Wireless communication method, communication device, apparatus, and storage medium

Abstract

Provided are a wireless communication method, a communication device, an apparatus, and a storage medium. The wireless communication method comprises: a first device receives first downlink control information (DCI) from a second device, the first DCI being used for indicating a resource of first downlink data transmitted by a first physical downlink shared channel (PDSCH); and the first device sends feedback information of the first downlink data to the second device by means of a first uplink channel.

Description

Wireless communication method, communication equipment, device and storage medium Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a wireless communication method, communication equipment, apparatus, and storage medium. Background Art

[0002] The ambient internet of things (A-IoT) uses energy harvesting and backscatter communication technologies, which are characterized by low power consumption and low cost. However, how to send information in the A-IoT is an urgent problem that needs to be solved.

[0003] Summary of the Invention

[0004] The present application provides a wireless communication method, communication equipment, apparatus, and storage medium. The following introduces various aspects of the present application.

[0005] In a first aspect, a wireless communication method is provided, including: a first device receives a first DCI sent by a second device, the first DCI being used to schedule the transmission of first downlink data; the first device sends first information to the second device, the first information being associated with the first DCI and / or the first downlink data; wherein the first information is carried on a first physical channel, and the first physical channel is a channel carrying uplink data or a random access channel.

[0006] In a second aspect, a wireless communication method is provided, including: a second device sends a first DCI to a first device, where the first DCI is used to schedule the transmission of first downlink data; the second device receives first information sent by the first device, where the first information is associated with the first DCI and / or the first downlink data; wherein the first information is carried on a first physical channel, which is a channel carrying uplink data or a random access channel.

[0007] In a third aspect, a communication device is provided, comprising a transceiver, a memory, and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the communication device executes the method described in the first aspect or the second aspect.

[0008] In a fourth aspect, a device is provided, comprising a processor configured to call a program from a memory so that the device executes the method described in the first aspect or the second aspect.

[0009] In a fifth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0010] In a sixth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0011] In a seventh aspect, a computer program product is provided, characterized in that it includes a program, and the program enables a computer to execute the method described in the first aspect or the second aspect.

[0012] In an eighth aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect or the second aspect.

[0013] In ordinary cellular communications other than A-IoT, the first information (such as feedback information) associated with the first DCI or the first downlink data channel is carried by the uplink control channel PUCCH. However, due to its simple structure, the A-IoT terminal device does not support information transmission on the PUCCH. Based on this, in the embodiment of the present application, the feedback information is carried by the first physical channel (the channel for uplink data or the random access channel), which helps to realize the transmission of feedback information in A-IoT. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a diagram illustrating an example of a system architecture of a wireless communication system to which an embodiment of the present application may be applied.

[0015] Figure 2 is a structural example diagram of an A-IoT terminal device.

[0016] FIG3 is a structural diagram of an energy harvesting module in FIG2 .

[0017] FIG4 is a schematic diagram of the backscatter communication process of an A-IoT terminal device.

[0018] FIG5 is an example diagram of the encoding method of an A-IoT terminal device.

[0019] FIG6 is a diagram illustrating an example of the system architecture of an A-IoT communication system provided in one embodiment of the present application.

[0020] FIG7 is a diagram showing an example of the system architecture of an A-IoT communication system provided in another embodiment of the present application.

[0021] FIG8 is a flow chart of a wireless communication method provided in one embodiment of the present application.

[0022] FIG9 is a structural diagram of a second device indicating a first physical channel resource provided by an embodiment of the present application.

[0023] FIG10 is a structural diagram of a second device indicating a first physical channel resource provided by another embodiment of the present application.

[0024] FIG11 is a structural diagram of a second device indicating a first physical channel resource provided by another embodiment of the present application.

[0025] FIG12 is a structural diagram of indicating the first physical channel resource based on the association relationship of data resources provided by an embodiment of the present application.

