Information transmission method and apparatus, and device and medium

Abstract

Provided in the present disclosure are an information transmission method and apparatus, and a device and a medium. The method in the present disclosure comprises: sending a first signal or channel to a first device, wherein the first signal or channel carries resource configuration information, the resource configuration information is used for indicating a first transmission resource, the first signal or channel is a signal or channel from a network unit to the first device, the first transmission resource is a transmission resource used by the first device to execute a first transmission, and a link corresponding to the first transmission is a link or an uplink or a reverse link from the first device to the network unit.

Description

Information transmission methods, devices, equipment and media

[0001] This disclosure claims priority to Chinese Patent Application No. 202510125817.X, filed on January 27, 2025, entitled "Information Transmission Method, Apparatus, Device and Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to an information transmission method, apparatus, device and medium. Background Technology

[0003] Inventory, sensor, positioning, and command are four key application scenarios that Ambient Internet of Things (A-IoT) services need to support. For outdoor A-IoT scenarios, autonomous transmission by IoT devices is required; that is, for outdoor services, autonomous transmission is needed without dynamic signaling triggers, thereby enabling the management of outdoor IoT services. However, currently, there is no resource allocation solution specifically for outdoor IoT services. Summary of the Invention

[0004] This disclosure provides an information transmission method, apparatus, device, and medium to address the current lack of resource allocation for IoT outdoor services.

[0005] To achieve the above objectives, in a first aspect, embodiments of this disclosure provide an information transmission method applied to a first network unit, comprising:

[0006] A first signal or channel is sent to a first device. The first signal or channel carries resource configuration information. The resource configuration information is used to indicate a first transmission resource. The first signal or channel is a signal or channel from a network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform the first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0007] Secondly, embodiments of this disclosure also provide an information transmission method, applied to a first device, comprising:

[0008] Receive a first signal or channel sent by a first network unit, wherein the first signal or channel carries resource configuration information and the first signal or channel is a signal or channel from the network unit to the first device;

[0009] According to the resource configuration information, a first transmission is performed on the first transmission resource, and the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0010] Thirdly, embodiments of this disclosure also provide a first network unit, including: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and execute the following processes:

[0011] A first signal or channel is sent to a first device via a transceiver. The first signal or channel carries resource configuration information, which is used to indicate a first transmission resource. The first signal or channel is a signal or channel from a network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform the first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0012] Fourthly, embodiments of this disclosure also provide an information transmission device, including:

[0013] The first transmitting unit is configured to transmit a first signal or channel to the first device. The first signal or channel carries resource configuration information, which is used to indicate a first transmission resource. The first signal or channel is a signal or channel from the network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform the first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0014] Fifthly, embodiments of this disclosure also provide a first device, including: a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and execute the following processes:

[0015] The transceiver receives a first signal or channel sent by the first network unit, the first signal or channel carrying resource configuration information, and the first signal or channel being a signal or channel from the network unit to the first device.

[0016] According to the resource configuration information, a first transmission is performed on the first transmission resource, and the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0017] Sixthly, embodiments of this disclosure also provide an information transmission device, including:

[0018] The first receiving unit is configured to receive a first signal or channel sent by the first network unit, wherein the first signal or channel carries resource configuration information and the first signal or channel is a signal or channel from the network unit to the first device.

[0019] The first processing unit is configured to perform a first transmission on a first transmission resource according to the resource configuration information, wherein the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0020] In a seventh aspect, embodiments of this disclosure also provide a non-transitory readable storage medium storing a program for executing the steps of the information transmission method described in the first aspect, or executing the steps of the information transmission method described in the second aspect.

[0021] The above-disclosed technical solution has at least the following beneficial effects:

[0022] In the above technical solution of this disclosure embodiment, by sending a first signal or channel to a first device, the first signal or channel carries resource configuration information, the resource configuration information is used to indicate a first transmission resource, the first signal or channel is a signal or channel from a network unit to the first device, the first transmission resource is the transmission resource used by the first device to perform a first transmission, and the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link. In this way, the configuration of the first transmission resource used by the first device for autonomous transmission is realized by using a first signal / channel, thereby realizing the resource configuration for IoT outdoor services, which helps to realize the subsequent management of IoT outdoor services. Attached Figure Description

[0023] Figure 1 shows one of the signal transmission topologies of an A-IoT system;

[0024] Figure 2 shows the second topology of signal transmission in an A-IoT system;

[0025] Figure 3 is a schematic diagram of a 4-step or 3-step random access process;

[0026] Figure 4 is a schematic diagram of a 2-step or 1-step random access process;

[0027] Figure 5 is a flowchart illustrating one of the information transmission methods according to an embodiment of this disclosure;

[0028] Figure 6 is one of the schematic diagrams of the first device determining the initial valid D2R resources according to an embodiment of this disclosure;

[0029] Figure 7 is a second schematic diagram of the first device determining the initial valid D2R resources according to an embodiment of this disclosure;

[0030] Figure 8 is a schematic diagram of the first network unit indicating a D2R resource configuration frame according to an embodiment of the present disclosure;

[0031] Figure 9 is a schematic diagram of the first network unit indicating D2R resources according to an embodiment of this disclosure;

[0032] Figure 10 is a second schematic flowchart of the information transmission method according to an embodiment of this disclosure;

[0033] Figure 11 is a structural block diagram of the first network unit according to an embodiment of this disclosure;

[0034] Figure 12 is a schematic diagram of one of the modules of the information transmission device according to an embodiment of the present disclosure;

[0035] Figure 13 is a structural block diagram of the first device according to an embodiment of the present disclosure;

[0036] Figure 14 is a second schematic diagram of the information transmission device according to an embodiment of this disclosure. Detailed Implementation

[0037] In this disclosure, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0038] In this disclosure, the term "multiple" refers to two or more, and other quantifiers are similar.

[0039] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0040] To facilitate understanding of the solutions disclosed herein, the relevant content involved in this disclosure will be introduced first.

[0041] Unlike ordinary terminals in New Radio (NR) systems, A-IoT defines a new type of IoT device for low-complexity, low-cost, and low-power low-end IoT devices. A-IoT devices have no batteries but can harvest energy from the surrounding environment, typically using electromagnetic waves or light energy for energy harvesting (EH), characterized by low energy consumption and low cost. Currently, A-IoT includes three device types: Device 1, 2a, and 2b. Device 1 / 2a can only backscatter / reflect received signals, carrying information in the backscattered / reflected signals. Device 2b can actively transmit signals.

[0042] For A-IoT systems, Device 1 / 2a is a passive IoT device with energy harvesting capabilities, consuming, for example, 1μW-10μW. Device 1 / 2a cannot independently generate the reverse signal transmitted from the device to the base station or intermediate node. Device 1 / 2a generates a backscattered / reflected signal by reflecting and modulating the incident / excitation / carrier wave (CW) signal. This backscattered / reflected signal is received by the reader, i.e., the base station or relay node. This backscattered / reflected signal can be called the reverse signal / channel (from the perspective of the A-IoT device), or the device-to-reader (D2R) signal / channel. The CW signal can be sent by the reader or by an external node other than the reader (e.g., a power supply node). See Figures 1 and 2 for details: Figure 1 shows topology 1, where the base station (as the reader) sends an incident signal to the A-IoT device, and the A-IoT device reflects the incident signal back to the base station, carrying modulation information in the reflected signal. Figure 2 shows topology 2. The outdoor base station first transmits data to the indoor intermediate node using the Uu interface (i.e., air interface). The indoor intermediate node (e.g., UE Reader) sends an incident signal to the A-IoT device. The A-IoT device reflects the incident signal, and the reflected signal carries modulation information. The indoor intermediate node receives the A-IoT reflected signal carrying the aforementioned information.

[0043] In addition to sending CW signals to A-IoT devices, the reader can also send modulated signals carrying information to A-IoT devices. These modulated signals are called Reader to Device (R2D) signals / channels. R2D signals / channels can carry both physical layer information and higher-layer information, which is completely different from the Physical Downlink Control Channel (PDCCH) or Physical Downlink Shared Channel (PDSCH) of NR or Long Term Evolution (LTE) systems.

[0044] Currently, two types of uplink services are discussed: Device-originated–device-terminated triggered (DO-DTT) and Device-originated–autonomous device (DO-A), and one type of downlink service: Device-originated (DO). The focus is on the following two services: DO-DTT and Device-terminated (DT) for rUC1 (indoor inventory) and rUC4 (indoor command). Both of these services involve Device-terminated, i.e., downlink indication signaling from the base station or intermediate node terminating at the device node, i.e., device-terminated triggered signaling. Device-terminated triggered requires an R2D downlink / forward indication signal / channel, which carries information to trigger device communication.

[0045] Since A-IoT devices do not support the Radio Resource Control (RRC) state of the NR system, i.e., there is no RRC connected state or idle state, the A-IoT inventory process or random access process will be uniformly described as a random access process description thereafter, mainly involving 4-step or 3-step random access process (see Figure 3) and 2-step or 1-step random access process (see Figure 4).

[0046] Referring to Figure 3, in the 4-step or 3-step random access process, the Reader first sends Msg 0 (i.e., a paging signal or inventory signal) to the A-IoT device. Then, the A-IoT device sends a response signal Msg1 to the Reader, such as sending a 16-bit random number identifier. After successfully receiving Msg1, the Reader sends a response message Msg2 to the A-IoT device for scheduling Msg3. After receiving Msg2 from the Reader, the A-IoT device sends Msg3 to the Reader. The A-IoT device must at least send its own identifier, Device ID, to the Reader via Msg3.

[0047] Referring to Figure 4, the 2-step or 1-step random access process involves only two steps: Msg0 (paging signal, also known as Msg A) and the response signal Msg1 (also known as Msg B). For example, after receiving the paging message Msg0 / MsgA from the Reader, the A-IoT device needs to send at least the Device ID, such as the Electronic Product Code (EPC), in Msg1 / MsgB to the Reader. Although the above process has the same name as the NR system, the actual physical transmission process is completely different from the NR or LTE systems. For example, each message in A-IoT needs to be transmitted using encoding and modulation.

[0048] Inventory, sensor, positioning, and command are four key application scenarios that Ambient Internet of Things (A-IoT) services need to support. For outdoor scenarios, where readers (e.g., base stations or intermediate nodes) are deployed outdoors, a crucial service is sensor operations. Typical use cases include smart grids, forest fire monitoring, dairy farming, smart manhole cover safety monitoring, and smart bridge health monitoring. Outdoor A-IoT scenarios require autonomous transmission from IoT devices—that is, autonomous transmission suitable for outdoor services without the need for dynamic triggering (R2D) signaling—to manage outdoor IoT services. However, currently, there is no resource allocation solution specifically for outdoor IoT services.

[0049] To address the aforementioned technical problems, this disclosure provides an information transmission method, apparatus, device, and medium. The method and apparatus are based on the same concept. Since the methods and apparatus solve problems in similar ways, their implementations can be mutually referenced, and repeated details will not be repeated.

[0050] Figure 5 shows a flowchart of the information transmission method provided in this embodiment of the present disclosure. This method is applied to a first network unit, meaning it is executed by the first network unit. Specifically, the method may include:

[0051] Step 501: Send a first signal or channel to the first device. The first signal or channel carries resource configuration information. The resource configuration information is used to indicate the first transmission resource. The first signal or channel is a signal or channel from the network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform the first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0052] It should be noted that the first network unit can be a base station or an intermediate node. The intermediate node can be a terminal or other type of intermediate node. The first network unit can also be called a Reader, but in a dual-site receiving scenario, if the first network unit only transmits R2D signals / channels and does not receive D2R signals / channels (i.e., another node is used to receive D2R signals / channels), then the first network unit is not necessarily a Reader. Since the first network unit is described as a Reader in Rel-19 A-IoT, for simplicity, the following description will use Reader as an example.

[0053] The first device is a terminal that is different from the NR system. In some embodiments, the first device is an Internet of Things (IoT) device, such as an A-IoT device.

[0054] In some embodiments, the first transmission is one of the following transmissions:

[0055] Autonomous transmission without dynamic device-initiated-device-terminated DO-DTT signaling, such as D2R transmission without dynamic DO-DTT signaling;

[0056] Autonomous transmission without dynamic DO-DTT signaling, such as D2R transmission without dynamic DO-DTT signaling;

[0057] Autonomous transmission that eliminates the need for triggering signaling from the first network unit to the first device, such as D2R transmission that eliminates R2D triggering signaling;

[0058] Autonomous transmission without triggering signaling from the first network unit to the first device, such as D2R transmission without triggering signaling from R2D;

[0059] Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamic first network unit, such as D2R transmission without dynamic R2D scheduling signaling;

[0060] Autonomous transmission without dynamic first network unit to first device scheduling signaling, such as D2R transmission without dynamic R2D scheduling signaling.

[0061] In other words, the first transmission is an autonomous transmission by IoT devices that does not require dynamic triggering signaling.

[0062] The information transmission method of this disclosure embodiment involves a first network unit sending a first signal or channel carrying resource configuration information to a first device (such as an IoT device). The first signal / channel is used to configure the first transmission resources used by the first device during autonomous transmission, thereby realizing resource configuration for IoT outdoor services and facilitating subsequent management of IoT outdoor services.

[0063] In some embodiments, the location of the resource configuration information in the first signal or channel is predefined by the protocol or indicated by control indication information; or the association between the resource configuration information and the fields contained in the first signal or channel is predefined by the protocol or indicated by control indication information, which is carried in the first signal or channel.

[0064] That is, the first device determines the location of the resource configuration information in the first signal or channel, or determines the association between the resource configuration information and the fields contained in the first signal or channel, through a predefined protocol method or a control indication method. It then locates the resource configuration information and parses it to obtain the relevant information required for the first device to perform the first transmission. The description / principle of this embodiment also applies to the following embodiments and will not be repeated hereafter.

[0065] In some embodiments, step 501 above, sending a first signal or channel to the first device, includes sending a dedicated first signal or channel to the first device. That is, the first network unit sends a dedicated first signal or channel, such as a dedicated R2D signal / channel, which carries resource configuration information configured by the first network unit for the first device. It should be understood that the dedicated first signal or channel carries the transmission resources corresponding to the D2R signal / channel configured by the first network unit for the first device.

[0066] Of course, the first signal or channel can also be sent to at least one device via broadcast or multicast.

