device, or is used for the transmission resource acquisition device to communicate with the A-IoT device, the network device blindly detects the uplink transmission of the transmission resource acquisition device on the CG resource.

[0405] In a possible design of this embodiment, when the network device knows whether the CG resource is used for uplink transmission of the transmission resource acquisition device, or is used for the transmission resource acquisition device to communicate with the A-IoT device, the network device detects the uplink transmission of the transmission resource acquisition device on the CG resource used by the transmission resource acquisition device to communicate with the A-IoT device, which can save the overhead caused by blind detection of the network device.

[0406] In a possible design of this embodiment, the sending module 2220 is also used to send a first indication message to the network device through the CG resource, and to communicate with the A-IoT device through the CG resource; wherein the first indication information is used to indicate that the CG resource is used for communication between the acquisition device for transmitting the resource and the A-IoT device.

[0407] The transmission resource acquisition device may indicate the first indication information through a sequence or channel, such as a sounding reference signal (SRS) or UCI carried by a PUCCH.

[0408] In a possible design of this embodiment, the first indication information and the first communication information are sent in a time division multiplexing manner. The first indication information is information sent when the intermediate node communicates with the network device through the NR signal. The first communication information includes at least one of information related to the communication between the intermediate node and the network device and information related to the communication between the intermediate node and the A-IoT device.

[0409] In a possible design of this embodiment, the first indication information and the first communication information are sent via frequency division multiplexing. The first indication information is information sent when the intermediate node communicates with the network device via an NR signal. The first communication information includes at least one of information related to communication between the intermediate node and the network device and information related to communication between the intermediate node and the A-IoT device.

[0410] The first indication information and the first communication information are sent through time division multiplexing or frequency division multiplexing, so that the first indication information and the first communication information do not interfere with each other.

[0411] In a possible design of this embodiment, the transmission resource in method 2 is an uplink CG resource or a sidelink CG resource.

[0412] The network device configures a sidelink CG resource for the transmission resource acquisition device, which is used for communication between the transmission resource acquisition device and the A-IoT device. Sidelink CGs include: Type-1 sidelink CGs and Type-2 sidelink CGs.

[0413] In type 1 sidelink CG, the network device configures all sidelink CG transmission resources and transmission parameters for the transmission resource acquisition device through radio resource control (RRC) signaling.

[0414] In type 2 sidelink CG, the network device configures some transmission parameters for the transmission resource acquisition device through RRC signaling, activates the sidelink CG through DCI signaling, and the DCI is used to configure the sidelink CG transmission resources.

[0415] Method 3: Obtain transmission resources based on scheduling signaling sent by network devices.

[0416] In a possible design of this embodiment, the receiving module 2210 is used to obtain transmission resources based on scheduling signaling sent by the network device.

[0417] In a possible design of this embodiment, the receiving module 2210 is used to receive third information sent by the network device through downlink resources, where the third information includes control channel information and / or data channel information, and the control channel information and / or data channel information is information sent by the network device to the A-IoT device; the sending module 2220 is used to use transmission resources to send the third information to the A-IoT device.

[0418] In topology 2, when a network device needs to communicate with an A-IoT device, it sends third information to the transmission resource acquisition device. The third information includes control channel information and / or data channel information. The control channel information and / or data channel information are information sent by the network device to the A-IoT device. The transmission resource acquisition device will exchange the control channel information and / or data channel information with the A-IoT device, and then the transmission resource acquisition device can send the control channel information and / or data channel information related to the A-IoT device to the network device.

[0419] In a possible design of this embodiment, the receiving module 2210 is used to obtain first scheduling information, and the first scheduling information is used to schedule downlink resources.

[0420] In a possible design of this embodiment, the first scheduling information is carried in the scheduling signaling.

[0421] In a possible design of this embodiment, the scheduling signaling used to schedule transmission resources and the scheduling signaling used to schedule downlink resources are the same scheduling signaling.

[0422] In a possible design of this embodiment, the first scheduling signaling for scheduling transmission resources and the second scheduling signaling for scheduling downlink resources are different scheduling signalings. The first scheduling signaling and the second scheduling signaling are sent simultaneously or separately.

[0423] In a possible design of this embodiment, the receiving module 2210 is used to obtain second scheduling information, the second scheduling information is used to schedule a fourth uplink resource, and the fourth uplink resource is used for the transmission resource acquisition device to report control channel information and / or data channel information related to the A-IoT device to the network device.

[0424] In a possible design of this embodiment, the second scheduling information is carried in the downlink resources or in the scheduling signaling.

[0425] In a possible design of this embodiment, the receiving module 2210 is used to obtain third scheduling information, and the third scheduling information is used to schedule transmission resources 1530.

[0426] In a possible design of this embodiment, the third scheduling information is carried in downlink resource 1, or carried in scheduling signaling 1.

[0427] The above three types of scheduling information can be used individually or in combination. For example, in one possible design of this embodiment, the scheduling signaling carries the first scheduling information and the second scheduling information, and the downlink resources carry the third scheduling information; or, the scheduling signaling carries the first scheduling information, and the downlink resources carry the second scheduling information and the third scheduling information; or, the scheduling signaling carries the first scheduling information, the second scheduling information, and the third scheduling information, and other such combinations are not limited in this application.

[0428] By using the above three types of scheduling information separately or in combination, the communication needs between network devices, transmission resource acquisition devices, and A-IoT devices under different conditions can be met.

[0429] In a possible design of this embodiment, when the network device schedules transmission resources, it separately schedules the transmission resources used by the transmission resource acquisition device to communicate with the A-IoT device; or, it schedules the transmission resources used by the transmission resource acquisition device to communicate with the A-IoT device, and schedules the fourth uplink resources used by the transmission resource acquisition device to send control channel information and / or data channel information related to the A-IoT device to the network device.

[0430] In a possible design of this embodiment, the transmission resource in method 3 is an uplink resource or a sidelink resource.

[0431] The network device allocates side resources to the transmission resource acquisition device, and the side resources are used for communication between the transmission resource acquisition device and the A-IoT device.

[0432] In this embodiment, the receiving module 2210 can be split into at least one receiving submodule, each receiving submodule is used to perform at least one of the above-mentioned receiving steps, such as a first receiving submodule, a second receiving submodule, and a third receiving submodule. The first receiving submodule is used to obtain transmission resources through SR, the second receiving submodule is used to obtain CG resources, and the third receiving submodule is used to obtain transmission resources based on the scheduling signaling sent by the network device; or the first receiving submodule is used to obtain CG resources, the second receiving submodule is used to obtain transmission resources based on the scheduling signaling sent by the network device, and the third receiving submodule is used to obtain transmission resources through SR; or the first receiving submodule is used to obtain transmission resources based on the scheduling signaling sent by the network device, the second receiving submodule is used to obtain transmission resources through SR, and the third receiving submodule is used to obtain CG resources; this embodiment does not limit the functions of different receiving submodules.

[0433] In this embodiment, the sending module 2220 can be divided into at least one sending submodule, each of which is used to perform at least one of the above-mentioned sending steps, such as a first sending submodule, a second sending submodule, a third sending submodule, and a fourth sending submodule. The first sending submodule is used to send a first SR through a first SR resource, the second sending submodule is used to send a second SR through a second SR resource, the third sending submodule is used to send a first indication message to a network device through a CG resource, and the fourth sending submodule is used to send a third message to an A-IoT device using a transmission resource; or the first sending submodule is used to send a second SR through a second SR resource, the second sending submodule is used to send a first indication message to a network device through a CG resource, the third sending submodule is used to send a third message to an A-IoT device using a transmission resource, and the fourth sending submodule is used to send the first SR through the first SR resource; or the first sending submodule is used to send a first indication message to a network device through a CG resource, the second sending submodule is used to send a third message to an A-IoT device using a transmission resource, the third sending submodule is used to send the first SR through the first SR resource, and the fourth sending submodule is used to send the second SR through the second SR resource. This embodiment does not limit the functions of different sending submodules.