[0026] FIG13 is a schematic structural diagram of a communication device provided in one embodiment of the present application.

[0027] FIG14 is a schematic structural diagram of a communication device provided in another embodiment of the present application.

[0028] FIG15 is a schematic diagram of a device to which an embodiment of the present application can be applied. DETAILED DESCRIPTION

[0029] The technical solution in this application will be described below with reference to the accompanying drawings.

[0030] Communication system architecture

[0031] Figure 1 illustrates a wireless communication system 100 used in an embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographic area and may communicate with the terminal device 120 within the coverage area. The terminal device 120 may access a network (e.g., a wireless network) through the network device 110.

[0032] FIG1 exemplarily shows a network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0033] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0034] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0035] The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and an IoT terminal device, etc.

[0036] Alternatively, a UE can function as a base station. For example, a UE can act as a dispatching entity, providing sidelink signals between UEs in V2X or D2D applications. For example, a cell phone and a car can communicate with each other using sidelink signals. A cell phone and a smart home device can also communicate without relaying the communication signal through a base station.

[0037] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station can also refer to a communication module, a modem or a chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in device-to-device D2D, vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network equipment.

[0038] In some embodiments, a network device can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile network device, and one or more cells can move based on the location of the mobile network device. In other examples, a helicopter or drone can be configured to act as a device that communicates with another network device.

[0039] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

[0040] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0041] It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0042] A-IoT

[0043] A-IoT communication adopts energy harvesting and backscatter communication technology, and has the characteristics of low power consumption and low cost. The A-IoT terminal device in the embodiment of the present application may refer to an IoT device that uses various environmental energies (such as wireless radio frequency energy, light energy, solar energy, thermal energy, mechanical energy and other environmental energies) to drive itself. This A-IoT terminal device may have no energy storage capacity or may have a very limited energy storage capacity (such as using a capacitor with a capacity of tens of uF). Compared with existing IoT devices, A-IoT terminal devices have many advantages such as no conventional battery, no maintenance, small size, low complexity, low cost, and long life cycle. In this scenario, the terminal device 120 mentioned above can be called a "zero-power device" or "A-IoT terminal device". The working principle of the A-IoT terminal device is exemplarily introduced below in conjunction with Figures 2 to 7.

[0044] As shown in Figure 2 , the AIoT may include a network device 210 and an A-IoT terminal device 220. Network device 210 may be, for example, network device 110 in Figure 1 . A-IoT terminal device 220 may be, for example, terminal device 120 in Figure 1 . Network device 210 is configured to send wireless power supply signals to A-IoT terminal device 220 and receive backscattered signals from A-IoT terminal device 220.

[0045] In some embodiments, the A-IoT terminal device 220 may include an energy collection module 221 and a backscatter communication module 222. In some cases, the A-IoT terminal device 220 may also include a low-power computing module 223. The low-power computing module 223 can be used to provide computing functions for the A-IoT terminal device 220, such as data processing, etc. In other cases, the A-IoT terminal device 220 may also include a sensor module 224 for collecting external information (for example, ambient temperature, ambient humidity, etc.). In other cases, the A-IoT terminal device 220 may also include a storage module for storing some information (for example, external information collected by the above-mentioned sensors, or item identification, etc.).

[0046] The energy harvesting module 221 is used to harvest energy. In some implementations, energy can be harvested via a power supply signal sent by another device or from the external environment. The power supply signal can be a radio frequency signal sent by the network device 210. Therefore, the energy harvesting module can be a radio frequency (RF) power harvesting module.