[0067] In some embodiments, the resource configuration information includes one or more of the following:

[0068] Frame type indication information; here, frame type indication information can also be called resource configuration frame type indication information. The frame type indication information is associated with the service type and / or frame function of the first device (such as an IoT device). For example, at least 2 bits represent the frame type: such as bit 11: indicating a sensing service or DO-A resource configuration frame (frame function), 10: indicating an inventory frame (frame type), 01: indicating a command frame, and 00: indicating a location frame. After receiving a first signal or channel, the first device can determine that the first signal or channel is for resource configuration through the frame type indication information, and further determine the service type and / or frame type corresponding to the resource configuration. If the first signal or channel sent by the first network unit does not carry frame type indication information, the first device defaults to the first frame type, which is preferably an inventory frame.

[0069] The first device identification information, i.e., the device ID; here, if the first network unit sends a dedicated first signal or channel to the first device, the resource configuration information carried by the first signal or channel includes a first device identification information; if the first network unit sends the first signal or channel to at least one first device through broadcast or multicast, the resource configuration information carried by the first signal or channel includes at least one first device identification information.

[0070] The waveform information transmitted by the second signal or channel corresponding to the first transmission resource, where the second signal or channel is the signal or channel from the first device to the network unit; here, the waveform information may include Orthogonal Frequency Division Multiplexing (OFDM) waveform, Single Side Band (SSB) waveform, and Double Side Band (DSB) waveform. If the first signal or channel transmitted by the first network unit side does not have configured or indicated waveform information, the first device side defaults to the transmission waveform of the first transmission resource (D2R transmission resource) as the first waveform. Preferably, the first waveform is a waveform predefined by the protocol, such as a double side band waveform based on a single carrier.

[0071] The modulation information of the second signal or channel corresponding to the first transmission resource; for example, at least 2 bits, indicating different modulation schemes: 11: Binary Phase Shift Keying (BPSK), 10: Quadrature Phase Shift Keying (QPSK), 01: Frequency Shift Keying (FSK), 00: Minimum Shift Keying (MSK). The first device generates the D2R signal or channel corresponding to the modulation scheme according to the instruction of the first network unit.

[0072] The frequency domain resource information corresponding to the first transmission;

[0073] The time-domain resource information corresponding to the first transmission;

[0074] The effective conditions corresponding to the first transmission resource;

[0075] The conditions under which the first device transmits data on the first transmission resource;

[0076] The first device transmits data on the first transmission resource with a threshold value; for example, a predefined threshold value, such as a temperature below threshold value M and / or a temperature above N, the first device reports relevant data on the first transmission resource (D2R resource) configured in the first network unit.

[0077] The first indication information is used to indicate the resource type corresponding to the first transmission resource; in some embodiments, the resource type includes, but is not limited to, periodic resources, semi-persistent resources, and on-demand resources.

[0078] The second indication information is used to indicate the transmission type corresponding to the first transmission resource; here, the transmission type includes, but is not limited to, periodic transmission, semi-persistent transmission, on-demand transmission, and aperiodic transmission. It should be understood that the transmission type corresponding to the first transmission resource is also the reporting type corresponding to the first transmission resource. For example, periodic reporting, semi-persistent reporting, on-demand reporting, and aperiodic reporting.

[0079] If the first signal or channel sent by the first network unit side is not configured, does not indicate, or does not contain a resource type (first indication information) or associated transmission type (i.e., second indication information), the first device performs D2R transmission on the first transmission resource in an on-demand manner; or the first device (e.g., an A-IoT device) defaults to the first transmission resource being a D2R resource that supports on-demand reporting.

[0080] Preferably, code points are used to indicate reporting type-related information. In some embodiments, 11: indicates activation of periodic / semi-persistent reporting associated with D2R resources; 10: indicates deactivation of D2R resources; 01: indicates activation of on-demand reporting associated with D2R resources; 00: indicates deactivation of on-demand reporting associated with D2R resources or deactivation of D2R resources. Alternatively, 11 indicates activation of semi-persistent reporting associated with D2R resources; 10: indicates deactivation of semi-persistent reporting associated with D2R resources; 01: configures and activates non-periodic reporting associated with D2R resources.

[0081] The third indication information is used to indicate the association between the resource type corresponding to the first transmission resource and the transmission type corresponding to the first transmission resource.

[0082] Preferably, a bitmap is used to indicate the association between resource type and transmission type. As shown in Table 1, the four bits b0, b1, b2, and b3 correspond to the D2R signal / channel reporting type indication information associated with the D2R resource.

[0083] Table 1

[0084] In some embodiments, periodic reporting corresponds to the first bit b0, where b0 = 1 indicates configuring periodic D2R resources and activating periodic reporting, and b0 = 0 indicates deactivating the aforementioned periodic D2R resources. It should be noted that this is not deactivating periodic reporting; once the resource is deactivated, it no longer exists for the device. Furthermore, activating and deactivating periodic D2R resources require independent R2D signals or channels. Specifically, the first R2D signal or channel (i.e., the first signal or channel) configures the periodic D2R resource and activates the associated periodic transmission (i.e., periodic D2R reporting transmission), and the second R2D signal or channel (i.e., the fifth signal or channel mentioned later) indicates deactivation of the aforementioned periodic D2R resource. Once periodic reporting is activated, and before the periodic resource is deactivated, the first device continuously performs periodic reporting according to the configuration of the first network element.

[0085] The second bit, b1=1, indicates activation of semi-persistent reporting associated with D2R resources, while b1=0 indicates deactivation of semi-persistent reporting associated with D2R resources. The meanings of bits b2 and b3 follow the same pattern. It should be noted that, unlike periodic reporting, this deactivates semi-persistent reporting rather than D2R resources. The resource is not deactivated, and the corresponding semi-persistent reporting can be repeatedly activated and deactivated; that is, semi-persistent reporting can be reactivated after being deactivated. Activating and deactivating semi-persistent reporting associated with D2R resources requires independent R2D signals or channels. Specifically, a first R2D signal or channel (i.e., the first signal or channel) configures a periodic or semi-persistent D2R resource and activates the associated semi-persistent transmission (i.e., semi-persistent D2R reporting transmission). A second R2D signal or channel (i.e., the fifth signal or channel mentioned later) instructs the deactivation of the associated semi-persistent D2R reporting. Alternatively, in some embodiments, the first R2D signal or channel (i.e., the first signal or channel) configures a D2R resource and activates the associated semi-persistent transmission. A second R2D signal or channel (i.e., the fifth signal or channel mentioned later) instructs the deactivation of the associated semi-persistent D2R reporting. A third R2D signal or channel activates the first R2D signal or channel to configure the associated semi-persistent transmission. Once semi-persistent reporting is activated, the first device continuously performs semi-persistent reporting according to the configuration of the first network device until it is deactivated.

[0086] The third bit b2=1 indicates activation of the on-demand reporting associated with the D2R resource, while b2=0 indicates deactivation of the on-demand reporting associated with the D2R resource. Similar to semi-persistent reporting, if the aforementioned D2R resource is not deactivated, the corresponding on-demand reporting can be repeatedly activated and deactivated; that is, an on-demand reporting can be reactivated after being deactivated. Activating and deactivating on-demand reporting associated with D2R resources requires independent R2D signals or channels. Specifically, a first R2D signal or channel configures periodic / semi-persistent / on-demand D2R resources and activates on-demand D2R reporting transmission associated with that resource; a second R2D signal or channel (i.e., the fifth signal or channel mentioned later) instructs deactivation of the aforementioned on-demand D2R reporting associated with that resource. Alternatively, in some embodiments, a first R2D signal or channel configures periodic / semi-persistent / on-demand D2R resources and activates on-demand D2R reporting transmission associated with that resource; a second R2D signal or channel (i.e., the fifth signal or channel mentioned later) instructs deactivation of the aforementioned on-demand D2R reporting associated with that resource; and a third R2D signal or channel activates the first R2D signal or channel to configure on-demand reporting associated with the D2R resource. Once on-demand reporting is activated, and before it is deactivated, the first device continuously performs on-demand reporting according to the first network element configuration if the reporting conditions are met.

[0087] If the fourth bit b3 = 1, it indicates that the aperiodic one-time reporting / transmission associated with the periodic / semi-persistent / on-demand / aperiodic D2R resource is activated; if b3 = 0, it indicates that the aperiodic reporting associated with the above D2R resource is deactivated. Aperiodic reporting is a one-time reporting and will not be continuous.

[0088] The description / principle of this embodiment also applies to the following embodiments, and will not be repeated hereafter.

[0089] In some embodiments, the first device identification information is configured by the first network unit, or the first device obtains the first device identification information by reporting after the first device successfully accesses the network, or the first device identification information is obtained by randomly accessing relevant information.

[0090] The first device identification information, Device ID, can be a unique identifier reported by the first device to the first network unit after successful network access, or a unique identifier obtained by the first network unit. Alternatively, the first device identification information, Device ID, can be defined as being carried in random access related information. That is, Device ID is obtained through random access related information, for example, the first device identification information fed back to the network by the first device via Msg3 during 4-step or 3-step random access, or the first device identification information fed back to the network by the first device via Msg1 during 2-step or 1-step random access. Here, the first device identification information is generally EPC information or part of EPC information, and is the unique identifier of the first device; while the 16-bit random number (RN) value transmitted to the first network unit via Msg1 during 4-step or 3-step random access is a RN value. Different first devices can generate the same RN value, and this RN value or the information carried by Msg1 is not the first device identification information described in this disclosure. Preferably, the first device identification information is explicitly carried in the payload of the first signal or channel. Subsequent embodiments are similar and will not be described further.

[0091] The first device identification information, Device ID, can also be the ID information configured by the first network unit for the first device via R2D signals or channels. In some embodiments, the length of the first device identification information is less than the length of the device EPC information.

[0092] It should be noted that if Msg0 is not included, it corresponds to a 3-step random access procedure, which includes Msg1, Msg2, and Msg3. However, if Msg0 is included, it corresponds to a 4-step random access procedure. Therefore, the 3-step random access procedure in this disclosure has the same meaning as 3-step or 4-step random access and applies to all embodiments of this disclosure, which will not be elaborated further hereafter.

[0093] In some embodiments, if the carrier corresponding to the first device is provided externally, the frequency domain resource information corresponding to the first transmission includes one or more of the following:

[0094] The chip length corresponding to the first transmission, such as the D2R chip length;

[0095] The chip period corresponding to the first transmission, such as the D2R chip period;

[0096] Frequency shift factor M value;

[0097] The fourth indication information is used to indicate whether the waveform of the second signal or channel is single-sideband or double-sideband.

[0098] In this embodiment, the first device can determine the channel bandwidth and the position of the center frequency based on the chip period Ts and the frequency shift factor. In some embodiments, if the first signal or channel is also configured with fourth indication information, the first device can generate an indication waveform according to the indication of the first network unit. If this indication is defaulted, the first device will use a double-sideband waveform. For double-sideband transmission, the transmission bandwidth B = 2 / Ts; for single-sideband transmission, the transmission bandwidth B = 1 / Ts.

[0099] In some embodiments, if the carrier corresponding to the first device is generated internally by the device, then the frequency domain resource information corresponding to the first transmission includes one or more of the following:

[0100] The center frequency point corresponding to the first transmission;

[0101] The bandwidth corresponding to the first transmission;

[0102] The starting frequency of the first transmission;

[0103] The termination frequency of the first transmission.

[0104] Here, the first network unit configures D2R frequency domain resources for the first device. Preferably, the first network unit configures the center frequency and bandwidth of the D2R frequency domain resources for the first device, because low-power devices may not have Fast Fourier Transform (FFT) capabilities and cannot obtain a frequency reference point. In some embodiments, the first network unit configures the start and end frequencies of D2R transmission for the first device.

[0105] In this embodiment, the carrier corresponding to the first device is generated internally by the device, and the passive device generates the carrier internally according to the instruction of the first network unit and performs D2R transmission on the corresponding frequency domain resources.

[0106] In some embodiments, the time-domain resource information corresponding to the first transmission includes one or more of the following:

[0107] The length information of the time-domain resource; in some embodiments, the length of the time-domain resource is a multiple of the chip length, such as X times, where X can be a fraction or an integer. Preferably, the chip length corresponds to the chip length associated with the preamble of the first signal or channel, for example, it can be equal to the chip length of the preamble itself, or it can be equal to the chip length explicitly or implicitly indicated by the preamble. In some embodiments, the length of the time-domain resource is a multiple of the OFDM symbol. The subcarrier spacing (SCS) of the OFDM symbol is pre-agreed by the protocol; or it is kept consistent according to the SCS of the first signal or channel; or the first signal or channel explicitly indicates SCS-related information.

[0108] The transmission period of time-domain resources; in some embodiments, the transmission period of time-domain resources is a predetermined value of the protocol, such as 1 second, 2 seconds, 5 seconds, 10 seconds, 20 seconds, etc.

[0109] The number of time-domain resources that the first device is allowed to transmit; preferably, one transmission cycle corresponds to one D2R resource (one first transmission resource), or one transmission cycle contains at least one first transmission resource. The first device determines the number of time-domain resources that the first device needs to transmit based on this information.

[0110] Starting point information for time-domain resources.

[0111] In some embodiments, before sending the first signal or channel to the first device, the method of this disclosure further includes:

[0112] Obtain the device capability information of the first device.

[0113] Wherein, after obtaining the device capability information of the first device, the first network unit configures the first transmission resources for the first device according to the device capability information of the first device, and obtains the resource configuration information.

[0114] It should be noted that after the first device is actually deployed, the first network unit can make the first device capability reporting request and reporting process, which is the subsequent embodiment part related to "obtaining the device capability information of the first device".

[0115] Of course, the first device capability reporting process can also be completed at the factory, reporting to the core network. After the first network unit completes its inventory operation, the core network sends the device capabilities to the first network unit (e.g., a Reader) or the sensing server. In this scenario, once the inventory process is completed after the first device is actually deployed, the first network unit obtains the first device identification information. The first network unit can then obtain the device capability information through interaction with the core network or the sensing server.

[0116] In some embodiments, obtaining the device capability information of the first device includes:

[0117] Send a third signal or channel to the first device, the third signal or channel carrying fifth indication information requesting the reporting of device capabilities and the transmission resources of the fourth signal or channel, the third signal or channel being a signal or channel from the first network unit to the first device, the fifth indication information including device type and / or device capabilities;

[0118] It should be understood that the third signal or channel may also be referred to as an R2D signal or channel carrying a device capability reporting indication. In some embodiments, the device type includes at least one or more of the following: Device 1, Device 2a, Device 2b, Device 2c, Device 3.

[0119] Device 1 has a peak power consumption of approximately 1 μW and generates a D2R signal by backscattering an externally provided carrier.

[0120] Device 2a: Peak power consumption is less than a few hundred μW. It generates D2R signals by backscattering an externally provided carrier. The device supports forward / reverse link amplification functions.