[0434] This embodiment is described by taking one receiving module 2210 and one sending module 2220 as an example, and the number of the receiving modules 2210 and the sending modules 2220 is not limited.

[0435] For an introduction to the functions of the receiving module 2210 , please refer to the content of step 410 in the embodiment of FIG. 4 .

[0436] For an introduction to the functions of the sending module 2220 , please refer to the content of step 410 in the embodiment of FIG. 4 .

[0437] Figure 23 shows a block diagram of a transmission resource acquisition device provided by an exemplary embodiment of the present application. The device can be implemented as an A-IoT device or as a part of an A-IoT device through software or hardware or a combination of both. The device includes at least one of a receiving module 2310 and a sending module 2320.

[0438] The receiving module 2310 is configured to obtain transmission resources based on the scheduling information sent by the network device;

[0439] The transmission resource is used for communication between the transmission resource acquisition device and the network device. The device is applied to the topology structure 1 shown in FIG1 .

[0440] In a possible design of this embodiment, the scheduling information is sent by the network device through the A-IoT air interface.

[0441] In a possible design of this embodiment, the scheduling information is used to indicate at least one of the following: whether to send data; whether to backscatter data; time domain information of the transmission resource; frequency information of the transmission resource; and spread spectrum code information of the transmission resource.

[0442] The transmission resource acquisition device includes a transmission resource acquisition device with active transmission capability and a transmission resource acquisition device with backscattering capability. The capabilities of the transmission resource acquisition device are determined by indicating whether to send data and whether to backscatter data through scheduling information.

[0443] In a possible design of this embodiment, the sending module 2320 is used to send SR, which is used to request transmission resources.

[0444] In a possible design of this embodiment, the transmission resources include at least one of dynamic scheduling resources and CG resources.

[0445] For a transmission resource acquisition device with active transmission capability, the transmission resource acquisition device sends data on the transmission resource, and may also send an SR to the network device before sending the data to request the transmission resource.

[0446] In a possible design of this embodiment, the transmission resource acquisition device has backscattering capability, and the receiving module 2310 is also used to receive a carrier signal, which is used to carry data backscattered by the transmission resource acquisition device, and the carrier signal is used to provide transmission resources.

[0447] The carrier signal provided by the network equipment is equivalent to providing a CG resource. After the transmission resource acquisition device is powered and activated by the carrier signal, if there is data to be sent, the data is sent through backscattering.

[0448] In a possible design of this embodiment, the carrier signal is sent by the network device or a third-party carrier sending device, and the third-party carrier sending device is controlled by the network device.

[0449] In a possible design of this embodiment, the carrier signal is also used to carry scheduling information.

[0450] The network device or the third-party carrier transmitting device sends the scheduling information to the transmission resource acquisition device, which is used by the transmission resource acquisition device to determine whether backscattering is performed through the carrier signal. If backscattering is performed through the carrier signal, the transmission resource acquisition device is also used to determine the time domain resources and frequency domain resources of the backscattering, such as the time unit for backscattering, the frequency offset of the backscattering signal relative to the carrier signal, etc.

[0451] In a possible design of this embodiment, the carrier signal is a signal shared by multiple transmission resource acquisition devices.

[0452] In one possible design of this embodiment, the transmission resource acquisition device uses a carrier signal for backscattering in different time domain resources according to an identification (ID) of the transmission resource acquisition device. Different transmission resource acquisition device IDs correspond to different time domain resources.

[0453] In a possible design of this embodiment, the scheduling information carried by the carrier signal includes: backscattered time domain resources, backscattered frequency domain resources, and at least one of the ID of the transmission resource acquisition device.

[0454] In a possible design of this embodiment, multiple transmission resource acquisition devices use carrier signals on the same time domain resources for backscattering, and the backscattered signals are sent in a code division multiplexing manner.

[0455] In a possible design of this embodiment, multiple transmission resource acquisition devices use carrier signals on the same time domain resources for backscattering, and the backscattered signals are sent in a frequency division multiplexing manner.

[0456] When multiple transmission resource acquisition devices are backscattering, each transmission resource acquisition device corresponds to a different frequency domain offset.

[0457] In a possible design of this embodiment, the carrier signal is a signal dedicated to the acquisition device of each transmission resource.

[0458] In a possible design of this embodiment, the scheduling information carried by the carrier signal includes the ID of the transmission resource acquisition device. The ID of the transmission resource acquisition device is used to instruct the transmission resource acquisition device to use the corresponding carrier signal for backscattering.

[0459] In a possible design of this embodiment, different transmission resource acquisition devices are based on carrier signals and perform backscattering in different time units; or, different transmission resource acquisition devices are based on the same carrier signal and use different frequency offsets in backscattering; or, different transmission resource acquisition devices are based on the same carrier signal and use different spread spectrum code sequences in backscattering.

[0460] Different transmission resource acquisition devices are based on carrier signals and perform backscattering in different time units, which can realize time division multiplexing between different transmission resource acquisition devices; different transmission resource acquisition devices are based on the same carrier signal and use different frequency offsets in backscattering, which can realize frequency division multiplexing between different transmission resource acquisition devices; different transmission resource acquisition devices are based on the same carrier signal and use different spread spectrum code sequences in backscattering, which can make the backscattered signals of different transmission resource acquisition devices code division multiplexing, wherein the spread spectrum code sequence includes m sequence, Gold sequence, Walsh sequence and other sequences.

[0461] In a possible design of this embodiment, the modulation method used in the communication between the network device and the transmission resource acquisition device includes at least one of: OOK; FSK; PSK.

[0462] In a possible design of this embodiment, the coding method used in the communication between the network device and the transmission resource acquisition device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

[0463] In this embodiment, the receiving module 2310 can be split into at least one receiving submodule, each of which is configured to perform at least one of the aforementioned receiving steps, such as a first receiving submodule and a second receiving submodule. The first receiving submodule is configured to acquire transmission resources based on scheduling information sent by a network device, and the second receiving submodule is configured to receive a carrier signal; alternatively, the first receiving submodule is configured to receive a carrier signal, and the second receiving submodule is configured to acquire transmission resources based on scheduling information sent by a network device. This embodiment does not limit the functions of the different receiving submodules.

[0464] This embodiment is described by taking one receiving module 2310 and one sending module 2320 as an example, and the number of the receiving modules 2310 and the sending modules 2320 is not limited.

[0465] For an introduction to the functions of the receiving module 2310 , please refer to the contents of step 1610 in the embodiment of FIG16 .

[0466] For an introduction to the functions of the sending module 2320, please refer to the content of step 1610 in the embodiment of FIG16 .

[0467] Figure 24 shows a block diagram of a transmission resource configuration device provided by an exemplary embodiment of the present application. The device can be implemented as a network device or as a part of a network device through software or hardware or a combination of both. The device includes at least one of a sending module 2410 and a receiving module 2420.

[0468] Transmitting module 2410 is used to configure transmission resources. Transmission resources are used for communication between intermediate nodes and A-IoT devices, or for uplink transmission of A-IoT devices. Uplink transmission of A-IoT devices is the transmission of data from the A-IoT devices to the configuration device of the transmission resources.

[0469] In a possible design of this embodiment, the modulation mode used in the communication between the intermediate node and the A-IoT device includes at least one of OOK, FSK, and PSK.

[0470] In a possible design of this embodiment, the coding method used in the communication between the intermediate node and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

[0471] In a possible design of this embodiment, the modulation method used in the communication between the intermediate node and the transmission resource configuration device includes OFDM modulation.

[0472] In a possible design of this embodiment, a coding scheme used in communication between the intermediate node and the transmission resource configuration device includes at least one of polar coding and LDPC coding.