[0047] FIG3 shows a possible structure of the energy harvesting module 221. As shown in FIG3, the energy harvesting module 221 can harvest the energy of the spatial electromagnetic waves of the radio frequency signal based on the principle of electromagnetic induction, and store the harvested energy in the capacitor C, which is the process of charging the capacitor C. When the charging process of the capacitor C is completed, the capacitor C can begin to discharge to provide energy to the A-IoT terminal device 220. For example, the discharge of the capacitor C can be used to drive the A-IoT terminal device 220 to perform low-power demodulation of data sent by other devices. For another example, the discharge of the capacitor C can be used to drive the A-IoT terminal device 220 to modulate the data to be sent. For another example, the discharge of the capacitor C can be used to drive the sensor of the A-IoT terminal device 220 to collect data. For another example, the discharge of the capacitor C can be used to drive the A-IoT terminal device 220 to read data from the memory 215, etc.

[0048] The following describes the backscattering communication principle in conjunction with Figure 4. Referring to Figure 4, the A-IoT terminal device 220 receives a wireless signal sent by another device (such as the network device 210) and modulates the wireless signal to load the data to be sent. Then, the A-IoT terminal device 220 radiates the modulated signal from the antenna. This information transmission process is called backscattering communication. The above-mentioned wireless signal can also be called a carrier signal. A carrier signal can refer to an unmodulated wireless signal. The carrier signal can be, for example, a sine wave signal. Among them, backscattering communication and load modulation functions are inseparable. The load modulation function can be understood as adjusting and controlling the circuit parameters of the oscillation circuit of the A-IoT terminal device according to the beat of the data stream, so that parameters such as the impedance of the A-IoT terminal device change accordingly, thereby completing the modulation process.

[0049] In some implementations, the A-IoT terminal device 220 may also be provided with a logic processing unit to perform corresponding computing functions.

[0050] Generally, the load modulation function can be implemented through two methods: resistive load modulation and capacitive load modulation. Figure 5 shows a circuit diagram of an A-IoT terminal device based on resistive load modulation technology. In resistive load modulation, a resistor RL can be connected in parallel to the load. The switch S can be controlled based on the binary data stream to realize the connection or disconnection of the resistor RL. In this way, the connection and disconnection of the resistor RL will cause a change in the circuit voltage, and the change in the circuit voltage can control the amplitude of the backscattered signal of the A-IoT terminal device, thereby realizing the modulation of the backscattered signal, that is, performing amplitude-shift keying (ASK) modulation on the backscattered signal.

[0051] Similarly, in capacitive load modulation, the on / off switching of the capacitor can be controlled based on a binary data stream to change the circuit resonant frequency, thereby changing the operating frequency of the backscattered signal to implement frequency-shift keying (FSK) modulation.

[0052] It can be seen that the A-IoT terminal device uses load modulation to modulate the incoming signal, thereby realizing the backscatter communication process. Therefore, the A-IoT terminal device has significant advantages: (1) The A-IoT terminal device does not actively transmit signals, so it does not require a complex RF link, such as a power amplifier, RF filter, etc.; (2) The A-IoT terminal device does not need to actively generate high-frequency signals, so it does not need a high-frequency crystal oscillator; (3) With the help of backscatter communication, the signal transmission of the A-IoT terminal device does not consume the terminal's own energy.

[0053] In some implementations, A-IoT devices can be battery-free, but batteries can also be configured. Based on the energy source and usage, A-IoT devices can be categorized as passive, semi-passive, and active.

[0054] Passive A-IoT terminal devices do not require internal batteries. When approaching a network device (such as a radio frequency identification (RFID) reader), the A-IoT terminal device is within the near-field radiation generated by the network device's antenna. Consequently, the A-IoT terminal device's antenna generates an induced current through electromagnetic induction, which drives the A-IoT terminal device's low-power chip circuitry. This performs tasks such as demodulating the forward link signal (downlink, from the network device to the A-IoT terminal device) and modulating the backward link signal (uplink, from the A-IoT terminal device to the network device). For the backscatter link, the A-IoT terminal device uses backscattering to transmit signals. Consequently, passive A-IoT terminal devices require no internal battery for either the forward or reverse link, making them truly zero-power devices. Passive A-IoT terminal devices do not require batteries, and their RF and baseband circuits are very simple. For example, they do not require components such as low-noise amplifiers, power amplifiers, crystal oscillators, and analog-to-digital converters. Consequently, they offer numerous advantages, including small size, light weight, low cost, and long service life.