[0121] Device 2b: Peak power consumption is less than a few hundred μW, supports forward / reverse link amplification, and D2R signals and carriers are generated internally by the device.

[0122] Device 2c / Device 3: Peak power consumption is ten times or more higher than Device 2b / 2a, for example, peak power consumption is 1 to 10mW, generated internally by D2R signals and carrier devices.

[0123] In some embodiments, the device capabilities may include at least one or more of the following: environmental sensing, such as temperature, humidity, air quality, etc.; fire monitoring; fault detection; safety information reporting; smart grid information reporting; warehousing / logistics; and location information.

[0124] The system receives a fourth signal or channel transmitted by the first device through the transmission resource. The fourth signal or channel is a signal or channel from the first device to the first network unit (i.e., D2R) and is used for device capability reporting.

[0125] That is, the first device reports its capabilities to the first network unit based on the R2D signal or channel carrying the device capability reporting instruction. Then, the first network unit reports the device capabilities reported by the first device to the server (such as a sensing server) or the core network.

[0126] In some embodiments, the fourth signal or channel includes one or more of the following:

[0127] A frame identifier used to characterize the device capabilities of the first device; in some embodiments, frame identifier reporting is based on code points. For example, 3 bits can represent 8 types of D2R frames, and a frame characterizing the device capabilities of the first device corresponds to one code point.

[0128] Equipment type;

[0129] The first device supports device capabilities; in some embodiments, device type and / or device capabilities supported by the first device are reported based on a bitmap method. For example, a first set of bits corresponds to the device type, a second set of bits corresponds to the device capability, and each bit indicates the device type or device capability in the form of a code point. For example, as shown in Table 2 below.

[0130] Table 2

[0131] Resource request information; here, the first device requests the first network unit to configure DO-A D2R resources, or requests the desired D2R resource association information, such as whether the D2R resource type is periodic, semi-persistent, or on demand.

[0132] Preference information for resource configuration parameters; here, preference information for resource configuration parameters, such as resource period, resource time domain length, or frequency domain information, etc.

[0133] The preferred information of transmission parameters associated with resources includes, for example, the modulation-related preferences and coding parameter preferences adopted by the first device on the D2R resource (first transmission resource). For example, preferred modulation parameters include QPSK, BPSK, MSK, or OOK modulation, and preferred coding parameters include convolutional code, Manchester code, polar code, forward error correction code (LDPC), linear error correction code (RM), Miller code, or scaling factor (SWM factor), etc.

[0134] The resource request information, the resource configuration parameter preference information, and the resource-associated transmission parameter preference information are all used to assist the first network unit in configuring the resources for the first transmission.

[0135] It should be noted that the device type and supported capabilities of the first device are essential for the first network unit to perform resource configuration. The resource request information, the resource configuration parameter preference information, and the resource-associated transmission parameter preference information are auxiliary information that facilitates D2R resource configuration on the first network unit side.

[0136] In some embodiments, the third signal or channel includes one of the following:

[0137] The response message of message 1 during the first device's 4-step or 3-step random access process; or,

[0138] The paging message during the first device's 2-step or 1-step random access process.

[0139] In some embodiments, the fourth signal or channel is a response message to message 2 during the first device's 4-step or 3-step random access process, or a response message to a paging message during the first device's 2-step or 1-step random access process.

[0140] In scenario one, the first network unit, such as the Reader side, sends a third signal or channel (R2D signal / channel). The third signal or channel is Message 2 (Msg2) sent by the Reader to the first device during the 4-step or 3-step random access process, which is the response information of Message 1 (Msg1) during the random access process.

[0141] The first device, such as an IoT device, sends a fourth signal or channel (D2R signal / channel). The fourth signal or channel is Message 3 (Msg3) in the first device's 4-step or 3-step random access process, which is the response information of Msg2. The Msg3 also carries the first device identification information Device ID.

[0142] In this scenario, the R2D and D2R signals or channels during the random access process can be used to complete equipment inventory while simultaneously obtaining equipment capability information. Since no additional R2D and D2R signals or channels are required, the overhead of the R2D and D2R preamble synchronization sequence and the CRC overhead of the Cyclic Redundancy Check (CRC) encoding can be significantly reduced, which helps to reduce system overhead and save the power of the first device.

[0143] In scenario two, the first network unit, such as the Reader side, sends a third signal or channel (R2D signal / channel). The third signal or channel is Message 0 (Msg0) sent by the first network unit to the first device during the 2-step or 1-step random access process of the first device. This is the paging message of the first device, and Msg0 also carries the paging message.

[0144] The first device, such as an IoT device, sends a fourth signal or channel (D2R signal / channel). The fourth signal or channel is Message 1 (Msg1), i.e., the response information of Msg0, in the first device's 2-step or 1-step random access process, and also carries the first device identification information Device ID.

[0145] Similar to Case 1, this method utilizes R2D and D2R signals or channels during random access to obtain equipment capability information while simultaneously performing equipment inventory. This reduces R2D and D2R channel overhead. This method is applicable to the first device's 2-step random access process, at least for non-contention-based random access processes, and can also be applied to contention-based 2-step random access processes.

[0146] In some embodiments, the third signal or channel is a signal or channel sent by the first network unit after the first device completes random access and the first network unit obtains the first device identification information.

[0147] The third signal or channel carries at least one first device identification information, each first device corresponds to a fifth indication information, and each first device corresponds to a fourth signal or channel transmission resource.

[0148] That is, the first network unit, such as the Reader side, sends a third signal or channel (R2D signal / channel). The third signal or channel is the R2D command signal or channel after the first device is randomly connected. In other words, the third signal or channel is the R2D signal / channel sent by the first network unit after the first device is randomly connected and the first network unit obtains the first device identification information A-IoT Device ID (such as the globally unique identifier EPC or partial EPC information).

[0149] The third signal or channel carries one or more Device ID information to indicate that one or more first devices (such as A-IoT devices) report device capabilities and to configure D2R resources for the corresponding D2R signal / channel of one or more devices. In some embodiments, the third signal or channel also carries a Command identifier, for example, 1 bit representing an R2D Command frame.

[0150] On the first device side, the fourth signal or channel is transmitted on the resources allocated to the R2D signal or channel (the third signal or channel). Preferably, the fourth signal or channel carries the first device identification information. Of course, the fourth signal or channel may also not carry the Device ID to reduce device power consumption.

[0151] In this embodiment, the third signal or channel carries one or more Device IDs. When it carries multiple Device IDs, it should be understood that it is actually a group common signal or channel (i.e., the first network unit sends the third signal or channel to at least one first device through multicast). This can effectively reduce network system overhead and, at the same time, it is separated from the random access process, so as not to affect the compatibility of the previous devices.

[0152] The following embodiment illustrates the specific implementation process by which a first network unit (such as a Reader) obtains device capability information of a first device (such as an A-IoT device).

[0153] Example 1

[0154] The Reader sends the R2D signal / channel carrying the device capability reporting indication and the corresponding transmission resources for the D2R signal / channel used for device capability reporting.

[0155] According to the Reader's instructions, the A-IoT device sends a D2R signal / channel on the corresponding transmission resource. This D2R signal / channel carries device capability reporting information.

[0156] The equipment capability reporting indication includes two parts: equipment type and / or equipment capability, as shown in Table 3:

[0157] Table 3: R2D Device Capability Request / Indication Fields

[0158] For example, if the device type field corresponds to a bit of 1 and the device function type is 0, then the A-IoT device only needs to report the device type and does not need to report the device function.

[0159] The device type includes at least one or more of the following: Device 1, Device 2a, Device 2b, Device 2c, Device 3.

[0160] In some embodiments, the device capabilities may include at least one or more of the following: environmental sensing, such as temperature, humidity, air quality, etc.; fire monitoring; fault detection; safety information reporting; smart grid information reporting; warehousing / logistics; and location information.

[0161] The A-IoT device reports its capabilities to the Reader based on the R2D instruction (via D2R signal or channel), and then reports the device capabilities to the server (such as the sensor server) or the core network.

[0162] In some embodiments, the D2R signal or channel includes one or more of the following information:

[0163] D2R device capability reporting frame identification information is preferably reported based on code points. For example, 3 bits can represent 8 types of D2R frames, with each capability reporting frame corresponding to a code point.

[0164] Equipment type;

[0165] Device supported function type information; in some embodiments, device type and / or device supported function type information is reported based on a bitmap method. For example, the first bit set corresponds to the device type, the second bit set corresponds to the device capability, and each bit indicates the device type or device capability in the form of a code point, as shown in Table 2 above.

[0166] D2R resource request information; for example, an A-IoT device requests the Reader to configure DO-A's D2R resources, or requests the desired D2R resource association information, such as whether the D2R resource type is periodic, semi-continuous, or on demand.

[0167] D2R resource configuration parameter preference information; such as resource period, resource time domain length, or frequency domain information, etc.

[0168] The D2R resource is associated with preferences for transmission parameters. For example, A-IoT devices may use modulation-related preferences and coding parameter preferences on D2R resources. For instance, preferred modulation parameters include QPSK, BPSK, MSK, or OOK modulation, while preferred coding parameters include Convolutional code, Manchester code, Polar code, LDPC code, RM code, Miller code, or SWM factor.

[0169] The A-IoT device type and function reporting information is essential for the Reader to perform resource configuration. D2R resource request information, D2R configuration parameter preference information, and D2R resource associated transmission parameter preference information are auxiliary information that helps the Reader to perform D2R resource configuration.

[0170] In this embodiment, the R2D signal / channel used to indicate the capability reporting of A-IoT devices is the same as the corresponding D2R signal / channel used for device capability reporting.

[0171] Alt1: The Reader sends an R2D signal / channel. The R2D signal / channel is Message 2 (Msg2) sent by the Reader to the A-IoT device during the 3-step random access process, which is the response information to Message 1 (Msg1) during the random access process. In other words, Msg2 is used to instruct the device to report its capabilities.

[0172] The A-IoT device sends a D2R signal / channel, which is the Msg3 response information of Msg2 in the 3-step random access process of the A-IoT device. This Msg3 also carries the Device ID.

[0173] This scheme utilizes R2D and D2R signals or channels during the random access process to obtain device capability information while completing device inventory. Since no additional R2D and D2R signals or channels are required, it can significantly reduce the overhead of R2D and D2R preamble synchronization sequences and CRC encoding, which helps to reduce system overhead and save power for A-IoT devices.

[0174] Alt2: The Reader sends an R2D signal / channel. The R2D signal / channel is the Msg0 sent by the Reader to the A-IoT device during the 2-step random access process of the A-IoT device. This is the A-IoT paging message. This signaling also carries the paging message.

[0175] The A-IoT device sends a D2R signal / channel, which is either a D2R signal or a response signaling message of Msg1 (Msg 0) in the A-IoT device's 2-step random access process, and carries Device ID information.

[0176] Similar to Alt1, this method utilizes R2D and D2R signals or channels during the random access process to obtain device capability information while completing device inventory. This reduces R2D and D2R channel overhead. This method is applicable to the 2-step random access process for A-IoT devices, at least for non-contention-based random access processes, and can also be applied to contention-based 2-step random access processes.

[0177] Alt3: The Reader sends an R2D signal / channel. The R2D signal / channel is the R2D command signal or channel sent after an A-IoT device randomly connects. Specifically, it's the R2D signal / channel sent by the Reader after obtaining the A-IoT Device ID (e.g., a globally unique EPC identifier or partial EPC information). This R2D signal / channel also carries one or more Device IDs to indicate the reporting capabilities of one or more A-IoT devices and to configure D2R resources for the D2R signal or channel corresponding to one or more A-IoT devices. In some embodiments, the R2D signal / channel may also carry a command signaling identifier, for example, 1 bit representing an R2D command frame.

[0178] A-IoT devices transmit D2R signals / channels, specifically on the resources allocated for R2D signals / channels. These D2R signals / channels may or may not carry a Device ID; omitting the Device ID reduces device power consumption.

[0179] Here, the R2D signal / channel can carry one or more Device IDs. When carrying multiple Device IDs, it should be understood that it is actually a group common signal or channel, which can effectively reduce network system overhead and separate it from the random access process, so as not to affect the compatibility of the previous equipment.

[0180] Preferably, the A-IoT device capability reporting process can be completed at the factory by reporting to the core network. After the Reader completes the inventory operation, the core network sends the device capabilities to the Reader or a server, such as a Sensor server. In this case, once the inventory process is completed after the actual deployment of the device, the Reader obtains the Device ID and can obtain the device capabilities through interaction with the core network or server. Alternatively, after the actual deployment of the A-IoT device, the Reader can initiate the A-IoT device capability reporting request and reporting process, and then the device capabilities are transmitted by the Reader to the core network or server.

[0181] The capabilities of the devices are directly related to the sensing application scenarios supported by the A-IoT devices. The network side can configure different D2R service reporting types according to different device capabilities. For example, the network side can configure on-demand reporting resources for urgent and infrequent services such as fire alarm detection, while configuring periodic reporting resources for environmental sensing services. This can depend on the implementation on the Reader side.

[0182] The following embodiment illustrates the specific implementation process of a first network unit (such as a Reader) sending an R2D signal / channel carrying resource configuration information to a first device (such as an A-IoT device) in a unicast manner.

[0183] Example 2

[0184] The Reader uses a random access procedure to determine the A-IoT device ID. The Reader sends a dedicated Dedicated R2D signal / channel to an A-IoT device. The Dedicated R2D signal / channel carries the transmission resources corresponding to the D2R signal / channel configured for the A-IoT device.

[0185] Based on the Dedicated R2D signal / channel sent by the Reader, the A-IoT device periodically, semi-persistently, or on-demand reports one or more D2R signals / channels on the indicated or configured transmission resources. The specific process is as follows:

[0186] Step 1: The Reader initiates a random access process, the A-IoT device successfully accesses the network, and the Reader determines the A-IoT device ID.

[0187] Taking a 3-step random access process as an example, the Reader and the A-IoT device sequentially send Msg0 --> Msg1 --> Msg2 --> Msg3. The A-IoT device sends its Device ID to the Reader via Msg3. For a 2-step random access process, the Reader and the A-IoT device sequentially transmit Msg0 --> Msg1. The A-IoT device sends its Device ID to the Reader via Msg1.

[0188] Step 2: Preferably, the Reader side determines the device capabilities according to the scheme of Embodiment 2.

[0189] Step 3: The Reader sends a first R2D signal / channel to the successfully connected A-IoT device. This first R2D signal / channel is a Dedicated R2D signal / channel, carrying the DO-A transmission resources and D2R reporting type association information configured by the Reader for the A-IoT device.