[0473] In one possible design of this embodiment, the method in which the sending module 2410 configures transmission resources includes at least one of the following:

[0474] Method 1: Allocate transmission resources based on the SR sent by the intermediate node;

[0475] Method 2: Configure CG resources, which are used for communication between intermediate nodes and A-IoT devices;

[0476] Method 3: Send scheduling signaling, which is used to indicate the configuration of transmission resources;

[0477] Method 4: Send fourth scheduling information, where the fourth scheduling information is used to indicate configuration of transmission resources.

[0478] Method 1: Configure transmission resources based on the SR sent by the intermediate node.

[0479] In a possible design of this embodiment, the sending module 2410 is used to configure transmission resources based on the SR sent by the intermediate node.

[0480] In a possible design of this embodiment, the receiving module 2420 is configured to receive a first SR sent by the intermediate node through a first SR resource;

[0481] A sending module 2410 is configured to configure a first transmission resource, where the first transmission resource is used for communication between the intermediate node and the A-IoT device;

[0482] The first SR is used to request a transmission resource configuration device to obtain a transmission resource. The first transmission resource is an uplink resource or a sidelink resource.

[0483] In a possible design of this embodiment, the intermediate node requests transmission resources from the transmission resource configuration device in the same way as requesting uplink data transmission resources. The PUCCH resources used to send SR are also the same (first SR resources). The transmission resource configuration device does not know the purpose of the intermediate node requesting transmission resources. The transmission resource configuration device configures a first transmission resource for communication between the intermediate node and the A-IoT device. The first transmission resource is usually a smaller resource, and for A-IoT devices, the working frequency domain bandwidth is generally small. Communicating through the first transmission resource can both complete the work and not waste resources.

[0484] In a possible design of this embodiment, the receiving module 2420 is used to receive the first SR sent by the intermediate node through the first SR resource; the sending module 2410 is used to configure the first transmission resource; the receiving module 2420 is used to receive the BSR reported by the intermediate node through the first transmission resource; the sending module 2410 is used to configure the second transmission resource, and the second transmission resource is used for communication between the intermediate node and the A-IoT device; wherein the first SR is used to request the transmission resource configuration device to obtain the transmission resource, and the second transmission resource is an uplink resource or a sidelink resource.

[0485] In a possible design of this embodiment, the first transmission resource is a resource used by the intermediate node to report the BSR. The intermediate node can request a resource larger than the first transmission resource, such as a second transmission resource, from the transmission resource configuration device through the BSR. In the case where the intermediate node is a UE, the size of the second transmission resource required by the UE is determined through the UE's implementation algorithm, so as to report the corresponding BSR. The size of the second transmission resource is related to the communication between the intermediate node and the A-IoT device. Different communications require different second transmission resources. For example, the second transmission resource required for the intermediate node to send control signaling to the A-IoT device is relatively small, and the second transmission resource required for the intermediate node to schedule the A-IoT device for uplink data transmission is relatively large.

[0486] This method reuses the related scheduling request process, does not need to define new SR resources, has low complexity and is easy to implement.

[0487] In a possible design of this embodiment, the receiving module 2420 is used to receive the first SR sent by the intermediate node through the first SR resource; the sending module 2410 is used to configure the first transmission resource; the receiving module 2420 is used to receive the first information reported by the intermediate node through the first transmission resource, and the first information is used to indicate the demand information of the transmission resource; the sending module 2410 is used to configure the third transmission resource, and the third transmission resource is used for communication between the intermediate node and the A-IoT device; wherein the first SR is used to request the configuration device of the transmission resource to obtain the transmission resource, and the third transmission resource is an uplink resource or a sidelink resource.

[0488] In a possible design of this embodiment, the first information is used to indicate at least one of the following information: demand information of time domain resources of transmission resources; demand information of frequency domain resources of transmission resources; type of transmission resources; type of A-IoT device.

[0489] The time domain resource requirement information for the transmission resource includes at least one of the size, location, and type of the time domain resource. The size of the time domain resource includes the number of time domain slots, or the starting time slot plus the time slot length, or the number of symbols, or the starting symbol plus the symbol length. The location of the time domain resource includes the time offset between the time when the intermediate node sends the first SR and the requested time domain resource, or the first time slot and the corresponding time slot offset value, or the first symbol and the corresponding symbol offset value, or a bit in a bitmap with a value of 1 or 0 used to represent the location of the time domain resource. The location of the time domain resource can be continuous or discontinuous. For example, the requested time domain resource can include multiple time slots, each time slot includes multiple symbols, and the locations of these time slots can be continuous or discontinuous. The types of time domain resources include: time slot, sub-time slot, symbol, symbol group, uplink time domain resource, sidelink time domain resource, etc.

[0490] The frequency domain resource requirement information for the transmission resource includes at least one of the size, location, and type of the frequency domain resource. The size of the frequency domain resource can be determined based on the capabilities of the A-IoT device or can be predefined. The location of the frequency domain resource can be one or more. The location of the frequency domain resource can include a preset location or a set of preset locations.

[0491] The type of the transmission resource is a preset type, or one or more types among multiple preconfigured types.

[0492] The type of an A-IoT device is used to indicate the capabilities of the A-IoT device, including the frequency domain resources supported by the A-IoT device.

[0493] In a possible design of this embodiment, the third transmission resource is a resource determined according to the scheduling signaling sent by the transmission resource configuration device; or, the third transmission resource is part of or all of the resources in the resource pool, and the resource pool is configured by the transmission resource configuration device.

[0494] When the transmission resource configuration device configures a resource pool for the intermediate node, and the intermediate node requests a certain resource or certain resources in the resource pool from the transmission resource configuration device, the first information does not need to carry the specific transmission resource requested by the intermediate node.

[0495] In one possible design of this embodiment, the receiving module 2420 is configured to receive a second SR sent by the intermediate node through a second SR resource, where the second SR resource is an SR resource dedicated to communication between the intermediate node and the A-IoT device.

[0496] The sending module 2410 is used to configure a fourth transmission resource, where the fourth transmission resource is used for communication between the intermediate node and the A-IoT device.

[0497] In one possible design of this embodiment, different second SR resources correspond to different types of A-IoT devices, and different types of A-IoT devices require different transmission resources; or, different second SR resources correspond to different transmission resources, and different transmission resources correspond to different types of A-IoT devices.

[0498] Exemplarily, different second SR resources correspond to different types of A-IoT devices, and different types of A-IoT devices require different time domain resource sizes and positions, and different frequency domain resource sizes and positions; or, different second SR resources correspond to different time domain resource sizes and positions, and different frequency domain resource sizes and positions, and different time domain resource sizes and positions, and different frequency domain resource sizes and positions correspond to different types of A-IoT devices.

[0499] In one possible design of this embodiment, the correspondence between different second SR resources and different types of A-IoT devices is pre-set; or, the correspondence between different second SR resources and different types of A-IoT devices is configured by a configuration device of a transmission resource; or, the correspondence between different second SR resources and different transmission resources is pre-set; or, the correspondence between different second SR resources and different transmission resources is configured by a configuration device of a transmission resource.

[0500] Since the second SR resource is a SR resource dedicated to the communication between the intermediate node and the A-IoT device, the transmission resource configuration device can identify the purpose of the transmission resource requested by the intermediate node, thereby scheduling appropriate transmission resources.

[0501] In a possible design of this embodiment, the sending module 2410 is configured to configure a third uplink resource after receiving the SR;

[0502] Among them, the third uplink resource is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the configuration device of the transmission resource.

[0503] Transmission resources and the third uplink resource are requested through SR, which meets the needs of communication between the intermediate node and the A-IoT device, and the need for the intermediate node to report information related to the A-IoT device to the configuration device of the transmission resource.

[0504] In a possible design of this embodiment, the sending module 2410 is used to send SR resource configuration, and the SR resource configuration is used to indicate SR resources.

[0505] In a possible design of this embodiment, the sending module 2410 is used to send a first SR resource configuration, where the first SR resource configuration is used to indicate a first SR resource; or to send a second SR resource configuration, where the second SR resource configuration is used to indicate a second SR resource.