[0055] Semi-passive A-IoT terminal devices do not have conventional batteries themselves. Instead, they use RF energy harvesting modules to harvest radio wave energy, or solar, light, thermal, or kinetic energy harvesting modules to harvest energy. This harvested energy is then stored in an energy storage unit (such as a capacitor). This energy storage unit then drives the A-IoT terminal device's low-power chip circuitry, performing tasks such as demodulating forward link signals and modulating reverse link signals. For the backscatter link, the A-IoT terminal device uses backscattering to transmit signals. As can be seen, semi-passive A-IoT terminal devices do not require internal batteries for either the forward or reverse link. While capacitors are used for energy storage, this energy is derived from radio energy harvested by the energy harvesting module, making them truly zero-power devices. Semi-passive A-IoT terminal devices inherit many of the advantages of passive A-IoT terminal devices, offering advantages such as small size, light weight, low price, and long service life.

[0056] Active A-IoT terminal devices can have built-in batteries (conventional batteries, such as dry cells or rechargeable lithium batteries). These batteries power the low-power chip circuitry in the A-IoT terminal device, performing tasks such as demodulating forward link signals and modulating reverse link signals. However, for the backscatter link, the A-IoT terminal device uses backscattering to transmit signals. Therefore, the zero-power nature of active A-IoT terminal devices is primarily due to the fact that reverse link signal transmission does not require the terminal's own power, but instead utilizes backscattering. Although active A-IoT terminal devices utilize batteries, their ultra-low power communication technology results in very low power consumption, significantly extending battery life compared to existing technologies. The built-in battery in active A-IoT terminal devices powers the RFID chip, increasing the tag's read and write range and improving communication reliability. Therefore, active A-IoT terminal devices are suitable for scenarios with relatively high requirements for communication range and read latency.

[0057] It should be understood that the services of the Ambient IoT, like those of other IoT services, are primarily uplink services. In some implementations, A-IoT terminal devices can be further categorized based on transmitter type: backscatter-based A-IoT terminal devices, active transmitter-based A-IoT terminal devices, and A-IoT terminal devices with both backscatter and active transmitters.

[0058] Backscatter-based A-IoT terminal devices use the backscatter method described above to transmit uplink data. These devices lack active transmitters, only backscatter transmitters. Therefore, when these terminals transmit data, they require network equipment to provide a carrier, which they then use to perform backscattering to achieve data transmission.

[0059] Active transmitter-based A-IoT terminal devices can use active transmitters with active transmission capabilities for uplink data transmission. Therefore, when sending data, such A-IoT terminal devices can use their own active transmitters to send data without the need for network equipment to provide a carrier. Active transmitters suitable for A-IoT terminal devices can include ultra-low power ASK transmitters and ultra-low power FSK transmitters. Based on current implementation examples, such transmitters can reduce overall power consumption to 400-600uW when transmitting a 100uW signal.

[0060] A-IoT devices with both backscatter and active transmitters can support both. The terminal can determine which uplink signal transmission method to use: backscatter or active transmission using an active transmitter, based on various conditions (such as battery life and available ambient energy) or based on network device scheduling.

[0061] The cellular Internet of Things (IoT) is booming. The 3rd Generation Partnership Project (3GPP) has standardized IoT technologies such as narrowband IoT (NB-IoT), machine-type communications (MTC), and reduced capability (REDCAP). However, many IoT communication requirements remain unmet using existing technologies, including harsh communication environments (high and low temperatures, high humidity, high voltage, high radiation, or high-speed motion), the need for extremely small terminal form factors, and extremely low costs. Therefore, to address these unmet IoT communication needs, cellular networks also need to develop ultra-low-cost, extremely small, and battery- and maintenance-free IoT solutions. Environmental IoT precisely addresses this need.