[0190] For example, the first R2D signal / channel can be defined as Msg4. Here, Msg4 is completely different from Msg4 in NR or LTE systems. It has no contention resolution function, carries DO-A resource configuration information, and the payload of the R2D signal or channel explicitly carries device ID information. Preferably, the device ID is an identifier stored by the device, such as a globally unique EPC identifier, rather than an ID configured by the base station. Moreover, the R2D signal does not have PDCCH scheduling.

[0191] In the NR / LTE system, Msg4 is an acknowledgment message for Msg3. It is scheduled by the PDCCH channel and transmitted on the PDSCH channel. Its purpose is to complete the contention resolution and establish the RRC connection. The CRC of the PDSCH carrying Msg4 is scrambled by the Temporary Cell Radio Network Temporary Identity (TC-RNTI). This PDSCH contains the UE contention resolution identifier, so the T-RNTI is upgraded to the C-RNTI for the UE, thus completing the random access procedure.

[0192] Step 4: In some embodiments, after successfully decoding the resource configuration information, the A-IoT device responds / acknowledges a signal / channel to the Reader.

[0193] Step 5: The A-IoT device sends D2R signals / channels on the corresponding resources according to the Reader's instructions.

[0194] Step 6: The Reader sends a dedicated R2D signal / channel to the A-IoT device to deactivate the D2R reporting associated with the D2R resource configured in step 3 or to deactivate the D2R resource configured in step 3.

[0195] Step 7: The A-IoT device activates the D2R resource configured in step 3 or activates the D2R reporting associated with the resource configured in step 3 according to the Reader's instructions.

[0196] More specifically, in step 3, the Reader sends the resource configuration information carried by the first R2D signal / channel to the A-IoT device. The location of the resource configuration information in the first R2D signal / channel, or the association between the resource configuration information and the fields contained in the first R2D signal / channel, is predefined by the protocol or indicated by control indication information. Preferably, the control indication information is carried in the first R2D signal or channel.

[0197] In step 3, the Reader sending the first R2D signal / channel to the A-IoT device also includes one or more of the following configuration information:

[0198] ① Frame type indication information / resource configuration frame type indication information; the frame type indication information is associated with the service type and / or frame function of the IoT device. For example, at least 2 bits represent the frame type: such as bit 1 1: indicating sensor service or DO-A resource configuration frame (frame function), 10: indicating inventory frame (service type), 0 1: indicating command frame, 00: indicating location frame. If the Reader side does not carry or configure frame type indication information when sending the first R2D signal / channel, the A-IoT device defaults to the first frame type. Preferably, the first frame type is an inventory frame.

[0199] ② Device ID information, preferably one Device ID.

[0200] The Device ID is a unique identifier reported by the A-IoT device to the Reader or obtained by the Reader after the A-IoT device successfully accesses the network. Alternatively, it can be defined as the Device ID information carried in the random access information, such as the Device ID information fed back to the Reader by the A-IoT device via Msg3 during a 4-step or 3-step random access process, or the Device ID information fed back to the Reader by the A-IoT device via Msg1 during a 2-step or 1-step random access process. The Device ID is generally EPC information or partial EPC information, serving as the device's unique identifier. However, the 16-bit RN value transmitted to the Reader via Msg1 during a 4-step or 3-step random access process can be different A-IoT devices generating the same RN value. This RN value or the information carried by Msg1 is not the Device ID information described in this disclosure. Preferably, the A-IoT device identifier information is explicitly carried in the payload of the R2D signal; the same applies to subsequent embodiments, and will not be elaborated further.

[0201] The Device ID is the ID information configured for the A-IoT device by the Reader side via R2D signals or channels. In some embodiments, the length of the Device ID information is less than the length of the Device EPC information.

[0202] It should be noted that if Msg0 is not included, it corresponds to a 3-step random access process, which includes Msg1, Msg2, and Msg3. However, if Msg0 is included, it is a 4-step random access process. Therefore, the meanings of 3-step random access and 3-step / 4-step random access are the same in this paper and apply to all embodiments of this disclosure, which will not be repeated hereafter.

[0203] ③ Waveform information of the D2R signal / channel transmission corresponding to the D2R resource, for example, at least 1 bit, indicating different D2R transmission waveforms, such as 1 1: representing OFDM waveform, 1 0: representing single-sideband waveform, 0 1: representing double-sideband waveform. The A-IoT device generates the corresponding waveform D2R signal / channel according to the Reader's instructions.

[0204] If the first R2D signal / channel sent by the Reader side is not configured or does not indicate waveform information, the A-IoT device side defaults to using the first waveform for D2R resource transmission. Preferably, the first waveform is predefined waveform information in the protocol, such as a double-sideband waveform based on a single carrier.

[0205] ④ Modulation information for D2R signal / channel transmission corresponding to D2R resources, for example, at least 1 bit, indicating different D2R modulation schemes. 1 1: BPSK, 1 0: QPSK, 0 1: FSK, 0 0: MSK. The A-IoT device generates the corresponding modulation scheme D2R signal according to the Reader's instructions.

[0206] If the first R2D signal / channel sent by the Reader side is not configured or does not indicate modulation information, the A-IoT device side defaults to using the first modulation scheme for D2R resource transmission. Preferably, the first modulation scheme is a predefined modulation scheme in the protocol, such as BPSK or QPSK.

[0207] ⑤ Frequency domain resource information corresponding to D2R transmission resources, including:

[0208] 1. The D2R frequency domain resource information configured by the Reader for A-IoT devices includes one or more of the following: D2R chip length, D2R chip period, frequency shift factor M value, single-sideband indication information, and double-sideband indication information.

[0209] In this scenario, the A-IoT device is one whose carrier wave is provided externally (based on backscattering). The A-IoT device determines the channel bandwidth and center frequency position based on the chip period Ts and the frequency shift factor. In some embodiments, if the R2D signal is also configured to have a single-sideband or double-sideband waveform, the A-IoT device generates an indication waveform based on the Reader instruction. If this instruction is defaulted, the A-IoT device will use a double-sideband waveform; for double-sideband transmission, the transmission bandwidth B = 2 / Ts, and for single-sideband transmission, the transmission bandwidth B = 1 / Ts.

[0210] 2. The Reader configures D2R frequency domain resource information for A-IoT devices. Preferably, the configured D2R frequency domain resource information includes the center frequency and bandwidth of the D2R frequency domain resources, because low-power devices may not have FFT capabilities and cannot obtain a frequency reference point; in some embodiments, the configured D2R frequency domain resource information includes the start and end frequency of D2R transmission.

[0211] In this scenario, the A-IoT device generates the corresponding carrier wave internally, while the passive device generates the carrier internally according to the Reader's instructions and performs D2R transmission on the corresponding frequency domain resources.

[0212] ⑥ Time-domain resource information corresponding to one or more D2R transmission resources, which may specifically include one or more of the following:

[0213] The length information of a D2R time-domain resource.

[0214] In some embodiments, the length of a D2R time-domain resource is a multiple of the chip length, such as X times, where X can be a fraction or an integer. Preferably, the chip length corresponds to the chip length associated with the preamble of the aforementioned R2D signal / channel, for example, it can be equal to the chip length of the preamble itself, or it can be equal to the chip length explicitly / implicitly indicated by the preamble.

[0215] In some embodiments, the length of a D2R time-domain resource is a multiple of the OFDM symbol. The SCS of the OFDM symbol is pre-defined by the protocol; or it is kept consistent with the R2D signal / channel SCS; or the R2D signal / channel explicitly indicates SCS-related information.

[0216] The transmission period of D2R time-domain resources. In some embodiments, the transmission period is a predetermined value of the protocol, such as 1 second, 2 seconds, 5 seconds, 10 seconds, 20 seconds, etc.

[0217] The starting point information of a D2R time-domain resource.

[0218] Information on the number of D2R time-domain resources that the device is allowed to transmit. Preferably, one transmission cycle corresponds to one D2R time-domain resource, or one transmission cycle contains at least one D2R time-domain resource. The A-IoT device uses this information to determine the number of D2R time-domain resources that the A-IoT device needs to transmit.

[0219] Specifically, the A-IoT device determines the effective time of the D2R time domain resources reported by the A-IoT device based on the time domain resource information configured in the R2D signal / channel configuration. The specific implementation steps include:

[0220] A-IoT devices determine the initial D2R reporting or transmission of resources.

[0221] (1) The D2R transmission resources configured for the R2D signal / channel take effect after the ending point delay T_delay of the R2D signal / channel.

[0222] The starting valid D2R resource is the first complete D2R resource after a delay of T_delay following the ending point of the R2D signal / channel; equivalently, the A-IoT device reports / transmits data on the D2R resource configured with resource configuration information after a delay of T_delay following the receipt of the R2D signal / channel.

[0223] T_delay is greater than or equal to (i.e., at least not less than) T. R2D _min, the T R2D `_min` represents the minimum time required for an A-IoT device to receive an R2D signal and transmit a D2R signal. This time is sufficient for the A-IoT device to demodulate the R2D frame, perform transmit / receive conversion, and also for energy storage (energy harvesting). As shown in Figure 6, the R2D signal / channel is a D2R resource configuration frame, configuring a D2R resource with a period of T. In the figure, the first D2R resource overlaps with the T_delay time interval after the ending point of the R2D signal / channel; therefore, the first D2R resource is invalid. D2R resources located beyond the ending point of the R2D signal / channel by more than T_delay are valid. The first D2R resource satisfying these conditions is the initially valid D2R resource.

[0224] (2) The D2R transmission resources configured by the R2D signal / channel take effect after the ending point delay T_delay of the D2R response or acknowledgment signal corresponding to the R2D signal / channel; the starting valid D2R resource is the first (complete) D2R resource after the ending point T_delay of the D2R response / acknowledgment signal; the A-IoT device reports / transmits the D2R resources configured by the resource configuration information after the T_delay of sending the D2R response or acknowledgment signal.

[0225] T_delay is greater than or equal to (i.e., at least not less than) T D2R_D2R_min :T D2R_D2R_min T is the minimum time interval between two distinct and consecutive D2R transmissions from an A-IoT device. D2R_D2R_min It can be used for Reader demodulation, and preferably for passive device energy harvesting. As shown in Figure 7, the R2D signal / channel is a D2R resource configuration frame, configuring a D2R resource with a period of T. After receiving the R2D signal / channel, the A-IoT device first sends back a D2R response / acknowledgment frame, such as an ACK / NACK message, to inform the Reader that the resource configuration frame has been received. In Figure 7, if the first D2R resource overlaps with the T_delay time interval after the ending point of the D2R acknowledgment frame, then the first D2R resource is an invalid D2R resource. D2R resources that are more than T_delay after the ending point of the D2R acknowledgment frame are valid D2R resources. The first D2R resource that meets the above conditions is the initially valid D2R resource.

[0226] It should be noted that A-IoT devices only transmit D2R signals / channels on available D2R resources.

[0227] (3) Under the premise of satisfying (1) or (2) above, the D2R resource must also be a valid uplink UL time slot (if A-IoT supports Time Division Duplexing (TDD) system), or the D2R resource is within the available time of the device indicated by the Reader side (when the device has completed charging), or the D2R resource does not overlap with the transmission time of Msg1 and Msg3.

[0228] Otherwise, A-IoT devices will not transmit D2R signals / channels on the aforementioned D2R resources.

[0229] (4) In some embodiments, the effective time or effective condition of the D2R transmission resource can be configured by a first signal or channel, for example, the R2D signal or channel carries parameters for the effective D2R transmission resource, such as time parameters.

[0230] ⑦ Conditions or thresholds for A-IoT devices to transmit data on D2R resources. For example, predefined thresholds, such as temperatures below threshold M and / or temperatures above threshold N, will cause A-IoT devices to report on the D2R resources configured in the Reader.

[0231] ⑧ The resource type or transmission (reporting) type information associated with the D2R resource indicates the device reporting information corresponding to the D2R resource configured in the Reader. Preferably, the transmission type indication is the indication information of periodic reporting, semi-persistent reporting, on-demand reporting, or aperiodic reporting associated with the D2R resource.

[0232] If the Reader sends the first R2D signal or the channel is not configured, not indicated, or does not contain the resource type associated with the D2R resource or the reporting type associated with the D2R resource, the A-IoT device performs D2R transmission on the D2R resource in on-demand mode; or the A-IoT device defaults to the D2R resource being a D2R resource that supports on-demand reporting.

[0233] Preferably, code points are used to indicate the reporting type information: 1 1: activate periodic / semi-continuous reporting associated with D2R resources; 1 0: deactivate D2R resources; 0 1: activate on-demand reporting associated with D2R resources; 0 0: deactivate on-demand reporting associated with D2R resources or deactivate D2R resources.

[0234] Alternatively, 1 1: activate semi-persistent reporting for D2R resource association; 1 0: deactivate semi-persistent reporting for D2R resource association; 0 1: configure and activate non-periodic reporting for D2R resource association.

[0235] Preferably, a bitmap is used to indicate the reporting type information, as shown in Table 3 above. The four bits b0, b1, b2, and b3 correspond to the reporting type indication information of the D2R signal / channel associated with the D2R resource.

[0236] Periodic reporting corresponds to the first bit b0. b0 = 1 indicates that periodic D2R resources are configured and periodic reporting is activated; b0 = 0 indicates that the aforementioned periodic D2R resources are deactivated. Note: This is not deactivation of periodic reporting. Once the D2R resource is deactivated, it no longer exists for the A-IoT device. Moreover, activating and deactivating periodic D2R resources require independent R2D signals / channels. That is, the first R2D signal / channel configures the periodic D2R resource and activates the associated periodic D2R reporting transmission, and the second R2D signal / channel indicates deactivation of the aforementioned periodic D2R resource. Once periodic reporting is activated and the periodic resource is not deactivated, the device continues to perform periodic reporting according to the Reader configuration.

[0237] The second bit b1 = 1 indicates activation of semi-persistent reporting associated with D2R resources, while b1 = 0 indicates deactivation of semi-persistent reporting associated with D2R resources. The meanings of bits b2 and b3 follow the same pattern. Note: Unlike periodic reporting, this deactivates semi-persistent reporting rather than D2R resources. The resource is not deactivated, and the corresponding semi-persistent reporting can be repeatedly activated and deactivated; that is, semi-persistent reporting can be reactivated after being deactivated. Activating and deactivating semi-persistent reporting associated with D2R resources requires independent R2D signals / channels. Specifically, a first R2D signal / channel configures a period / semi-persistent D2R resource and activates the associated semi-persistent D2R reporting transmission; a second R2D signal / channel indicates deactivation of the associated semi-persistent D2R reporting. Alternatively, in some embodiments, a first R2D signal / channel configures a D2R resource and activates the associated semi-persistent D2R reporting transmission; a second R2D signal / channel indicates deactivation of the associated semi-persistent D2R reporting; and a third R2D signal / channel activates the first R2D signal / channel to configure the associated semi-persistent reporting. Once semi-persistent reporting is activated, the A-IoT device continuously performs semi-persistent reporting according to the Reader configuration until it is deactivated.