[0506] In a possible design of this embodiment, the transmission resource in method 1 is an uplink resource or a sidelink resource.

[0507] The transmission resource configuration device allocates sideline resources to the intermediate node through dynamic scheduling, for example, through DCI format 3_0. The sideline resources are used for communication between the intermediate node and the A-IoT device.

[0508] Method 2: Configure CG resources, which are used for communication between intermediate nodes and A-IoT devices.

[0509] In a possible design of this embodiment, the sending module 2410 is used to configure CG resources, which are used for communication between the intermediate node and the A-IoT device.

[0510] In a possible design of this embodiment, the CG resources are resources dedicated to use when the intermediate node communicates with the A-IoT device.

[0511] In a possible design of this embodiment, the CG resource configuration corresponding to the CG resource includes second information, and the second information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

[0512] When configuring CG resources, the transmission resource configuration device indicates through specified elements (such as second information) in the relevant CG resource configuration in order to distinguish the resources dedicated to the communication between the intermediate node and the A-IoT device.

[0513] In a possible design of this embodiment, the relevant information of the A-IoT device corresponding to the CG resource includes at least one of the following: the type of the A-IoT device; the capability of the A-IoT device; the modulation method of the uplink transmission of the A-IoT device; and the encoding method of the uplink transmission of the A-IoT device.

[0514] In a possible design of this embodiment, the types of A-IoT devices corresponding to CG resources include: at least one of first-type A-IoT devices and second-type A-IoT devices, the uplink transmission of the first-type A-IoT devices adopts a backscattering method, and the uplink transmission of the second-type A-IoT devices adopts an active transmission method.

[0515] Different uplink transmission methods of A-IoT devices have different requirements for transmission resources. For example, the frequency domain bandwidth corresponding to the backscattering method can be narrower, while the frequency domain bandwidth corresponding to the active transmission method is wider because it requires sufficient guard band.

[0516] The capabilities of A-IoT devices also determine the configuration of CG resources. For example, the frequency domain-related capabilities of A-IoT devices include supporting variable frequency domain positions and bandwidths, or supporting fixed frequency domain positions and bandwidths.

[0517] In order to meet different coverage requirements, the modulation method or coding method for the uplink transmission of A-IoT devices requires different transmission resources.

[0518] In a possible design of this embodiment, the CG resource is a resource shared by the communication between the intermediate node and the A-IoT device, and the uplink transmission between the intermediate node and the configuration device of the transmission resource.

[0519] In a possible design of this embodiment, when the transmission resource configuration device does not know whether the CG resource is used for the uplink transmission of the intermediate node or for the communication between the intermediate node and the A-IoT device, the transmission resource configuration device blindly detects the uplink transmission of the intermediate node on the CG resource.

[0520] In a possible design of this embodiment, when the transmission resource configuration device knows whether the CG resource is used for uplink transmission of the intermediate node or for communication between the intermediate node and the A-IoT device, the transmission resource configuration device detects the uplink transmission of the intermediate node on the CG resource used by the intermediate node to communicate with the A-IoT device, which can save the overhead caused by blind detection of the transmission resource configuration device.

[0521] In a possible design of this embodiment, the receiving module 2420 is configured to receive first indication information sent by the intermediate node through the CG resource;

[0522] The first indication information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

[0523] The intermediate node may indicate the first indication information through a sequence or a channel, such as UCI carried by an SRS or a PUCCH.

[0524] In a possible design of this embodiment, the first indication information and the first communication information are sent through time division multiplexing. The first indication information is information sent when the intermediate node communicates with the network device through the NR signal. The first communication information includes at least one of information related to the communication between the intermediate node and the network device and information related to the communication between the intermediate node and the A-IoT device.

[0525] In a possible design of this embodiment, the first indication information and the first communication information are sent through frequency division multiplexing. The first indication information is information sent when the intermediate node communicates with the network device through the NR signal. The first communication information includes at least one of information related to the communication between the intermediate node and the network device and information related to the communication between the intermediate node and the A-IoT device.

[0526] The first indication information and the first communication information are sent in a time division multiplexing manner or a frequency division multiplexing manner, so that the first indication information and the first communication information do not interfere with each other.

[0527] In a possible design of this embodiment, the transmission resource in method 2 is an uplink CG resource or a sidelink CG resource.

[0528] The transmission resource configuration device configures side CG resources for the intermediate node for communication between the intermediate node and the A-IoT device. Side CG includes: Type 1 (Type-1) side CG and Type 2 (Type-2) side CG.

[0529] In type 1 sidelink CG, the transmission resource configuration device configures all sidelink CG transmission resources and transmission parameters for the intermediate node through Radio Resource Control (RRC) signaling.

[0530] In type 2 sidelink CG, the transmission resource configuration device configures some transmission parameters for the intermediate node through RRC signaling, activates the sidelink CG through DCI signaling, and the DCI is used to configure the sidelink CG transmission resources.

[0531] Method 3: Send scheduling signaling, which is used to indicate the configuration of transmission resources.

[0532] In a possible design of this embodiment, the sending module 2410 is used to send scheduling signaling, and the scheduling signaling is used to indicate the configuration of transmission resources.

[0533] In a possible design of this embodiment, the sending module 2410 is configured to send third information;

[0534] The third information includes control channel information and / or data channel information, which is information sent to the A-IoT device by the transmission resource configuration device. The third information is received by the intermediate node via downlink resources and then sent to the A-IoT device using transmission resources.

[0535] In topology 2, when the transmission resource configuration device needs to communicate with an A-IoT device, it sends third information to the intermediate node. The third information includes control channel information and / or data channel information. The intermediate node will exchange the control channel information and / or data channel information with the A-IoT device. Afterwards, the intermediate node can send the control channel information and / or data channel information related to the A-IoT device to the transmission resource configuration device. The transmission resource configuration device can send scheduling information to the intermediate node during the process of sending the third information.

[0536] In a possible design of this embodiment, the sending module 2410 is used to send first scheduling information, and the first scheduling information is used to schedule downlink resources.

[0537] In a possible design of this embodiment, the first scheduling information is carried in the scheduling signaling.

[0538] In a possible design of this embodiment, the scheduling signaling used to schedule transmission resources and the scheduling signaling used to schedule downlink resources are the same scheduling signaling.

[0539] In a possible design of this embodiment, the first scheduling signaling for scheduling transmission resources and the second scheduling signaling for scheduling downlink resources are different scheduling signalings. The first scheduling signaling and the second scheduling signaling are sent simultaneously or separately.

[0540] In a possible design of this embodiment, the sending module 2410 is used to send second scheduling information, the second scheduling information is used to schedule a fourth uplink resource, and the fourth uplink resource is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the configuration device of the transmission resource.

[0541] In a possible design of this embodiment, the second scheduling information is carried in the downlink resources or in the scheduling signaling.

[0542] In a possible design of this embodiment, the sending module 2410 is used to send third scheduling information, and the third scheduling information is used to schedule transmission resources.

[0543] In a possible design of this embodiment, the third scheduling information is carried in the downlink resources or in the scheduling signaling.

[0544] The above three types of scheduling information can be used individually or in combination. For example, in one possible design of this embodiment, the scheduling signaling carries the first scheduling information and the second scheduling information, and the downlink resources carry the third scheduling information; or, the scheduling signaling carries the first scheduling information, and the downlink resources carry the second scheduling information and the third scheduling information; or, the scheduling signaling carries the first scheduling information, the second scheduling information, and the third scheduling information, and other such combinations are not limited in this application.

[0545] By using the above three types of scheduling information separately or in combination, the communication needs between the configuration devices, intermediate nodes, and A-IoT devices of transmission resources under different conditions can be met.

[0546] In a possible design of this embodiment, when the transmission resource configuration device schedules the transmission resources, it separately schedules the transmission resources used by the intermediate node to communicate with the A-IoT device; or, it schedules the transmission resources used by the intermediate node to communicate with the A-IoT device, and schedules the fourth uplink resources used by the intermediate node to send control channel information and / or data channel information related to the A-IoT device to the transmission resource configuration device.