[0062] Based on the discussion of A-IoT application scenarios in 3GPP SA1, A-IoT can be used in at least the following four scenarios: (1) Object recognition, such as logistics, production line product management, and supply chain management. (2) Environmental monitoring, such as temperature, humidity, and harmful gas monitoring in the working environment and natural environment. (3) Positioning, such as indoor positioning, intelligent object search, and production line item positioning. (4) Intelligent control, such as intelligent control of various electrical appliances in smart homes (turning on and off air conditioners, adjusting temperatures), and intelligent control of various facilities in agricultural greenhouses (automatic irrigation and fertilization).

[0063] In a low-power IoT based on a cellular network, as shown in FIG6 , the A-IoT terminal device 220 can directly transmit and receive carrier signals from the network device 210 and send or backscatter corresponding data or signals to the network device 210. In other implementations, as shown in FIG7 , communication between the A-IoT terminal device 220 and the network device 210 can also be achieved through an intermediate node 230 (such as a relay node). In this case, the intermediate node 230 sends a carrier signal to the A-IoT terminal device 220, and the A-IoT terminal device 220 sends or backscatters corresponding data or signals to the intermediate node 230.

[0064] As described above, ambient IoT communications utilize energy harvesting and backscatter communication technologies, resulting in low power consumption and low cost. However, how to send information within the ambient IoT remains a pressing issue.

[0065] It should be understood that in ordinary cellular communications other than A-IoT, the first information (such as feedback information) associated with the first DCI or the first downlink data channel is carried by the uplink control channel PUCCH. However, due to its simple structure, the A-IoT terminal device does not support information transmission on the PUCCH. Based on this, in an embodiment of the present application, the feedback information is carried by the first physical channel (the channel for uplink data or the random access channel), which helps to realize the transmission of feedback information in A-IoT. The wireless communication method is described in detail below with reference to Figure 8.

[0066] Figure 8 is a schematic flow chart of the wireless communication method proposed in an embodiment of the present application. The non-communication method shown in Figure 8 is introduced from the perspective of communication between the first device and the second device. The first device and the second device in Figure 8 can be two communication devices at both ends of a communication link. The first device can be the receiving end of the communication link, and the second device can be the transmitting end of the communication link. The first device can be, for example, the A-IoT terminal device 220 in Figure 2 above, and the second device can be, for example, the network device 210 in Figure 2 above. In other implementations, the second device can also be, for example, the intermediate node 230 in Figure 7 above. In this case, the first device communicates with the network device based on the intermediate node.

[0067] As shown in Figure 8, in step S810, the first device receives first downlink control information (DCI) sent by the second device. The first DCI may refer to any downlink control information sent by the second device, and the first DCI may be used to schedule the transmission of first downlink data. For example, the first downlink data may refer to a data signal sent by the second device (e.g., a network device) to the first device (e.g., an A-IoT terminal device).

[0068] In step S820, the first device sends first information to the second device. The first information may be associated with the first DCI and / or the first downlink data. The first information may be carried on a first physical channel, which may be a channel carrying uplink data or a random access channel (RACH). The random access channel may be a physical random access channel (PRACH).

[0069] The first information may refer to feedback information of the first DCI and / or the first downlink data. The first information may be, for example, negative acknowledgment (NACK) information or acknowledgment (ACK) information.

[0070] In some implementations, the first information is any one of the following information: physical layer information, media access control (MAC) layer information, radio resource control (RRC) layer information, non-access stratum (NAS) information, or application layer information.

[0071] In some implementations, the first information includes one or more of the following information: identification information of the first device, such as an identification code (ID) of the first device; identification information associated with the first DCI (such as an ID associated with the first DCI); identification information associated with the first downlink data (such as an ID associated with the first downlink data).