[0238] The third bit b2=1 indicates activation of the on-demand reporting associated with the D2R resource, while b2=0 indicates deactivation of the on-demand reporting associated with the D2R resource. Similar to semi-persistent reporting, if the aforementioned D2R resource is not deactivated, the corresponding on-demand reporting can be repeatedly activated and deactivated; that is, an on-demand reporting can be reactivated after being deactivated. Activating and deactivating on-demand reporting associated with D2R resources requires independent R2D signals / channels. Specifically, a first R2D signal / channel configures a periodic / semi-persistent / on-demand D2R resource and activates on-demand D2R reporting associated with that resource; a second R2D signal / channel indicates deactivation of the aforementioned on-demand D2R reporting. Alternatively, in some embodiments, the first R2D signal / channel configures a periodic / semi-persistent / on-demand D2R resource and activates on-demand D2R reporting associated with that resource; a second R2D signal / channel indicates deactivation of the aforementioned on-demand D2R reporting; and a third R2D signal / channel activates the first R2D signal / channel to configure on-demand reporting associated with the D2R resource. Once on-demand reporting is activated, and before it is deactivated, the A-IoT device continuously performs on-demand reporting according to the Reader configuration if the reporting conditions are met.

[0239] The third bit, b3=1, indicates activation of aperiodic one-time reporting / transmission associated with periodic / semi-persistent / on-demand / aperiodic D2R resources; b3=0 indicates deactivation of aperiodic reporting associated with the aforementioned D2R resources. Aperiodic reporting is a one-time reporting and will not be continuous.

[0240] The reason for supporting different reporting types of D2R resources is based on the device's capabilities. Ideally, for environmental sensing information, smart grid information, or building lifespan-related information, periodic or semi-continuous reporting should be configured. For fire alarm detection information, on-demand reporting can be configured, and reporting can be performed as needed if a fire alarm triggers the reporting conditions. Non-periodic reporting can also be configured for the above information.

[0241] A-IoT devices determine the corresponding D2R time / frequency resources based on the R2D signal / channel configuration, and only transmit D2R channels / signals on valid D2R resources according to the reporting type configured in the R2D configuration.

[0242] It should be noted that the resource configuration information described in Embodiment 2, including resource scheduling-related content such as waveforms and modulation, is also applicable to the broadcast and multicast configuration signaling described in Embodiments 3 and 4, and will not be repeated hereafter.

[0243] In some embodiments, step 501 above, sending the first signal or channel to the first device, includes:

[0244] A first signal or channel is sent to at least one first device via broadcast or multicast, wherein the resource configuration information includes at least one resource configuration information, each resource configuration information being associated with one or more first devices; or, the resource configuration information includes sixth indication information, the sixth indication information being used to indicate a second transmission resource, the second transmission resource being the transmission resource corresponding to the resource configuration frame, the resource configuration frame being used to indicate the first transmission resource.

[0245] This includes two methods for sending the first signal or channel to the first device.

[0246] Method 1: A first signal or channel is transmitted to at least one first device via broadcast. In this method, the at least one first device can be all first devices within the serving cell, such as A-IoT devices.

[0247] For example, the Reader sends R2D signals / channels via broadcast to configure the corresponding transmission resources for A-IoT devices in the serving cell.

[0248] Accordingly, the A-IoT device performs one or more D2R signal / channel transmissions periodically, semi-continuously, or on demand on the corresponding resources, based on the Reader's configuration.

[0249] Firstly, in the broadcast mode, the resource configuration information carried by the first signal or channel includes sixth indication information, which is used to indicate a second transmission resource, the second transmission resource being the transmission resource corresponding to the resource configuration frame, and the resource configuration frame being used to indicate the first transmission resource.

[0250] That is, the first signal or channel sent by the Reader to the A-IoT device carries the transmission resource indication (sixth indication information) corresponding to the D2R resource configuration frame.

[0251] In some embodiments, the first signal or channel is a paging signaling or inventory signaling, such as Msg0.

[0252] In some embodiments, the transmission resource corresponding to the resource configuration frame is a periodic transmission resource; or, the first signal or channel corresponding to the resource configuration frame carries identification information of the first transmission resource. For example, the identification information of the first transmission resource is DO-A resource index information.

[0253] The first network unit sends a resource configuration frame on the transmission resource corresponding to the resource configuration frame, namely the second transmission resource. The resource configuration frame carries the resource configuration of the first transmission resource configured by the first network unit for the first device, as shown in Figure 8. Preferably, the first transmission resource is a periodic or semi-persistent transmission resource.

[0254] It should be understood that the Reader uses R2D signals, such as paging / inventory signaling Msg0, to indicate to A-IoT devices the transmission resources (second transmission resources) corresponding to the D2R resource configuration frame. Since Msg0 is a paging broadcast frame, all A-IoT devices can receive the transmission resources corresponding to the D2R resource configuration frame, which helps reduce network-side overhead and eliminates the need for A-IoT devices to repeatedly receive R2D indications, thus reducing device power consumption. Msg0 is a preferred example; this disclosure does not exclude other R2D broadcast signaling, such as R2D signaling scrambled with Cell ID or Reader ID, or R2D signaling without any ID scrambling.

[0255] The A-IoT device determines the transmission resource corresponding to the D2R resource configuration frame based on the received R2D signal (e.g., paging / inventory signaling Msg0); then, it receives the D2R resource configuration frame on the transmission resource corresponding to the D2R resource configuration frame; finally, it determines the corresponding D2R transmission resource based on the D2R resource configuration frame.

[0256] In both cases, under broadcast mode, the resource configuration information includes at least one, and each resource configuration information is associated with one or more first devices.

[0257] In some embodiments, the first signal or channel is a paging signaling or inventory signaling, such as Msg0.

[0258] It should be understood that the Reader uses R2D signals, such as paging / inventory signaling Msg0, to instruct the A-IoT device on the corresponding transmission resources (first transmission resources) for D2R transmission. These resources are used by the A-IoT device connected to the network to perform D2R transmission. Preferably, the performed D2R transmission is a device-initiated D2R data transmission, as shown in Figure 9.

[0259] Msg0 is an example of broadcast signaling. Other broadcast signaling, such as R2D signaling scrambled with cell ID / reader ID, can also be used to broadcast D2R resource configuration information.

[0260] Method 2: Send a first signal or channel to at least one first device via multicast. In this method, at least one first device can be a group of first devices.

[0261] In multicast mode, the resource configuration information includes at least one resource configuration information, and each resource configuration information is associated with one or more first devices.

[0262] For example, the Reader sends R2D signals / channels via multicast to configure the transmission resources corresponding to the R2D signals / channels for a group of A-IoT devices. That is, the R2D signals / channels carry at least one resource configuration information, and each resource configuration information is associated with one A-IoT device.

[0263] In some embodiments, a first signal or channel transmitted to at least one first device via broadcast or multicast corresponds to at least one first transmission resource, and the resource type associated with each first transmission resource is determined by the first signal or channel. Here, the resource type can be one of the following: periodic resource, semi-persistent resource, or on-demand resource.

[0264] In some embodiments, each first device identification information is associated with a resource type. This association can be determined by a first signal or channel, or by predefined rules. For example, the resource type associated with a first transmission resource can be determined autonomously based on the first device's own capabilities and protocol predefined rules. For instance, a device with fire alarm detection capabilities might choose to associate with an on-demand resource, while a temperature sensor might choose to associate with a periodic resource.

[0265] The following examples illustrate the specific implementation process of a first network unit (such as a Reader) sending an R2D signal / channel carrying resource configuration information to at least one first device (such as an A-IoT device) in a broadcast or multicast manner.

[0266] Example 3: Broadcast Method

[0267] The Reader sends R2D signals / channels via broadcast. The R2D signals / channels carry DO-A resource configuration information configured by the Reader for all A-IoT devices in the serving cell.

[0268] Specifically, the Reader sends R2D signals / channels to broadcast the transmission resources corresponding to the D2R signals / channels to the devices in the serving cell.

[0269] A-IoT devices, based on the Reader configuration, perform one or more D2R signal / channel transmissions on corresponding resources, either periodically, semi-continuously, or on demand.

[0270] Option 1:

[0271] Network-side steps: The Reader sends an R2D signal / channel to the A-IoT device, carrying a transmission resource indication corresponding to the D2R resource configuration frame. The D2R resource configuration frame is an R2D signal / channel used to configure the transmission resources of the DO-A based D2R signal / channel for the A-IoT device.

[0272] For example, the Reader uses R2D signals / channels, such as paging / inventory signaling Msg0, to indicate the transmission resources corresponding to the D2R resource configuration frame to the A-IoT device.

[0273] Preferably, the transmission resource corresponding to the D2R resource configuration frame is a periodic transmission resource.

[0274] Preferably, the R2D signal / channel corresponding to the D2R resource configuration frame carries the D2R resource configuration and the D2R resource identification information, such as DO-A resource index information.

[0275] The Reader sends an R2D signal / channel (resource configuration frame) on the transmission resource corresponding to the resource configuration frame. The R2D signal / channel carries DO-A based D2R resource configuration information, as shown in Figure 8.

[0276] Preferably, the transmission resources associated with the D2R signal / channel are periodic / semi-persistent D2R transmission resources.

[0277] Since Msg0 is a paging broadcast frame, all devices can receive the transmission resources corresponding to this D2R resource configuration frame, which helps reduce network-side overhead and also reduces device power consumption by eliminating the need for devices to repeatedly receive R2D indications. Msg0 is a preferred example, but this disclosure does not exclude other R2D broadcast signaling, such as R2D signaling scrambled with Cell ID or Reader ID, or R2D signaling without any ID scrambling.

[0278] A-IoT device-side steps:

[0279] 1) The A-IoT device receives the R2D signal / channel sent by the Reader. The R2D signal / channel carries the resource configuration (i.e., the sixth indication information) corresponding to the D2R resource configuration frame. The A-IoT device determines the transmission resource corresponding to the D2R resource configuration frame based on the resource configuration corresponding to the D2R resource configuration frame.

[0280] 2) The A-IoT device receives a D2R resource configuration frame on the corresponding transmission resource and determines the corresponding D2R transmission resource based on the D2R resource configuration frame. Preferably, the D2R resource configuration frame is periodically transmitted on the configured resource;

[0281] An A-IoT device will only perform D2R transmission on the corresponding D2R resource after it has identified a DO-A based D2R resource and successfully connected to the network (i.e., at least Msg 3 has been sent). For example, in sensor service transmission, the A-IoT device does not expect to perform D2R transmission on the D2R resource configured by broadcast signaling before it has connected to the network.

[0282] The D2R signal / channel transmitted by the A-IoT device on the DO-A resource carries at least the device ID information. The device ID is the same as in Embodiment 2. For example, it is the Device ID information fed back to the network by the A-IoT device through Msg3 during the 4-step or 3-step random access process, or the Device ID information fed back to the network by the A-IoT device through Msg1 during the 2-step or 1-step random access process.

[0283] On the aforementioned autonomous transmission / scheduled D2R resources, A-IoT devices perform periodic / semi-persistent / on-demand D2R resource transmission according to predefined rules or reporting type indication information. The resource reporting type indication information is the same as in Example 2. The predefined rule is: considering the characteristics of broadcast signaling, for D2R resources configured by broadcast signaling, A-IoT devices preferably use on-demand D2R reporting to save D2R resources.

[0284] Ideally, the D2R resource configuration frame is sent periodically by the Reader using the R2D signal / channel, regardless of whether the device is connected to the network. Only when the A-IoT device is connected to the network and the Reader obtains the device ID can it send the D2R signal / channel on the corresponding D2R resource.

[0285] Option 2:

[0286] Network-side steps: The Reader sends an R2D signal / channel to the A-IoT device. This R2D signal / channel carries D2R resource configuration information, which is associated with the transmission resources of the DO-A based D2R signal / channel, i.e., the transmission resources of the D2R signal / channel that the A-IoT device can send autonomously.

[0287] The Reader uses R2D signals / channels, such as paging / inventory signaling Msg0, to instruct the A-IoT device to transmit corresponding D2R data. These resources are used by the A-IoT device connected to the network to perform D2R transmissions. Preferably, the D2R transmissions performed by the A-IoT device are D2R data transmissions initiated autonomously by the A-IoT device, as shown in Figure 9.

[0288] Preferably, the transmission resources associated with the D2R signal / channel are periodic / semi-persistent D2R transmission resources.

[0289] Preferably, the network side configures resource identification information for the transmission resource, such as DO-A resource index information.

[0290] This transmission resource is used for network access, such as for A-IoT devices that have completed 3-step random access and autonomously perform D2R data transmission; this transmission resource is not used for Msg1 transmission, because the A-IoT device transmitting Msg1 has not yet been connected to the network, and the Reader is unaware of the existence of the A-IoT device at this time.

[0291] Msg0 is an example of broadcast signaling. Other broadcast signaling, such as R2D signaling scrambled with cell ID / reader ID, can also be used to broadcast D2R resource configuration information.

[0292] On the aforementioned autonomous transmission / scheduled D2R resources, A-IoT devices perform periodic / semi-persistent / on-demand D2R resource transmission according to predefined rules or reporting type indication information. The resource reporting type indication information is the same as in Embodiment 2. The predefined rule is: considering the characteristics of broadcast signaling, the D2R resources configured for broadcast signaling. Preferably, A-IoT devices use on-demand D2R reporting to save D2R resources.

[0293] In some embodiments, the R2D signal / channel, such as Msg0 or broadcast R2D signal, carries a D2R resource configuration deactivation indication. When the network side wishes to change the D2R resource configuration autonomously sent by the A-IoT device, it can send this signaling to activate the D2R resource corresponding to the previously configured DO-A resource index.

[0294] Compared to Scheme 1, Scheme 2 directly configures periodic D2R transmission resources using broadcast R2D signaling, which helps reduce network-side overhead.