[0547] In a possible design of this embodiment, the transmission resource in method 3 is an uplink resource or a sidelink resource.

[0548] The transmission resource configuration device allocates side resources to the intermediate node, and the side resources are used for communication between the intermediate node and the A-IoT device.

[0549] Method 4: Send fourth scheduling information, where the fourth scheduling information is used to indicate configuration of transmission resources.

[0550] In one possible design of this embodiment, the sending module 2410 is configured to send fourth scheduling information, where the fourth scheduling information is used to indicate the configuration of transmission resources. The transmission resources are used for communication between the A-IoT device and a device for configuring the transmission resources, where the device is applied to the topology 1 shown in FIG. 1 .

[0551] In a possible design of this embodiment, the fourth scheduling information is sent by the transmission resource configuration device through the A-IoT air interface.

[0552] In a possible design of this embodiment, the fourth scheduling information is used to indicate at least one of the following: whether to send data; whether to backscatter data; time domain information of the transmission resource; frequency information of the transmission resource; and spread spectrum code information of the transmission resource.

[0553] A-IoT devices include A-IoT devices with active transmission capabilities and A-IoT devices with backscattering capabilities. The scheduling information indicates whether to send data and whether to backscatter data, thereby determining the capabilities of the A-IoT device.

[0554] In a possible design of this embodiment, the receiving module 2420 is used to receive the SR sent by the A-IoT device, where the SR is used to request transmission resources.

[0555] In a possible design of this embodiment, the transmission resources include at least one of dynamic scheduling resources and CG resources.

[0556] For an A-IoT device with active transmission capability, the A-IoT device sends data on the transmission resource, and before sending the data, it may also send an SR to the configuration device of the transmission resource to request the transmission resource.

[0557] In a possible design of this embodiment, the A-IoT device has a backscattering capability, and the sending module 2410 is used to send a carrier signal, which is used to carry data backscattered by the A-IoT device and to provide transmission resources.

[0558] The carrier signal provided by the transmission resource configuration device is equivalent to providing a CG resource. After the A-IoT device is powered and activated by the carrier signal, if there is data to be sent, the data is sent through backscattering.

[0559] In a possible design of this embodiment, the carrier signal is sent by the transmission resource configuration device or a third-party carrier transmission device, and the third-party carrier transmission device is controlled by the transmission resource configuration device.

[0560] In a possible design of this embodiment, the carrier signal is also used to carry fourth scheduling information.

[0561] The transmission resource configuration device or the third-party carrier sending device sends scheduling information to the A-IoT device, which is used by the A-IoT device to determine whether to perform backscattering through the carrier signal. If backscattering is performed through the carrier signal, the A-IoT device is also used to determine the time domain resources and frequency domain resources for backscattering, such as the time unit for backscattering, the frequency offset of the backscattered signal relative to the carrier signal, etc.

[0562] In a possible design of this embodiment, the carrier signal is a signal shared by multiple A-IoT devices.

[0563] In one possible design of this embodiment, the A-IoT device uses a carrier signal for backscattering in different time domain resources according to the IDentification (ID) of the A-IoT device. Different A-IoT device IDs correspond to different time domain resources.

[0564] In a possible design of this embodiment, the fourth scheduling information carried by the carrier signal includes: backscattered time domain resources, backscattered frequency domain resources, and at least one of the ID of the A-IoT device.

[0565] In a possible design of this embodiment, multiple A-IoT devices use carrier signals on the same time domain resources for backscattering, and the backscattered signals are sent in a code division multiplexing manner.

[0566] In a possible design of this embodiment, multiple A-IoT devices use carrier signals on the same time domain resources for backscattering, and the backscattered signals are sent through frequency division multiplexing.

[0567] When multiple A-IoT devices are backscattering, each A-IoT device corresponds to a different frequency domain offset.

[0568] In a possible design of this embodiment, the carrier signal is a signal dedicated to each A-IoT device.

[0569] In one possible design of this embodiment, the fourth scheduling information carried by the carrier signal includes the ID of the A-IoT device. The ID of the A-IoT device is used to instruct the A-IoT device to use the corresponding carrier signal for backscattering.

[0570] In a possible design of this embodiment, the fourth scheduling information is used to instruct a specified A-IoT device or a specified A-IoT device group to perform backscattering through a carrier signal.

[0571] In one possible design of this embodiment, different A-IoT devices perform backscattering based on carrier signals in different time units; or, different A-IoT devices use different frequency offsets in backscattering based on the same carrier signal; or, different A-IoT devices use different spread spectrum code sequences in backscattering based on the same carrier signal.

[0572] Different A-IoT devices perform backscattering based on carrier signals in different time units, which can achieve time division multiplexing between different A-IoT devices; different A-IoT devices use different frequency offsets in backscattering based on the same carrier signal, which can achieve frequency division multiplexing between different A-IoT devices; different A-IoT devices use different spread spectrum code sequences in backscattering based on the same carrier signal, which can enable code division multiplexing of the backscattered signals of different A-IoT devices. Among them, spread spectrum code sequences include m sequence, Gold sequence, Walsh sequence and other sequences.

[0573] In a possible design of this embodiment, the modulation method used for communication between the transmission resource configuration device and the A-IoT device includes at least one of: OOK; FSK; PSK.

[0574] In a possible design of this embodiment, the coding method used for communication between the transmission resource configuration device and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

[0575] In this embodiment, the sending module 2410 can be split into at least one sending submodule, each sending submodule is used to perform at least one of the above-mentioned sending steps, such as a first sending submodule, a second sending submodule, a third sending submodule, and a fourth sending submodule. The first sending submodule is used to configure transmission resources based on the SR sent by the intermediate node, the second sending submodule is used to configure CG resources, the third sending submodule is used to send scheduling signaling, and the fourth sending submodule is used to send fourth scheduling information; or the first sending submodule is used to configure CG resources, the second sending submodule is used to send scheduling signaling, the third sending submodule is used to send fourth scheduling information, and the fourth sending submodule is used to configure transmission resources based on the SR sent by the intermediate node; or the first sending submodule is used to send scheduling signaling, the second sending submodule is used to send fourth scheduling information, the third sending submodule is used to configure transmission resources based on the SR sent by the intermediate node, and the fourth sending submodule is used to configure CG resources; this embodiment does not limit the functions of different sending submodules.

[0576] In this embodiment, the receiving module 2420 can be split into at least one receiving submodule, each receiving submodule is used to perform at least one of the above-mentioned receiving steps, such as a first receiving submodule, a second receiving submodule, a third receiving submodule, and a fourth receiving submodule. The first receiving submodule is used to receive the first SR sent by the intermediate node through the first SR resource, the second receiving submodule is used to receive the second SR sent by the intermediate node through the second SR resource, the third receiving submodule is used to receive the first indication information sent by the intermediate node through the CG resource, and the fourth receiving submodule is used to receive the SR sent by the A-IoT device; or the first receiving submodule is used to receive the second SR sent by the intermediate node through the second SR resource, the second receiving submodule is used to receive the first indication information sent by the intermediate node through the CG resource, the third receiving submodule is used to receive the SR sent by the A-IoT device, and the fourth receiving submodule is used to receive the SR sent by the A-IoT device; or the first receiving submodule is used to receive the first indication information sent by the intermediate node through the CG resource, the second receiving submodule is used to receive the SR sent by the A-IoT device, the third receiving submodule is used to receive the first SR sent by the intermediate node through the first SR resource, and the fourth receiving submodule is used to receive the second SR sent by the intermediate node through the second SR resource; this embodiment does not limit the functions of different receiving submodules.

[0577] This embodiment is described by taking one sending module 2410 and one receiving module 2420 as an example, and the number of the sending modules 2410 and the receiving modules 2420 is not limited.