[0072] In the embodiments of the present application, the transmission resources of the first physical channel can be indicated in various ways. For example, the transmission resources of the first physical channel can be indicated by the second device. In another example, the transmission resources of the first physical channel can be indicated by an association between the transmission resources of the first DCI or first downlink data and the transmission resources of the first physical channel. The following describes the method in which the second device indicates the transmission resources of the first physical channel with reference to an example.

[0073] In some implementations, the transmission resource of the first physical channel may be determined based on first indication information sent by the second device. For example, the first indication information may indicate one or more of the following: a start time corresponding to the transmission resource of the first physical channel; or a duration corresponding to the transmission resource of the first physical channel. Of course, the first indication information may also indicate an end time corresponding to the transmission resource of the first physical channel.

[0074] In some implementations, the first indication information may be carried in the first DCI. That is, the first DCI may be used to indicate the transmission resource of the first downlink data, and the first DCI may also be used to indicate the transmission resource of the first physical channel, as shown in FIG9 .

[0075] In some implementations, the time interval (t1) between the transmission resource of the first DCI and the transmission resource of the first downlink data may be 0 or non-zero, that is, there may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data. If there is a time interval, the time interval may be defined by the standard or configured by the second device.

[0076] In some implementations, referring to Figure 9 , the time interval (t2) between the transmission resources of the first downlink data and the transmission resources of the first physical channel is greater than or equal to the first time interval, thereby ensuring that the first device is provided with sufficient time to process the first downlink data and prepare for the transmission of the first information.

[0077] In other implementations, the time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is less than or equal to the second time interval, thereby ensuring that when the first device sends the first information (such as feedback information), the timing deviation is less than a specific value so that it can be correctly received by the second device and energy loss of the first device is saved. It should be understood that the specific value in the embodiments of the present application is a preset threshold value, which can be configured by the network device or a predefined configuration.

[0078] In some implementations, the first indication information may also be carried in the first downlink data. That is, the first DCI may be used to indicate the transmission resource of the first downlink data, and the first downlink data may be used to indicate the transmission resource of the first physical channel, as shown in FIG10 .

[0079] In some implementations, the time interval (t1) between the transmission resource of the first DCI and the transmission resource of the first downlink data may be 0 or non-zero, that is, there may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data. If there is a time interval, the time interval may be defined by the standard or configured by the second device.

[0080] In some implementations, referring to Figure 10 , the time interval (t2) between the transmission resources of the first downlink data and the transmission resources of the first physical channel is greater than or equal to the first time interval, thereby ensuring that sufficient time is provided to the first device to process the first downlink data and prepare for the transmission of the first information.

[0081] In other implementations, the time interval between the transmission resources of the first downlink data and the transmission resources of the first physical channel is less than or equal to the second time interval, thereby ensuring that when the first device sends the first information (such as feedback information), the timing deviation is less than a specific value so that it can be correctly received by the second device and save energy loss of the first device.

[0082] It should be noted that the first time interval is greater than 0, the first time interval can be determined based on protocol predefined information or configuration information of the second device, and the second time interval can be determined based on protocol predefined information or configuration information of the second device.

[0083] In some implementations, when the first information is carried in the first downlink data, the first information may occupy N bits of the bit information carried by the first downlink data. The N bits of information may be used to indicate the uplink transmission resource of the first information. The N bits of information may be, for example, the last N bits or the first N bits of the first downlink data, where N is a specific value that may be defined by a standard or configured by the second device.

[0084] In some implementations, the first DCI may also be used to indicate whether the first downlink data includes the first indication information.

[0085] In some implementations, the first indication information may also be carried in a second DCI, and the second DCI may be used to schedule the transmission of the first information. That is, the first DCI may be used to indicate the transmission resources of the first downlink data, and the second DCI may be used to indicate the transmission resources of the first information, as shown in FIG11 .