[0295] A-IoT device-side steps:

[0296] 1) The A-IoT device receives the R2D signal / channel sent by the Reader. This R2D signal / channel carries D2R resource configuration information. The A-IoT device determines the D2R transmission resource based on the D2R resource configuration information. Preferably, this is a D2R resource that allows the A-IoT device to transmit autonomously, or a D2R resource that does not require scheduling.

[0297] 2) A-IoT devices perform D2R data transmission on the corresponding autonomous sending / scheduled D2R resources.

[0298] An A-IoT device will only perform D2R transmission on the corresponding D2R resource after it has identified a DO-A based D2R resource and successfully connected to the network, meaning it must at least complete the Msg3 transmission. For example, in sensor service transmission, an A-IoT device does not expect to perform D2R transmission on the D2R resource configured by broadcast signaling before it has connected to the network.

[0299] The D2R signal / channel transmitted by the A-IoT device on the DO-A resource carries at least device ID information. The device ID is the same as in Embodiment 2, for example, the Device ID information fed back to the network by the A-IoT device through Msg3 during the 4-step or 3-step random access process, or the Device ID information fed back to the network by the A-IoT device through Msg1 during the 2-step or 1-step random access process.

[0300] Example 4: Multicast Method

[0301] The Reader sends R2D signals / channels via multicast, where the R2D signals / channels carry DO-A resource configuration information configured by the Reader for a group of A-IoT devices.

[0302] Specifically, the R2D signal / channel carries at least one DO-A resource configuration information, and each resource configuration information is associated with one or more Devices. The specific steps are as follows:

[0303] (Multicast) group R2D signals / channels carry at least one DO-A resource configuration information, and each resource configuration information is associated with one or more Devices.

[0304] Step 1: Reader performs the inventory process: For example, Reader performs a 4-step or 3-step random access process with A-IoT devices, Msg0-->Msg1-->Msg2-->Msg3, or a 2-step or 1-step random access process: Msg0-->Msg1, to complete the random access process.

[0305] Step 2: The Reader determines the Device ID or EPC information based on Msg3 (4-step or 3-step random access procedure) or Msg1 (2-step or 1-step random access procedure) and sends the first R2D signal / channel to the A-IoT device.

[0306] The first R2D signal / channel is a group common R2D signal, which contains at least the following information: N Device IDs, configuration information of 1 D2R transmission resource, and R2D control information.

[0307] Among them, R2D control information indicates the number / location information of Device IDs, and DO-A resource location indication information.

[0308] Alternatively, the signal may contain at least the following information: N Device IDs, configuration information for M D2R transmission resources, and R2D control information.

[0309] R2D control information indicates the number / location of Device IDs and the location and size of M configuration resources.

[0310] The A-IoT device determines the Reader as the DO-A resource indicated by the A-IoT device based on the R2D instruction and predetermined rules.

[0311] When M > 1, the protocol predefines the mapping relationship between N A-IoT devices and M resources. For example, the resource index corresponding to Device ID is mod(DeviceID-1,M)+1.

[0312] It should be noted that in Embodiments 3 and 4, DO-A / scheduled D2R resources are configured using broadcast / multicast R2D signals / channels. Specifically, each broadcast / multicast R2D signal / channel is configured with at least one DO-A based D2R resource. The resource type associated with each D2R resource is configured by the R2D signal / channel, and the resource type can be one of the following: periodic D2R resource, semi-persistent D2R resource, or on-demand D2R resource.

[0313] Each device ID is associated with a D2R resource type. This association can be configured via R2D signals / channels. Devices can autonomously determine the resource type associated with their D2R resources based on predefined rules. For example, a device with fire alarm detection capabilities might choose "on demand" as its associated resource type, while a temperature sensor device might choose "periodic D2R resource."

[0314] In some embodiments, the R2D signal / channel is configured as an on-demand D2R resource. The D2R resource transmission trigger condition is such that if the reporting condition is met, the device will perform on-demand reporting on the corresponding on-demand D2R resource.

[0315] It should be noted that the DO-A based D2R resources configured in the broadcast signaling correspond to different sensor types. Some require periodic reporting, while others require on-demand reporting, and the system needs to support flexible reporting by the devices.

[0316] In some embodiments, the method disclosed herein further includes:

[0317] A fifth signal or channel is sent to the first device, the fifth signal or channel being used to indicate deactivation of the first transmission resource and / or deactivation of the transmission type associated with the first transmission resource.

[0318] In some embodiments, the fifth signal or channel is an R2D signal / channel. For example, the R2D signal / channel deactivates periodic D2R resources, semi-persistent D2R resources, or on-demand D2R resources.

[0319] The information transmission method of this disclosure embodiment sends a first signal or channel to a first device. The first signal or channel carries resource configuration information, which is used to indicate a first transmission resource. The first signal or channel is a signal or channel from a network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform a first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link. In this way, the configuration of the first transmission resource used by the first device for autonomous transmission is realized using a first signal / channel, thereby realizing resource configuration for IoT outdoor services and facilitating the subsequent management of IoT outdoor services.

[0320] Figure 10 shows a flowchart of an information transmission method provided in an embodiment of this disclosure. This method is applied to a first device, that is, it is executed by the first device, such as an IoT device. Specifically, the method may include:

[0321] Step 1001: Receive a first signal or channel sent by the first network unit, wherein the first signal or channel carries resource configuration information and the first signal or channel is a signal or channel from the network unit to the first device.

[0322] Step 1002: According to the resource configuration information, perform a first transmission on the first transmission resource, wherein the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0323] It should be noted that this embodiment is the opposite side to the first network unit side described above, namely, the method embodiment on the first device side. For a detailed understanding and explanation of the relevant terms or steps, please refer to the description of the method on the first network unit side; it will not be repeated here.

[0324] In some embodiments, the location of the resource configuration information in the first signal or channel is predefined by the protocol or indicated by control indication information; or the association between the resource configuration information and the fields contained in the first signal or channel is predefined by the protocol or indicated by control indication information, which is carried in the first signal or channel.

[0325] In some embodiments, the resource configuration information includes one or more of the following:

[0326] Frame type indication information;

[0327] First equipment identification information;

[0328] The waveform information of the second signal or channel transmitted corresponding to the first transmission resource, wherein the second signal or channel is the signal or channel from the first device to the network unit;

[0329] The modulation information of the second signal or channel transmission corresponding to the first transmission resource;

[0330] The frequency domain resource information corresponding to the first transmission;

[0331] The time-domain resource information corresponding to the first transmission;

[0332] The effective conditions corresponding to the first transmission resource;

[0333] The conditions under which the first device transmits data on the first transmission resource;

[0334] The threshold value for the first device to transmit data on the first transmission resource;

[0335] First indication information, the first indication information is used to indicate the resource type corresponding to the first transmission resource;

[0336] The second indication information is used to indicate the transmission type corresponding to the first transmission resource;

[0337] The third indication information is used to indicate the association between the resource type corresponding to the first transmission resource and the transmission type corresponding to the first transmission resource.

[0338] For example, when the resource configuration information includes waveform information of the second signal or channel transmission corresponding to the first transmission resource, step 1002 specifically includes: transmitting the second signal or channel corresponding to the waveform on the first transmission resource according to the resource configuration information.

[0339] When the resource configuration information includes modulation information for the transmission of a second signal or channel corresponding to the first transmission resource, step 1002 specifically includes: transmitting a second signal or channel with a corresponding modulation mode on the first transmission resource according to the resource configuration information.

[0340] When the resource configuration information includes first indication information for indicating the resource type corresponding to the first transmission resource, step 1002 specifically includes: transmitting a second signal or channel on a periodic resource / semi-persistent resource / on-demand resource according to the resource configuration information.

[0341] When the resource configuration information includes second indication information for indicating the transmission type corresponding to the first transmission resource, step 1002 specifically includes: performing periodic / semi-continuous / on-demand / aperiodic second signal or channel transmission on the first transmission resource according to the resource configuration information.

[0342] When the resource configuration information includes third indication information indicating the association between the resource type corresponding to the first transmission resource and the transmission type corresponding to the first transmission resource, step 1002 specifically includes: performing periodic / semi-persistent / on-demand / aperiodic second signal or channel transmission on periodic resources / semi-persistent resources / on-demand resources according to the resource configuration information. Wherein, there is a preset association between the resource type corresponding to the first transmission resource and the transmission type corresponding to the first transmission resource.

[0343] It should be understood that the above is only an example, and the resource configuration information may include one or more of the above. When multiple resources are combined, the first transmission is performed on the first transmission resource according to the instructions of the multiple combinations, which will not be elaborated here.

[0344] In some embodiments, the first device identification information is configured by the first network unit, or the first device obtains the first device identification information by reporting after the first device successfully accesses the network, or the first device identification information is obtained by randomly accessing relevant information.

[0345] In some embodiments, if the carrier corresponding to the first device is provided externally, the frequency domain resource information corresponding to the first transmission includes one or more of the following: the chip length corresponding to the first transmission; the chip period corresponding to the first transmission; the frequency shift factor M value; and fourth indication information, which is used to indicate that the waveform of the second signal or channel is single-sideband or double-sideband.

[0346] In some embodiments, if the carrier corresponding to the first device is generated internally by the device, the frequency domain resource information corresponding to the first transmission includes one or more of the following: the center frequency point corresponding to the first transmission; the bandwidth corresponding to the first transmission; the start frequency point of the first transmission; and the end frequency point of the first transmission.

[0347] In some embodiments, the time-domain resource information corresponding to the first transmission includes one or more of the following:

[0348] Length information of time-domain resources;

[0349] Transmission cycle of time-domain resources;

[0350] The number of time-domain resources that the first device is allowed to transmit;

[0351] Starting point information for time-domain resources.

[0352] In some embodiments, step 1002 above, which involves performing a first transmission on the first transmission resource according to the resource configuration information, includes:

[0353] Based on the resource configuration information, the first transmission resource is determined;

[0354] Based on the activation conditions corresponding to the first transmission resource, the valid transmission resources in the first transmission resource are determined; wherein, the activation conditions corresponding to the first transmission resource include one of the following conditions:

[0355] The delay based on the end point of the first signal or channel is a first preset time T1_delay, which takes effect after a delay of a first preset time T1_delay. The first preset time T1_delay is greater than or equal to the minimum time T required from receiving the first signal or channel to sending the second signal or channel. R2D _min;

[0356] The response or acknowledgment signal corresponding to the first signal or channel takes effect after a second preset time delay T2_delay, wherein the second preset time T2_delay is greater than or equal to the minimum time interval T between two consecutive first transmissions of the first device. D2R_D2R_min .

[0357] It should be noted that the effective conditions corresponding to the first transmission resource are determined by the first device based on the time-domain resource information configured by the first signal or channel, or the effective conditions corresponding to the first transmission resource are configured by the first signal or channel, for example, included in the resource configuration information carried by the first signal or channel.

[0358] The second signal or channel is transmitted on the available transmission resources.

[0359] Here, the specific implementation steps for determining the valid transmission resources in the first transmission resources according to the activation conditions corresponding to the first transmission resources are as follows:

[0360] The first device determines the initial D2R reporting or transmission resources.

[0361] (1) The D2R transmission resources configured for the R2D signal / channel take effect after the ending point delay T_delay of the R2D signal / channel.

[0362] The starting valid D2R resource is the first complete D2R resource after a delay of T_delay following the ending point of the R2D signal / channel; equivalently, the A-IoT device reports / transmits data on the D2R resource configured with resource configuration information after a delay of T_delay following the receipt of the R2D signal / channel.

[0363] T_delay is greater than or equal to (i.e., at least not less than) T R2D _min, the T R2D `_min` represents the minimum time required for an A-IoT device to receive an R2D signal and transmit a D2R signal. This time is sufficient for the A-IoT device to demodulate the R2D frame, perform transmit / receive conversion, and also for energy storage (energy harvesting). As shown in Figure 6, the R2D signal / channel is a D2R resource configuration frame, configuring a D2R resource with a period of T. In the figure, the first D2R resource overlaps with the T_delay time interval after the ending point of the R2D signal / channel; therefore, the first D2R resource is invalid. D2R resources located beyond the ending point of the R2D signal / channel by more than T_delay are valid. The first D2R resource satisfying these conditions is the initially valid D2R resource.

[0364] (2) The D2R transmission resources configured by the R2D signal / channel take effect after the ending point delay T_delay of the D2R response or acknowledgment signal corresponding to the R2D signal / channel; the starting valid D2R resource is the first (complete) D2R resource after the ending point T_delay of the D2R response / acknowledgment signal; the A-IoT device reports / transmits the D2R resources configured by the resource configuration information after the T_delay of sending the D2R response or acknowledgment signal.

[0365] T_delay is greater than or equal to (i.e., at least not less than) TD2R_D2R_min :T D2R_D2R_min T is the minimum time interval between two distinct and consecutive D2R transmissions from an A-IoT device. D2R_D2R_min It can be used for Reader demodulation, and preferably for passive device energy harvesting. As shown in Figure 7, the R2D signal / channel is a D2R resource configuration frame, configuring a D2R resource with a period of T. After receiving the R2D signal / channel, the A-IoT device first sends back a D2R response / acknowledgment frame, such as an ACK / NACK message, to inform the Reader that the resource configuration frame has been received. In Figure 7, if the first D2R resource overlaps with the T_delay time interval after the ending point of the D2R acknowledgment frame, then the first D2R resource is an invalid D2R resource. D2R resources that are more than T_delay after the ending point of the D2R acknowledgment frame are valid D2R resources. The first D2R resource that meets the above conditions is the initially valid D2R resource.

[0366] It should be noted that A-IoT devices only transmit D2R signals / channels on available D2R resources.

[0367] In some embodiments, the effective transmission resources satisfy one of the following conditions:

[0368] The effective transmission resources are effective uplink time slots;

[0369] The effective transmission resources are within the device availability time indicated by the first network unit;

[0370] The effective transmission resources do not overlap with the transmission time of message 1 or message 3 during the random access process of the first device.

[0371] That is, under the premise of satisfying (1) or (2) above, the D2R resource must also be a valid uplink UL time slot (if A-IoT supports Time Division Duplexing (TDD) system), or the D2R resource is within the available time of the device indicated by the Reader side (when the device has completed charging), or the D2R resource does not overlap with the transmission time of Msg1 and Msg3.

[0372] Otherwise, the first device will not perform D2R signal / channel transmission on the aforementioned D2R resources.

[0373] In some embodiments, the method disclosed herein further includes:

[0374] The system receives a third signal or channel sent by the first network unit. The third signal or channel carries a fifth indication information requesting the reporting of device capabilities and the transmission resources of a fourth signal or channel. The third signal or channel is a signal or channel from the first network unit to the first device. The fifth indication information includes device type and / or device capabilities.