[0578] For an introduction to the functions of the sending module 2410, please refer to the contents of step 2110 in the embodiment of FIG21 .

[0579] For an introduction to the functions of the receiving module 2420, please refer to the contents of step 2110 in the embodiment of FIG21 .

[0580] Figure 25 shows a schematic diagram of the structure of an intermediate node or A-IoT device provided by an exemplary embodiment of the present application. The intermediate node or A-IoT device 2500 can be used to execute the method steps performed by the intermediate node or A-IoT device in the above embodiment. The intermediate node or A-IoT device 2500 may include: a processor 2501, a transceiver 2502, and a memory 2503. The processor 2501 can be used to control sending and / or receiving. The transceiver 2502 can be used to implement the functions of sending and / or receiving, such as for implementing the functions of at least one of the above-mentioned receiving module 2210, sending module 2220, receiving module 2310, and sending module 2320.

[0581] The processor 2501 includes one or more processing cores. The processor 2501 executes various functional applications and information processing by running software programs and modules.

[0582] The transceiver 2502 may include a receiver and a transmitter. For example, the receiver and the transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0583] The memory 2503 may be connected to the processor 2501 and the transceiver 2502 .

[0584] The memory 2503 may be used to store a computer program executed by the processor, and the processor 2501 is used to execute the computer program to implement each step in the above method embodiment.

[0585] In addition, memory 2503 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0586] In some embodiments, the transceiver 2502 is used to obtain transmission resources, which are used for communication between the intermediate node and the A-IoT device, or for uplink transmission of the A-IoT device.

[0587] In some embodiments, the transceiver 2502 is used to obtain transmission resources based on scheduling information sent by the network device; wherein the transmission resources are used for communication between the A-IoT device and the network device.

[0588] For details not described in detail in this embodiment, please refer to the above embodiments and will not be described in detail here.

[0589] Figure 26 shows a schematic diagram of the structure of a network device provided by an exemplary embodiment of the present application. Network device 2600 may be used to execute the method steps performed by the network device in the above-described embodiments. Network device 2600 may include a processor 2601, a transceiver 2602, and a memory 2603. Processor 2601 may be used to control transmission and / or reception. Transceiver 2602 may be used to implement transmission and / or reception functions, such as implementing at least one of the functions of the aforementioned transmission module 2410 and reception module 2420.

[0590] The processor 2601 includes one or more processing cores. The processor 2601 executes various functional applications and information processing by running software programs and modules.

[0591] The transceiver 2602 may include a receiver and a transmitter. For example, the transceiver 2602 may include a wired communication component, which may include a wired communication chip and a wired interface (such as an optical fiber interface). Alternatively, the transceiver 2602 may also include a wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0592] The memory 2603 may be connected to the processor 2601 and the transceiver 2602 .

[0593] The memory 2603 may be used to store a computer program executed by the processor, and the processor 2601 is used to execute the computer program to implement each step performed by the network device in the above method embodiment.

[0594] In addition, memory 2603 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0595] In some embodiments, the transceiver 2602 is used to configure transmission resources, which are used for communication between the intermediate node and the A-IoT device, or for uplink transmission of the A-IoT device.

[0596] For details not described in detail in this embodiment, please refer to the above embodiments and will not be described in detail here.

[0597] The embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is used to be executed by a processor to implement the above-mentioned method for acquiring transmission resources on the intermediate node or A-IoT device side, or to implement the above-mentioned method for configuring transmission resources on the network device side. In some embodiments, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or optical disks, etc. Among them, random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0598] An embodiment of the present application also provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement a method for acquiring transmission resources on the above-mentioned intermediate node or A-IoT device side, or to implement a method for configuring transmission resources on the above-mentioned network device side.

[0599] An embodiment of the present application also provides a computer program product, which includes a computer program, the computer program is stored in a computer-readable storage medium, and the processor reads and executes the computer program from the computer-readable storage medium to implement the above-mentioned method for acquiring transmission resources on the intermediate node or A-IoT device side, or to implement the above-mentioned method for configuring transmission resources on the network device side.

[0600] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0601] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0602] In some embodiments of the present application, "predefined" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, predefined may refer to information defined in a protocol.

[0603] In some embodiments of the present application, "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0604] In this document, "plurality" refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0605] The term “greater than or equal to” mentioned herein may mean greater than or equal to, or greater than, and the term “less than or equal to” may mean less than or equal to, or less than.

[0606] In addition, the step numbers described in this document only illustrate a possible execution order between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order of the diagram. The embodiments of the present application are not limited to this.

[0607] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0608] The above are merely exemplary embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for acquiring transmission resources, characterized in that: The method is performed by an intermediate node, and includes: The transmission resource is obtained, where the transmission resource is used for communication between the intermediate node and the ambient energy Internet of Things A-IoT device, or for uplink transmission of the A-IoT device.

2. The method according to claim 1, characterized in that The acquiring of the transmission resource includes: The transmission resource is obtained through a scheduling request SR.

3. The method according to claim 2, characterized in that The acquiring of the transmission resource through the SR includes: Send a first SR through a first SR resource; obtain a first transmission resource configured by the network device, where the first transmission resource is used for communication between the intermediate node and the A-IoT device.

4. The method according to claim 2, characterized in that The acquiring of the transmission resource through the SR includes: Send a first SR through a first SR resource; obtain a first uplink resource configured by the network device; report a buffer status report BSR through the first uplink resource; obtain a second transmission resource configured by the network device, and the second transmission resource is used for communication between the intermediate node and the A-IoT device.

5. The method according to claim 2, characterized in that The acquiring of the transmission resource through the SR includes: Send a first SR through a first SR resource; obtain a second uplink resource configured by the network device; report first information through the second uplink resource, wherein the first information is used to indicate the demand information of the transmission resource; obtain a third transmission resource configured by the network device, and the third transmission resource is used for communication between the intermediate node and the A-IoT device.

6. The method according to claim 5, characterized in that The first information is used to indicate at least one of the following information: the demand information of the time domain resources of the transmission resources; the demand information of the frequency domain resources of the transmission resources; the type of the transmission resources; and the type of the A-IoT device.

7. The method according to claim 6, characterized in that The third transmission resource is a resource determined according to the scheduling signaling sent by the network device; or, the third transmission resource is part of or all of the resources in a resource pool, and the resource pool is configured by the network device.

8. The method according to claim 2, characterized in that The acquiring of the transmission resource through the SR includes: Sending a second SR through a second SR resource, where the second SR resource is a SR resource dedicated to communication between the intermediate node and the A-IoT device; Obtain a fourth transmission resource configured by the network device, where the fourth transmission resource is used for communication between the intermediate node and the A-IoT device.

9. The method according to claim 8, characterized in that Different second SR resources correspond to different types of A-IoT devices, and the different types of A-IoT devices require different transmission resources respectively; or, different second SR resources correspond to different transmission resources, and the different transmission resources correspond to different types of A-IoT devices.

10. The method according to claim 8, characterized in that The correspondence between the different second SR resources and the different types of A-IoT devices is pre-set; or, the correspondence between the different second SR resources and the different types of A-IoT devices is configured by the network device; or, the correspondence between the different second SR resources and the different transmission resources is pre-set; or, the correspondence between the different second SR resources and the different transmission resources is configured by the network device.

11. The method according to claim 2, characterized in that The method further comprises: Obtain a third uplink resource; wherein, the third uplink resource is a resource configured by the network device after receiving the SR, and the third uplink resource is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the network device.

12. The method according to any one of claims 2 to 11, characterized in that: The transmission resource is an uplink resource or a sidelink resource.

13. The method according to claim 1, wherein The acquiring of the transmission resource includes: Obtain configuration authorization CG resources, where the CG resources are used for communication between the intermediate node and the A-IoT device.

14. The method according to claim 13, wherein: The CG resources are resources dedicated to the communication between the intermediate node and the A-IoT device.