[0086] In some implementations, the second DCI may refer to downlink control information sent by the second device that is different from the first DCI. Using different DCIs to indicate the transmission resources for the first downlink data and the transmission resources for the first information, respectively, helps simplify data signal transmission on the downlink data channel and the downlink control channel.

[0087] In some implementations, the format of the first DCI may be the same as the format of the second DCI; of course, the format of the first DCI may also be different from the format of the second DCI.

[0088] In order to facilitate identification of the association between the first downlink data scheduled by the first DCI and the first information scheduled by the second DCI, the first downlink data scheduled by the first DCI needs to satisfy one or more of the following: the first downlink data is associated with a first index, and the first index is the same as the index carried in the second DCI; and / or, the first downlink data is the last downlink data received by the first device before sending the first information; and / or, after receiving the first downlink data, the first device does not expect to receive the second downlink data sent by the second device before sending the first information, and the second downlink data is not associated with the first information.

[0089] In some implementations, the first index is carried in the first DCI, and the first index is the same as the index carried in the second DCI. Based on the same index, it can be determined that there is an association between the first downlink data scheduled by the first DCI and the first information scheduled by the second DCI. For example, based on the same index, it can be determined that the first information is feedback information of the first downlink data.

[0090] In some implementations, the index may be indicated by bit information. For example, the index may be indicated by 2 bits, with a value range of 0, 1, 2, or 3, and may be used to uniquely identify multiple downlink transmissions sent from the second device to the first device.

[0091] In some implementations, the first downlink data is the last downlink data received by the first terminal device that satisfies a first condition, where the first condition includes a time interval (t3) between a transmission resource of the first downlink data and a transmission resource of the second DCI being greater than or equal to a third time interval. The third time interval is determined based on protocol predefined information or configuration information of the second device.

[0092] It can be understood that the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI may refer to the time interval between the start time of the transmission resource of the first downlink data and the start time of the transmission resource of the second DCI, or the time interval between the start time of the transmission resource of the first downlink data and the end time of the transmission resource of the second DCI, or the time interval between the end time of the transmission resource of the first downlink data and the start time of the transmission resource of the second DCI, or the time interval between the end time of the transmission resource of the first downlink data and the end time of the transmission resource of the second DCI. This application does not impose any specific restrictions on this.

[0093] In some implementations, the first downlink data is the last downlink transmission data received by the first terminal device that meets the first condition, the first condition including that the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is greater than or equal to the third time interval, and after receiving the first downlink data, the first device does not expect to receive the second downlink data sent by the second device before sending the first information, and the second downlink data is not associated with the first information. That is, after receiving the first downlink data, the first device does not expect to receive another downlink data requiring feedback information before sending the first information associated with the first downlink transmission.

[0094] In some implementations, the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is greater than or equal to a third time interval, and the third time interval is greater than 0, thereby helping to ensure that sufficient time is provided for the first device to prepare for the transmission of the first information. In addition, the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is less than or equal to a fourth time interval, thereby ensuring that the timing deviation of the first device when transmitting the first information is less than a specific value, so that it can be correctly received by the second device and reducing energy consumption of the first device.

[0095] In some implementations, referring again to FIG. 11 , the time interval (t1) between the transmission resource of the first DCI and the transmission resource of the first downlink data may be 0 or non-zero, i.e., there may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data. If there is a time interval, the time interval may be defined by a standard or configured by the second device.

[0096] In some implementations, a time interval (t4) between the transmission resources of the second DCI and the transmission resources of the first physical channel is greater than or equal to a preset threshold, which may be 0.

[0097] The above mainly introduces the second device indicating the transmission resources of the first physical channel. The following describes in detail the manner in which the transmission resources of the first physical channel are indicated by the association between the transmission resources of the first DCI or first downlink data and the transmission resources of the first physical channel, with reference to an example.

[0098] In some implementations, the transmission resources of the first physical channel are determined based on one or more of: an association between the transmission resources of the first DCI and the transmission resources of the first physical channel; an association between the transmission resources of the first downlink data and the transmission resources of the first physical channel.