[0375] The fourth signal or channel is sent to the first network unit through the transmission resource. The fourth signal or channel is a signal or channel from the first device to the first network unit and is used for device capability reporting.

[0376] In some embodiments, the fourth signal or channel includes one or more of the following:

[0377] A frame identifier used to characterize the device capabilities of the first device;

[0378] Equipment type;

[0379] The device capabilities supported by the first device;

[0380] Resource request information;

[0381] Preference information for resource configuration parameters;

[0382] The resource-associated transmission parameter preference information, wherein the resource request information, the resource configuration parameter preference information, and the resource-associated transmission parameter preference information are all used to assist the first network unit in configuring the resources for the first transmission.

[0383] In some embodiments, the third signal or channel includes one of the following:

[0384] The response message of message 1 during the first device's 4-step or 3-step random access process; or,

[0385] The paging message during the first device's 2-step or 1-step random access process.

[0386] In some embodiments, the fourth signal or channel is a response message to message 2 during the first device's 4-step or 3-step random access process, or a response message to a paging message during the first device's 2-step or 1-step random access process.

[0387] In some embodiments, the third signal or channel is a signal or channel sent by the first network unit after the first device completes random access and the first network unit obtains the first device identification information.

[0388] The third signal or channel carries at least one first device identification information, each first device corresponds to a fifth indication information, and each first device corresponds to a fourth signal or channel transmission resource.

[0389] In some embodiments, the first transmission is one of the following transmissions:

[0390] Autonomous transmission of DO-DTT signaling without dynamic device initiation-device termination triggering;

[0391] Autonomous transmission without dynamic DO-DTT signaling;

[0392] Autonomous transmission of signaling from the first network unit to the first device without triggering it;

[0393] Autonomous transmission of signaling from the first network unit to the first device without triggering the signal.

[0394] Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamic intervention;

[0395] Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamics.

[0396] In some embodiments, receiving the first signal or channel transmitted by the first network unit in step 1001 includes:

[0397] The system receives a first signal or channel sent by a first network unit via broadcast or multicast. The resource configuration information includes at least one resource configuration information, and each resource configuration information is associated with one or more first devices. Alternatively, the resource configuration information includes a sixth indication information, which is used to indicate a second transmission resource, the second transmission resource being the transmission resource corresponding to the resource configuration frame, and the resource configuration frame being used to indicate the first transmission resource.

[0398] In some embodiments, the transmission resource corresponding to the resource configuration frame is a periodic transmission resource; or, the first signal or channel corresponding to the resource configuration frame carries identification information of the first transmission resource.

[0399] In some embodiments, the method disclosed herein further includes:

[0400] Receive a fifth signal or channel sent by the first network unit, the fifth signal or channel being used to indicate deactivation of the first transmission resource and / or deactivation of the transmission type associated with the first transmission resource;

[0401] According to the indication of the fifth signal or channel, activate the first transmission resource and / or activate the transmission of the transmission type associated with the first transmission resource.

[0402] The information transmission method of this disclosure embodiment receives a first signal or channel sent by a first network unit. The first signal or channel carries resource configuration information and is a signal or channel from the network unit to a first device. According to the resource configuration information, a first transmission is performed on a first transmission resource. The link corresponding to the first transmission is a link from the first device to the network unit, an uplink, or a reverse link. In this way, the configuration of the first transmission resource used by the first device for autonomous transmission is realized using a first signal / channel, thereby realizing resource configuration for IoT outdoor services and facilitating subsequent management of IoT outdoor services.

[0403] As shown in Figure 11, this embodiment of the present disclosure also provides a first network unit, including: a transceiver 1100, a memory 1120, a processor 1110, and a computer program stored in the memory 1120 and executable on the processor 1110; the transceiver 1100 is used to receive and transmit data under the control of the processor 1110; the processor 1110 is used to read the program in the memory 1120 and execute the following processes:

[0404] The transceiver 1100 sends a first signal or channel to the first device. The first signal or channel carries resource configuration information, which is used to indicate the first transmission resource. The first signal or channel is a signal or channel from the network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform the first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0405] In Figure 11, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1110 and memory represented by memory 1120. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 1100 may be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, and other transmission media.

[0406] When the first network unit is a terminal, the user interface 1130 can also be an interface that can connect to external or internal devices for different user equipment. The connected devices include, but are not limited to, keypads, displays, speakers, microphones, joysticks, etc.

[0407] The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 can store the data used by the processor 1110 when performing operations.

[0408] In some embodiments, the processor 1110 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0409] The processor 1110 executes any of the methods provided in the embodiments of this disclosure according to the obtained executable instructions by calling program instructions stored in the memory. The processor 1110 and the memory 1120 may also be physically separated.

[0410] In some embodiments, the location of the resource configuration information in the first signal or channel is predefined by the protocol or indicated by control indication information; or the association between the resource configuration information and the fields contained in the first signal or channel is predefined by the protocol or indicated by control indication information, which is carried in the first signal or channel.

[0411] In some embodiments, the resource configuration information includes one or more of the following:

[0412] Frame type indication information;

[0413] First equipment identification information;

[0414] The waveform information of the second signal or channel transmitted corresponding to the first transmission resource, wherein the second signal or channel is the signal or channel from the first device to the network unit;

[0415] The modulation information of the second signal or channel transmission corresponding to the first transmission resource;

[0416] The frequency domain resource information corresponding to the first transmission;

[0417] The time-domain resource information corresponding to the first transmission;

[0418] The effective conditions corresponding to the first transmission resource;

[0419] The conditions under which the first device transmits data on the first transmission resource;

[0420] The threshold value for the first device to transmit data on the first transmission resource;

[0421] First indication information, the first indication information is used to indicate the resource type corresponding to the first transmission resource;

[0422] The second indication information is used to indicate the transmission type corresponding to the first transmission resource;

[0423] The third indication information is used to indicate the association between the resource type corresponding to the first transmission resource and the transmission type corresponding to the first transmission resource.

[0424] In some embodiments, the first device identification information is configured by the first network unit, or the first device obtains the first device identification information by reporting after the first device successfully accesses the network, or the first device identification information is obtained by randomly accessing relevant information.

[0425] In some embodiments, if the carrier corresponding to the first device is provided externally, the frequency domain resource information corresponding to the first transmission includes one or more of the following:

[0426] The chip length corresponding to the first transmission;

[0427] The chip period corresponding to the first transmission;

[0428] Frequency shift factor M value;

[0429] The fourth indication information is used to indicate whether the waveform of the second signal or channel is single-sideband or double-sideband.

[0430] In some embodiments, if the carrier corresponding to the first device is generated internally by the device, then the frequency domain resource information corresponding to the first transmission includes one or more of the following:

[0431] The center frequency point corresponding to the first transmission;

[0432] The bandwidth corresponding to the first transmission;

[0433] The starting frequency of the first transmission;

[0434] The termination frequency of the first transmission.

[0435] In some embodiments, the time-domain resource information corresponding to the first transmission includes one or more of the following:

[0436] Length information of time-domain resources;

[0437] Transmission cycle of time-domain resources;

[0438] The number of time-domain resources that the first device is allowed to transmit;

[0439] Starting point information for time-domain resources.

[0440] In some embodiments, the processor 1110 is further configured to:

[0441] Obtain the device capability information of the first device.

[0442] In some embodiments, the transceiver 1100 is further configured to:

[0443] Send a third signal or channel to the first device, the third signal or channel carrying fifth indication information requesting the reporting of device capabilities and the transmission resources of the fourth signal or channel, the third signal or channel being a signal or channel from the first network unit to the first device, the fifth indication information including device type and / or device capabilities;

[0444] The system receives a fourth signal or channel transmitted by the first device through the transmission resource. The fourth signal or channel is a signal or channel from the first device to the first network unit and is used for device capability reporting.

[0445] In some embodiments, the fourth signal or channel includes one or more of the following:

[0446] A frame identifier used to characterize the device capabilities of the first device;

[0447] Equipment type;

[0448] The device capabilities supported by the first device;

[0449] Resource request information;

[0450] Preference information for resource configuration parameters;

[0451] The resource-associated transmission parameter preference information, wherein the resource request information, the resource configuration parameter preference information, and the resource-associated transmission parameter preference information are all used to assist the first network unit in configuring the resources for the first transmission.

[0452] In some embodiments, the third signal or channel includes one of the following:

[0453] The response message of message 1 during the first device's 4-step or 3-step random access process; or,

[0454] The paging message during the first device's 2-step or 1-step random access process.

[0455] In some embodiments, the fourth signal or channel is a response message to message 2 during the first device's 4-step or 3-step random access process, or a response message to a paging message during the first device's 2-step or 1-step random access process.

[0456] In some embodiments, the third signal or channel is a signal or channel sent by the first network unit after the first device completes random access and the first network unit obtains the first device identification information.

[0457] The third signal or channel carries at least one first device identification information, each first device corresponds to a fifth indication information, and each first device corresponds to a fourth signal or channel transmission resource.

[0458] In some embodiments, the first transmission is one of the following transmissions:

[0459] Autonomous transmission of DO-DTT signaling without dynamic device initiation-device termination triggering;

[0460] Autonomous transmission without dynamic DO-DTT signaling;

[0461] Autonomous transmission of signaling from the first network unit to the first device without triggering it;

[0462] Autonomous transmission of signaling from the first network unit to the first device without triggering the signal.

[0463] Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamic intervention;

[0464] Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamics.

[0465] In some embodiments, the transceiver 1100 is further configured to:

[0466] A first signal or channel is sent to at least one first device via broadcast or multicast, wherein the resource configuration information includes at least one resource configuration information, each resource configuration information being associated with one or more first devices; or, the resource configuration information includes sixth indication information, the sixth indication information being used to indicate a second transmission resource, the second transmission resource being the transmission resource corresponding to the resource configuration frame, the resource configuration frame being used to indicate the first transmission resource.

[0467] In some embodiments, the transmission resource corresponding to the resource configuration frame is a periodic transmission resource; or, the first signal or channel corresponding to the resource configuration frame carries identification information of the first transmission resource.

[0468] In some embodiments, the transceiver 1100 is further configured to:

[0469] A fifth signal or channel is sent to the first device, the fifth signal or channel being used to indicate deactivation of the first transmission resource and / or deactivation of the transmission type associated with the first transmission resource.

[0470] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0471] As shown in Figure 12, this embodiment of the present disclosure also provides an information transmission device, including:

[0472] The first transmitting unit 1201 is used to transmit a first signal or channel to a first device. The first signal or channel carries resource configuration information, which is used to indicate a first transmission resource. The first signal or channel is a signal or channel from a network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform the first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0473] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0474] As shown in Figure 13, this embodiment of the present disclosure also provides a first device, including: a transceiver 1300, a memory 1320, a processor 1310, and a computer program stored in the memory 1320 and executable on the processor 1310; the transceiver 1300 is used to send and receive data under the control of the processor 1310, and to perform the following operations:

[0475] The transceiver 1300 receives a first signal or channel sent by the first network unit, the first signal or channel carrying resource configuration information, and the first signal or channel being a signal or channel from the network unit to the first device.

[0476] According to the resource configuration information, a first transmission is performed on the first transmission resource, and the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0477] In Figure 13, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 1310 and memory represented by memory 1320. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 1300 may be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, the user interface 1330 may also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0478] The processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 can store the data used by the processor 1310 when performing operations.

[0479] The processor 1310 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0480] The processor 1310 executes any of the methods provided in the embodiments of this disclosure according to the obtained executable instructions by calling program instructions stored in the memory. The processor 1310 and the memory 1320 may also be physically separated.

[0481] In some embodiments, the location of the resource configuration information in the first signal or channel is predefined by the protocol or indicated by control indication information; or the association between the resource configuration information and the fields contained in the first signal or channel is predefined by the protocol or indicated by control indication information, which is carried in the first signal or channel.

[0482] In some embodiments, the resource configuration information includes one or more of the following:

[0483] Frame type indication information;

[0484] First equipment identification information;

[0485] The waveform information of the second signal or channel transmitted corresponding to the first transmission resource, wherein the second signal or channel is the signal or channel from the first device to the network unit;

[0486] The modulation information of the second signal or channel transmission corresponding to the first transmission resource;

[0487] The frequency domain resource information corresponding to the first transmission;

[0488] The time-domain resource information corresponding to the first transmission;

[0489] The effective conditions corresponding to the first transmission resource;

[0490] The conditions under which the first device transmits data on the first transmission resource;

[0491] The threshold value for the first device to transmit data on the first transmission resource;

[0492] First indication information, the first indication information is used to indicate the resource type corresponding to the first transmission resource;

[0493] The second indication information is used to indicate the transmission type corresponding to the first transmission resource;

[0494] The third indication information is used to indicate the association between the resource type corresponding to the first transmission resource and the transmission type corresponding to the first transmission resource.

[0495] In some embodiments, the first device identification information is configured by the first network unit, or the first device obtains the first device identification information by reporting after the first device successfully accesses the network, or the first device identification information is obtained by randomly accessing relevant information.

[0496] In some embodiments, if the carrier corresponding to the first device is provided externally, the frequency domain resource information corresponding to the first transmission includes one or more of the following:

[0497] The chip length corresponding to the first transmission;

[0498] The chip period corresponding to the first transmission;

[0499] Frequency shift factor M value;

[0500] The fourth indication information is used to indicate whether the waveform of the second signal or channel is single-sideband or double-sideband.

[0501] In some embodiments, if the carrier corresponding to the first device is generated internally by the device, then the frequency domain resource information corresponding to the first transmission includes one or more of the following:

[0502] The center frequency point corresponding to the first transmission;

[0503] The bandwidth corresponding to the first transmission;

[0504] The starting frequency of the first transmission;

[0505] The termination frequency of the first transmission.

[0506] In some embodiments, the time-domain resource information corresponding to the first transmission includes one or more of the following:

[0507] Length information of time-domain resources;

[0508] Transmission cycle of time-domain resources;

[0509] The number of time-domain resources that the first device is allowed to transmit;

[0510] Starting point information for time-domain resources.

[0511] In some embodiments, the processor 1310 is further configured to:

[0512] Based on the resource configuration information, the first transmission resource is determined;

[0513] Based on the effective conditions corresponding to the first transmission resource, determine the valid transmission resource among the first transmission resources;

[0514] Transmission of a second signal or channel is performed on the available transmission resources;

[0515] The effective conditions corresponding to the first transmission resource include one of the following conditions:

[0516] It takes effect after a first preset time delay based on the end point of the first signal or channel, wherein the first preset time is greater than or equal to the minimum time required from receiving the first signal or channel to sending the second signal or channel;

[0517] The response or acknowledgment signal corresponding to the first signal or channel takes effect after a second preset time delay from the end point, wherein the second preset time is greater than or equal to the minimum time interval between two consecutive first transmissions of the first device.