15. The method according to claim 14, characterized in that The CG resource configuration corresponding to the CG resource includes second information, and the second information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

16. The method according to claim 15, characterized in that The relevant information of the CG resource corresponding to the A-IoT device includes at least one of the following: the type of the A-IoT device; the capability of the A-IoT device; the modulation method of the uplink transmission of the A-IoT device; and the encoding method of the uplink transmission of the A-IoT device.

17. The method according to claim 16, characterized in that The type of A-IoT device corresponding to the CG resource includes: at least one of a first type A-IoT device and a second type A-IoT device, the uplink transmission of the first type A-IoT device adopts a backscattering method, and the uplink transmission of the second type A-IoT device adopts an active transmission method.

18. The method according to claim 13, characterized in that The CG resources are resources shared by the communication between the intermediate node and the A-IoT device, and the uplink transmission between the intermediate node and the network device.

19. The method according to claim 18, characterized in that The method further comprises: Sending first indication information to the network device through the CG resource, and communicating with the A-IoT device through the CG resource; The first indication information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

20. The method according to any one of claims 13 to 19, characterized in that The transmission resource is an uplink CG resource or a sidelink CG resource.

21. The method according to claim 1, wherein The acquiring of the transmission resource includes: The transmission resource is obtained based on the scheduling signaling sent by the network device.

22. The method according to claim 21, characterized in that The method further comprises: Receive the third information sent by the network device through the downlink resources, where the third information includes control channel information and / or data channel information; and use the transmission resources to send the third information to the A-IoT device.

23. The method according to claim 22, characterized in that The method further comprises: Acquire first scheduling information, where the first scheduling information is used to schedule the downlink resource.

24. The method according to claim 22, characterized in that The method further comprises: Obtain second scheduling information, where the second scheduling information is used to schedule a fourth uplink resource, and the fourth uplink resource is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the network device.

25. The method according to claim 22, wherein The method further comprises: Acquire third scheduling information, where the third scheduling information is used to schedule the transmission resource.

26. The method according to claim 23, wherein The first scheduling information is carried in the scheduling signaling.

27. The method according to claim 24, characterized in that The second scheduling information is carried in the downlink resource or in the scheduling signaling.

28. The method according to claim 25, characterized in that The third scheduling information is carried in the downlink resource or in the scheduling signaling.

29. The method according to any one of claims 21 to 28, characterized in that The transmission resource is an uplink resource or a sidelink resource.

30. The method according to any one of claims 1 to 29, characterized in that The modulation mode used in the communication between the intermediate node and the A-IoT device includes at least one of: on-off keying (OOK); frequency shift keying (FSK); and phase shift keying (PSK).

31. The method according to any one of claims 1 to 29, characterized in that The coding method used in the communication between the intermediate node and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

32. The method according to any one of claims 1 to 29, characterized in that The modulation mode used in the communication between the intermediate node and the network device includes Orthogonal Frequency Division Multiplexing (OFDM) modulation.

33. The method according to any one of claims 1 to 29, characterized in that The coding method used in the communication between the intermediate node and the network device includes: at least one of polar code and low-density parity check code LDPC coding.

34. A method for acquiring transmission resources, characterized in that: The method is performed by an Ambient Energy Internet of Things (A-IoT) device, and includes: Acquiring the transmission resource based on the scheduling information sent by the network device; The transmission resources are used for communication between the A-IoT device and the network device.

35. The method according to claim 34, wherein The scheduling information is used to indicate at least one of the following: whether to send data; whether to backscatter data; time domain information of the transmission resource; frequency information of the transmission resource; and spreading code information of the transmission resource.

36. The method according to claim 35, characterized in that The method further comprises: Send a scheduling request SR, where the SR is used to request the transmission resource.

37. The method according to claim 35 or 36, characterized in that The transmission resources include at least one of dynamic scheduling resources and configuration authorized CG resources.

38. The method according to claim 34, wherein The A-IoT device has a backscattering capability, and the method further includes: A carrier signal is received, where the carrier signal is used to carry data backscattered by the A-IoT device, and the carrier signal is used to provide the transmission resource.

39. The method according to claim 38, characterized in that The carrier signal is also used to carry the scheduling information.

40. The method according to claim 39, wherein Different A-IoT devices perform backscattering based on the carrier signal in different time units; or, different A-IoT devices use different frequency offsets in backscattering based on the same carrier signal; or, different A-IoT devices use different spread spectrum code sequences in backscattering based on the same carrier signal.

41. The method according to any one of claims 38 to 40, characterized in that The carrier signal is sent by a network device or a third-party carrier signal sending device, and the third-party carrier signal sending device is controlled by the network device.

42. The method according to any one of claims 34 to 41, characterized in that The scheduling information is sent by the network device through the A-IoT air interface.

43. The method according to any one of claims 34 to 42, characterized in that The modulation mode used for communication between the network device and the A-IoT device includes at least one of: on-off keying (OOK); frequency shift keying (FSK); and phase shift keying (PSK).

44. The method according to any one of claims 34 to 42, characterized in that The coding method used in the communication between the network device and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

45. A method for configuring transmission resources, characterized in that: The method is performed by a network device, and includes: The transmission resources are configured, and the transmission resources are used for communication between the intermediate node and the ambient energy Internet of Things A-IoT device, or for uplink transmission of the A-IoT device.

46. ​​The method according to claim 45, characterized in that The configuring the transmission resource includes: The transmission resources are configured based on the scheduling request SR sent by the intermediate node.

47. The method according to claim 46, wherein The configuring the transmission resource based on the SR sent by the intermediate node includes: receiving a first SR sent by the intermediate node through a first SR resource; configuring a first transmission resource, where the first transmission resource is used for communication between the intermediate node and the A-IoT device.

48. The method according to claim 46, wherein The configuring of the transmission resources based on the SR sent by the intermediate node includes: receiving a first SR sent by the intermediate node through a first SR resource; configuring a first uplink resource; receiving a buffer status report BSR reported by the intermediate node through the first uplink resource; and configuring a second transmission resource, where the second transmission resource is used for communication between the intermediate node and the A-IoT device.

49. The method according to claim 46, wherein The configuration of the transmission resources based on the SR sent by the intermediate node includes: receiving a first SR sent by the intermediate node through a first SR resource; configuring a second uplink resource; receiving first information reported by the intermediate node through the second uplink resource, the first information being used to indicate the demand information of the transmission resource; and configuring a third transmission resource, where the third transmission resource is used for communication between the intermediate node and the A-IoT device.

50. The method according to claim 49, wherein The first information is used to indicate at least one of the following information: the demand information of the time domain resources of the transmission resources; the demand information of the frequency domain resources of the transmission resources; the type of the transmission resources; and the type of the A-IoT device.

51. The method according to claim 50, wherein The third transmission resource is a resource determined according to the scheduling signaling sent by the network device; or, the third transmission resource is part of or all of the resources in a resource pool, and the resource pool is configured by the network device.

52. The method according to claim 46, wherein The configuring of the transmission resources based on the SR sent by the intermediate node includes: receiving a second SR sent by the intermediate node through a second SR resource, where the second SR resource is a SR resource dedicated to the intermediate node and used when communicating with the A-IoT device; and configuring a fourth transmission resource, where the fourth transmission resource is used for communication between the intermediate node and the A-IoT device.

53. The method according to claim 52, characterized in that Different second SR resources correspond to different types of A-IoT devices, and the different types of A-IoT devices require different transmission resources respectively; or, different second SR resources correspond to different transmission resources, and the different transmission resources correspond to different types of A-IoT devices.

54. The method according to claim 52, wherein The correspondence between the different second SR resources and the different types of A-IoT devices is pre-set; or, the correspondence between the different second SR resources and the different types of A-IoT devices is configured by the network device; or, the correspondence between the different second SR resources and the different transmission resources is pre-set; or, the correspondence between the different second SR resources and the different transmission resources is configured by the network device.

55. The method according to claim 46, wherein The method further comprises: After receiving the SR, a third uplink resource is configured; wherein the third uplink resource is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the network device.