[0518] In some embodiments, the effective transmission resources satisfy one of the following conditions:

[0519] The effective transmission resources are effective uplink time slots;

[0520] The effective transmission resources are within the device availability time indicated by the first network unit;

[0521] The effective transmission resources do not overlap with the transmission time of message 1 or message 3 during the random access process of the first device.

[0522] In some embodiments, the transceiver 1300 is further configured to:

[0523] The system receives a third signal or channel sent by the first network unit. The third signal or channel carries a fifth indication information requesting the reporting of device capabilities and the transmission resources of a fourth signal or channel. The third signal or channel is a signal or channel from the first network unit to the first device. The fifth indication information includes device type and / or device capabilities.

[0524] The fourth signal or channel is sent to the first network unit through the transmission resource. The fourth signal or channel is a signal or channel from the first device to the first network unit and is used for device capability reporting.

[0525] In some embodiments, the fourth signal or channel includes one or more of the following:

[0526] A frame identifier used to characterize the device capabilities of the first device;

[0527] Equipment type;

[0528] The device capabilities supported by the first device;

[0529] Resource request information;

[0530] Preference information for resource configuration parameters;

[0531] The resource-associated transmission parameter preference information, wherein the resource request information, the resource configuration parameter preference information, and the resource-associated transmission parameter preference information are all used to assist the first network unit in configuring the resources for the first transmission.

[0532] In some embodiments, the fourth signal or channel includes one or more of the following:

[0533] The third signal or channel includes one of the following:

[0534] The response message of message 1 during the first device's 4-step or 3-step random access process; or,

[0535] The paging message during the first device's 2-step or 1-step random access process.

[0536] In some embodiments, the fourth signal or channel is a response message to message 2 during the first device's 4-step or 3-step random access process, or a response message to a paging message during the first device's 2-step or 1-step random access process.

[0537] In some embodiments, the third signal or channel is a signal or channel sent by the first network unit after the first device completes random access and the first network unit obtains the first device identification information.

[0538] The third signal or channel carries at least one first device identification information, each first device corresponds to a fifth indication information, and each first device corresponds to a fourth signal or channel transmission resource.

[0539] In some embodiments, the first transmission is one of the following transmissions:

[0540] Autonomous transmission of DO-DTT signaling without dynamic device initiation-device termination triggering;

[0541] Autonomous transmission without dynamic DO-DTT signaling;

[0542] Autonomous transmission of signaling from the first network unit to the first device without triggering it;

[0543] Autonomous transmission of signaling from the first network unit to the first device without triggering the signal.

[0544] Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamic intervention;

[0545] Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamics.

[0546] In some embodiments, the transceiver 1300 is further configured to:

[0547] The system receives a first signal or channel sent by a first network unit via broadcast or multicast. The resource configuration information includes at least one resource configuration information, and each resource configuration information is associated with one or more first devices. Alternatively, the resource configuration information includes a sixth indication information, which is used to indicate a second transmission resource, the second transmission resource being the transmission resource corresponding to the resource configuration frame, and the resource configuration frame being used to indicate the first transmission resource.

[0548] In some embodiments, the transmission resource corresponding to the resource configuration frame is a periodic transmission resource; or, the first signal or channel corresponding to the resource configuration frame carries identification information of the first transmission resource.

[0549] In some embodiments, the processor 1310 is further configured to:

[0550] The transceiver 1300 receives a fifth signal or channel sent by the first network unit, the fifth signal or channel being used to indicate deactivation of the first transmission resource and / or deactivation of the transmission type associated with the first transmission resource.

[0551] According to the indication of the fifth signal or channel, activate the first transmission resource and / or activate the transmission of the transmission type associated with the first transmission resource.

[0552] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0553] As shown in Figure 14, this disclosure also provides an information transmission device, including:

[0554] The first receiving unit 1401 is configured to receive a first signal or channel sent by the first network unit, wherein the first signal or channel carries resource configuration information and the first signal or channel is a signal or channel from the network unit to the first device.

[0555] The first processing unit 1402 is configured to perform a first transmission on a first transmission resource according to the resource configuration information, wherein the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

[0556] It should be noted that the division of units in the embodiments of this disclosure is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0557] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0558] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0559] In some embodiments of this disclosure, a non-transitory readable storage medium is also provided, which stores a program for executing the information transmission method described above.

[0560] The non-transiently readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., compact disc (CD), digital video disc (DVD), Blu-ray disc (BD), high-definition versatile disc (HVD)), and semiconductor memory (e.g., ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid state hard drives (SSD), etc.).

[0561] When the program is executed by the processor, it can implement all the above-described methods applied to the first network unit side as shown in Figure 5 or the first device side embodiment as shown in Figure 10. To avoid repetition, these will not be described again here.

[0562] This disclosure also provides a computer program product, including computer instructions. When the computer instructions are executed by a processor, they implement the various processes of the method embodiments shown in FIG5 or FIG10 above and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0563] The technical solutions provided in this disclosure can be applied to a variety of systems. For example, applicable systems may include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), 5G New Radio (NR) and its evolutionary communication systems, and 6G (sixth generation mobile communication technology) systems. All of these systems include terminal equipment and network equipment. The system may also include a core network component, such as the Evolved Packet System (EPS) or the 5G system (5GS).

[0564] The terminal devices involved in the embodiments of this disclosure can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in 5G or 6G systems, the terminal device may be called User Equipment (UE). Wireless terminal devices can be USB storage devices, other personal computer memory devices, and dongles. They can also communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples of such devices include Personal Communication Service (PCS) telephones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablets, and Machine-type Communication (MTC) terminal devices. Wireless terminal devices can also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile devices, remote stations, access points, remote terminals, access terminals, user terminals, user agents, user devices, and wireless access devices and routers / modems that meet the limitations of this definition, but are not limited to these in the embodiments of this disclosure.

[0565] The network device involved in this disclosure can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, the base station may also be called an access point, or a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in this disclosure can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA) system, a NodeB in a wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, network testing equipment, etc., and is not limited in this disclosure. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0566] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). Depending on the shape and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive-scale MIMO. It can also be diversity transmission, pre-coded transmission, or beamforming transmission, etc.

[0567] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, systems, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0568] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more flowchart illustrations and / or one or more block diagrams.

[0569] These processor-executable instructions may also be stored in a processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0570] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0571] Furthermore, it should be noted that in the apparatus and method of this disclosure, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of this disclosure. Moreover, the steps performing the above series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of this disclosure can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof, which can be achieved by those skilled in the art using their basic programming skills after reading the description of this disclosure.

[0572] It should be noted that the above division of modules is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software via processing element calls; they can be fully implemented in hardware; or some modules can be implemented by processing element calls to software, while others are implemented in hardware. For example, a module can be a separate processing element, or it can be integrated into a chip in the aforementioned device. Alternatively, it can be stored as program code in the memory of the aforementioned device, and its function can be called and executed by a processing element of the device. The implementation of other modules is similar. Moreover, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element mentioned here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0573] For example, each module, unit, subunit, or submodule can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together as a system-on-a-chip (SOC).

[0574] The terms “first,” “second,” etc., used in this disclosure and in the claims are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this disclosure described herein may be implemented, for example, in sequences other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0575] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. An information transmission method applied to a first network unit, the method comprising: A first signal or channel is sent to a first device. The first signal or channel carries resource configuration information. The resource configuration information is used to indicate a first transmission resource. The first signal or channel is a signal or channel from a network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform the first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

2. The method according to claim 1, wherein, The location of the resource configuration information in the first signal or channel is predefined by the protocol or indicated by control indication information; or the association between the resource configuration information and the fields contained in the first signal or channel is predefined by the protocol or indicated by control indication information, which is carried in the first signal or channel.

3. The method according to claim 1, wherein, The resource configuration information includes one or more of the following: Frame type indication information; First equipment identification information; The waveform information of the second signal or channel transmitted corresponding to the first transmission resource, wherein the second signal or channel is the signal or channel from the first device to the network unit; The modulation information of the second signal or channel transmission corresponding to the first transmission resource; The frequency domain resource information corresponding to the first transmission; The time-domain resource information corresponding to the first transmission; The effective conditions corresponding to the first transmission resource; The conditions under which the first device transmits data on the first transmission resource; The threshold value for the first device to transmit data on the first transmission resource; First indication information, the first indication information is used to indicate the resource type corresponding to the first transmission resource; The second indication information is used to indicate the transmission type corresponding to the first transmission resource; The third indication information is used to indicate the association between the resource type corresponding to the first transmission resource and the transmission type corresponding to the first transmission resource.

4. The method according to claim 3, wherein, The first device identification information is configured by the first network unit, or the first device obtains the first device identification information by reporting after the first device successfully accesses the network, or the first device identification information is obtained by randomly accessing relevant information.

5. The method according to claim 1, wherein, Also includes: Obtain the device capability information of the first device.

6. The method according to claim 5, wherein, The step of obtaining the device capability information of the first device includes: Send a third signal or channel to the first device, the third signal or channel carrying fifth indication information requesting the reporting of device capabilities and the transmission resources of the fourth signal or channel, the third signal or channel being a signal or channel from the first network unit to the first device, the fifth indication information including device type and / or device capabilities; The system receives a fourth signal or channel transmitted by the first device through the transmission resource. The fourth signal or channel is a signal or channel from the first device to the first network unit and is used for device capability reporting.

7. The method according to claim 6, wherein, The fourth signal or channel includes one or more of the following: A frame identifier used to characterize the device capabilities of the first device; Equipment type; The device capabilities supported by the first device; Resource request information; Preference information for resource configuration parameters; The resource-associated transmission parameter preference information, wherein the resource request information, the resource configuration parameter preference information, and the resource-associated transmission parameter preference information are all used to assist the first network unit in configuring the resources for the first transmission.

8. The method according to claim 6, wherein, The third signal or channel includes one of the following: The response message of message 1 during the first device's 4-step or 3-step random access process; or, The paging message during the first device's 2-step or 1-step random access process.

9. The method according to claim 1, wherein, The first transmission is one of the following: Autonomous transmission of DO-DTT signaling without dynamic device initiation-device termination triggering; Autonomous transmission without dynamic DO-DTT signaling; Autonomous transmission of signaling from the first network unit to the first device without triggering it; Autonomous transmission of signaling from the first network unit to the first device without triggering the signal. Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamic intervention; Autonomous transmission of scheduling signaling from the first network unit to the first device without dynamics.

10. The method according to claim 1, wherein, Sending the first signal or channel to the first device includes: A first signal or channel is sent to at least one first device via broadcast or multicast, wherein the resource configuration information includes at least one resource configuration information, each resource configuration information being associated with one or more first devices; or, the resource configuration information includes sixth indication information, the sixth indication information being used to indicate a second transmission resource, the second transmission resource being the transmission resource corresponding to the resource configuration frame, the resource configuration frame being used to indicate the first transmission resource.

11. The method according to claim 3, wherein, The method further includes: A fifth signal or channel is sent to the first device, the fifth signal or channel being used to indicate deactivation of the first transmission resource and / or deactivation of the transmission type associated with the first transmission resource.

12. An information transmission method applied to a first device, the method comprising: Receive a first signal or channel sent by a first network unit, wherein the first signal or channel carries resource configuration information and the first signal or channel is a signal or channel from the network unit to the first device; According to the resource configuration information, a first transmission is performed on the first transmission resource, and the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

13. The method according to claim 12, wherein, The step of performing a first transmission on a first transmission resource according to the resource configuration information includes: Based on the resource configuration information, the first transmission resource is determined; Based on the effective conditions corresponding to the first transmission resource, determine the valid transmission resource among the first transmission resources; Transmission of a second signal or channel is performed on the available transmission resources; The effective conditions corresponding to the first transmission resource include one of the following conditions: It takes effect after a first preset time delay based on the end point of the first signal or channel, wherein the first preset time is greater than or equal to the minimum time required from receiving the first signal or channel to sending the second signal or channel; The response or acknowledgment signal corresponding to the first signal or channel takes effect after a second preset time delay from the end point, wherein the second preset time is greater than or equal to the minimum time interval between two consecutive first transmissions of the first device.

14. The method according to claim 12, wherein, Also includes: The system receives a third signal or channel sent by the first network unit. The third signal or channel carries a fifth indication information requesting the reporting of device capabilities and the transmission resources of a fourth signal or channel. The third signal or channel is a signal or channel from the first network unit to the first device. The fifth indication information includes device type and / or device capabilities. The fourth signal or channel is sent to the first network unit through the transmission resource. The fourth signal or channel is a signal or channel from the first device to the first network unit and is used for device capability reporting.

15. The method according to claim 12, wherein, The receiving of the first signal or channel sent by the first network unit includes: The system receives a first signal or channel sent by a first network unit via broadcast or multicast. The resource configuration information includes at least one resource configuration information, and each resource configuration information is associated with one or more first devices. Alternatively, the resource configuration information includes a sixth indication information, which is used to indicate a second transmission resource, the second transmission resource being the transmission resource corresponding to the resource configuration frame, and the resource configuration frame being used to indicate the first transmission resource.

16. The method according to claim 12, wherein, The method further includes: Receive a fifth signal or channel sent by the first network unit, the fifth signal or channel being used to indicate deactivation of the first transmission resource and / or deactivation of the transmission type associated with the first transmission resource; According to the indication of the fifth signal or channel, activate the first transmission resource and / or activate the transmission of the transmission type associated with the first transmission resource.

17. A first network unit, comprising: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and perform the following processes: A first signal or channel is sent to a first device via a transceiver. The first signal or channel carries resource configuration information, which is used to indicate a first transmission resource. The first signal or channel is a signal or channel from a network unit to the first device. The first transmission resource is the transmission resource used by the first device to perform the first transmission. The link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

18. A first device, comprising: A transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor is configured to read the program from the memory and perform the following processes: The transceiver receives a first signal or channel sent by the first network unit, the first signal or channel carrying resource configuration information, and the first signal or channel being a signal or channel from the network unit to the first device. According to the resource configuration information, a first transmission is performed on the first transmission resource, and the link corresponding to the first transmission is a link from the first device to the network unit, or an uplink or a reverse link.

19. A non-transiently readable storage medium storing a program for performing the steps of the information transmission method according to any one of claims 1 to 11, or performing the steps of the information transmission method according to any one of claims 12 to 16.

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