56. The method according to any one of claims 46 to 55, characterized in that The transmission resource is an uplink resource or a sidelink resource.

57. The method according to claim 45, wherein The configuring the transmission resource includes: Configure authorized CG resources, where the CG resources are used for communication between the intermediate node and the A-IoT device.

58. The method according to claim 57, wherein The CG resources are resources dedicated to the communication between the intermediate node and the A-IoT device.

59. The method according to claim 58, characterized in that The CG resource configuration corresponding to the CG resource includes second information, and the second information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

60. The method according to claim 59, wherein The relevant information of the CG resource corresponding to the A-IoT device includes at least one of the following: the type of the A-IoT device; the capability of the A-IoT device; the modulation method of the uplink transmission of the A-IoT device; and the encoding method of the uplink transmission of the A-IoT device.

61. The method according to claim 60, characterized in that The type of A-IoT device corresponding to the CG resource includes: at least one of a first type A-IoT device and a second type A-IoT device, the uplink transmission of the first type A-IoT device adopts a backscattering method, and the uplink transmission of the second type A-IoT device adopts an active transmission method.

62. The method according to claim 57, wherein The CG resources are resources shared by the communication between the intermediate node and the A-IoT device, and the uplink transmission between the intermediate node and the network device.

63. The method according to claim 62, characterized in that The method further comprises: Receiving first indication information sent by the intermediate node through the CG resource; The first indication information is used to indicate that the CG resource is used for communication between the intermediate node and the A-IoT device.

64. The method according to any one of claims 57 to 63, characterized in that The transmission resource is an uplink CG resource or a sidelink CG resource.

65. The method according to claim 45, wherein The configuring the transmission resource includes: Sending scheduling signaling, where the scheduling signaling is used to instruct configuration of the transmission resource.

66. The method according to claim 65, characterized in that The method further comprises: Send third information; wherein, the third information includes control channel information and / or data channel information, and the third information is received by the intermediate node through the downlink resource and then sent to the A-IoT device using the transmission resource.

67. The method according to claim 66, characterized in that The method further comprises: First scheduling information is sent, where the first scheduling information is used to schedule the downlink resources.

68. The method according to claim 66, characterized in that The method further comprises: Send second scheduling information, where the second scheduling information is used to schedule a fourth uplink resource, and the fourth uplink resource is used for the intermediate node to report control channel information and / or data channel information related to the A-IoT device to the network device.

69. The method according to claim 66, characterized in that The method further comprises: Send third scheduling information, where the third scheduling information is used to schedule the transmission resource.

70. The method according to claim 67, wherein The first scheduling information is carried in the scheduling signaling.

71. The method according to claim 68, wherein The second scheduling information is carried in the downlink resource or in the scheduling signaling.

72. The method according to claim 69, wherein The third scheduling information is carried in the downlink resource or in the scheduling signaling.

73. The method according to any one of claims 65 to 72, characterized in that The transmission resource is an uplink resource or a sidelink resource.

74. The method according to any one of claims 45 to 73, characterized in that The modulation mode used in the communication between the intermediate node and the A-IoT device includes at least one of: on-off keying (OOK); frequency shift keying (FSK); and phase shift keying (PSK).

75. The method according to any one of claims 45 to 73, characterized in that The coding method used in the communication between the intermediate node and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

76. The method according to any one of claims 45 to 73, characterized in that The modulation mode used in the communication between the intermediate node and the network device includes Orthogonal Frequency Division Multiplexing (OFDM) modulation.

77. The method according to any one of claims 45 to 73, characterized in that The coding method used in the communication between the intermediate node and the network device includes: at least one of polar code and low-density parity check code LDPC coding.

78. The method of claim 45, wherein: The configuring the transmission resource includes: sending fourth scheduling information, where the fourth scheduling information is used to indicate configuration of the transmission resource; The transmission resources are used for communication between the A-IoT device and the network device.

79. The method according to claim 78, characterized in that The fourth scheduling information is used to indicate at least one of the following: whether to send data; whether to backscatter data; time domain information of the transmission resource; frequency information of the transmission resource; and spreading code information of the transmission resource.

80. The method according to claim 79, wherein The method further comprises: Receive an SR sent by the A-IoT device, where the SR is used to request the transmission resource.

81. The method according to claim 79 or 80, characterized in that The transmission resources include at least one of dynamic scheduling resources and CG resources.

82. The method according to claim 78, wherein The A-IoT device has a backscattering capability, and the method further includes: Send a carrier signal, where the carrier signal is used to carry the data backscattered by the A-IoT device, and the carrier signal is used to provide the transmission resource.

83. The method according to claim 82, characterized in that The carrier signal is also used to carry the fourth scheduling information.

84. The method according to claim 83, characterized in that Different A-IoT devices perform backscattering based on the carrier signal in different time units; or, different A-IoT devices use different frequency offsets in backscattering based on the same carrier signal; or, different A-IoT devices use different spread spectrum code sequences in backscattering based on the same carrier signal.

85. The method according to any one of claims 82 to 84, characterized in that The carrier signal is sent by the network device or a third-party carrier signal sending device, and the third-party carrier signal sending device is controlled by the network device.

86. The method according to any one of claims 78 to 85, characterized in that The fourth scheduling information is sent by the network device through the A-IoT air interface.

87. The method according to any one of claims 78 to 86, characterized in that The modulation mode used in the communication between the network device and the A-IoT device includes at least one of OOK, FSK, and PSK.

88. The method according to any one of claims 78 to 86, characterized in that The coding method used in the communication between the network device and the A-IoT device includes: reverse non-return-to-zero coding; Manchester coding; unipolar return-to-zero coding; differential biphase coding; Miller coding; at least one of differential coding.

89. A device for acquiring transmission resources, characterized in that: The device comprises: A receiving module is used to obtain the transmission resources, and the transmission resources are used for communication between the transmission resource acquisition device and the ambient energy Internet of Things A-IoT device, or for uplink transmission of the A-IoT device.

90. A device for acquiring transmission resources, characterized in that: The device comprises: A receiving module, configured to obtain the transmission resource based on the scheduling information sent by the network device; The transmission resource is used for communication between the transmission resource acquisition device and the network device.

91. A transmission resource configuration device, characterized in that: The device comprises: The sending module is used to configure the transmission resources, which are used for communication between the intermediate node and the Ambient Energy Internet of Things A-IoT device, or for uplink transmission of the A-IoT device.

92. An intermediate node, characterized in that: The intermediate node includes: A processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the method for acquiring transmission resources as described in any one of claims 1 to 33.

93. An Ambient Energy Internet of Things (A-IoT) device, characterized in that: The A-IoT device includes: A processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the method for acquiring transmission resources as described in any one of claims 34 to 44.

94. A network device, characterized in that The network equipment includes: A processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the transmission resource configuration method as described in any one of claims 45 to 88.

95. A computer-readable storage medium, characterized in that The computer-readable storage medium stores at least one program, which is loaded and executed by the processor to implement the method for acquiring transmission resources as described in any one of claims 1 to 33, or the method for acquiring transmission resources as described in any one of claims 34 to 44, or the method for configuring transmission resources as described in any one of claims 45 to 88.

96. A chip, characterized in that The chip includes programmable logic circuits and / or program instructions. When the chip is running on an intermediate node, it is used to implement the method for acquiring transmission resources described in any one of claims 1 to 33 above. When the chip is running on an ambient energy Internet of Things (A-IoT) device, it is used to implement the method for acquiring transmission resources described in any one of claims 34 to 44 above. When the chip is running on a network device, it is used to implement the method for configuring transmission resources described in any one of claims 45 to 88 above.

97. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium. The processor obtains the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to implement the method for obtaining transmission resources as described in any one of claims 1 to 33, or the method for obtaining transmission resources as described in any one of claims 34 to 44, or the method for configuring transmission resources as described in any one of claims 45 to 88.

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