[0099] In some implementations, the first DCI may be used to indicate the transmission resources of the first downlink data, and there is an association between the transmission resources of the first downlink data and the transmission resources of the first physical channel. Then, the transmission resources of the first physical channel may be indicated based on the association, as shown in FIG12 .

[0100] In some implementations, in order to facilitate determination of the aforementioned association relationship, the transmission resource of the first information may be a transmission resource with a fixed time length.

[0101] In some implementations, a time interval between a transmission resource of the first physical channel and a transmission resource of the first downlink data is less than or equal to a first threshold, and the first threshold is determined based on protocol predefined information or configuration information of the second device.

[0102] For example, referring to Figure 12, the time length of the uplink resource for sending the first information (i.e., the transmission resource of the first physical channel) is D1, and the distance between the time starting point of the uplink resource of the first information and the transmission end point of the first downlink data is d1. Both D1 and d1 can be defined by the standard or configured by the second device.

[0103] It should be understood that the configured value of d1 should be smaller than a preset threshold, so that the timing deviation of the first device when sending the first information does not exceed the receiving capability of the second device, or does not affect the transmission of other devices.

[0104] In some implementations, the time length (D1) corresponding to the transmission resource of the first physical channel can be determined based on protocol predefined information or configuration information of the second device; the time interval (d1) between the transmission resource of the first physical channel and the transmission resource of the first downlink data is determined based on protocol predefined information or configuration information of the second device.

[0105] In some implementations, with continued reference to FIG. 12 , the time interval (t1) between the transmission resource of the first DCI and the transmission resource of the first downlink data may be 0 or non-zero, i.e., there may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data. If there is a time interval, the time interval may be defined by a standard or configured by the second device.

[0106] In some implementations, the first physical channel is a random access channel, and code domain information of the random access channel is indicated based on the first DCI or the second DCI, and the second DCI is used to schedule transmission of the first information.

[0107] In some implementations, the first physical channel is a random access channel, and the code domain information of the random access channel is determined based on one or more of the following: identification information of the physical layer of the first device (such as the physical layer ID of the first device); cyclic redundancy check CRC of the first downlink data; CRC of the first DCI; indication information in the first DCI; indication information in the first downlink data.

[0108] In some implementations, after receiving the first DCI or the first downlink data, the first device may send corresponding feedback information to the second device. If the first device does not receive the first DCI or the first downlink data, the first device may not send the corresponding feedback information to the second device. In this case, if the second device does not receive the feedback information from the first device, the second device may resend the first DCI or the first downlink data to the first device.

[0109] In some other implementations, after receiving the first DCI or first downlink data, the first device may send corresponding first feedback information (such as ACK information) to the second device. If the first device does not receive the first DCI or first downlink data, the first device may send corresponding second feedback information (such as NACK information) to the second device. In this case, if the second device receives the second feedback information of the first device, the second device may resend the first DCI or first downlink data to the first device.

[0110] In some implementations, there may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data. If there is a time interval, the time interval may be defined by a standard or configured by the second device.

[0111] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 12. The device embodiment of the present application is described in detail below in conjunction with Figures 13 to 15. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment. Therefore, for parts not described in detail, reference can be made to the above method embodiment.

[0112] Figure 13 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. The communication device 1300 shown in Figure 13 is a first device, and includes a receiving unit 1310 and a sending unit 1320. The receiving unit 1310 is configured to receive first downlink control information (DCI) sent by a second device, where the first DCI is used to schedule the transmission of first downlink data; the sending unit 1320 is configured to send first information to the second device, where the first information is associated with the first DCI and / or the first downlink data; wherein the first information is carried on a first physical channel, which is a channel carrying uplink data or a random access channel.

[0113] In some implementations, the transmission resource of the first physical channel is determined based on first indication information sent by the second device.

[0114] In some implementations, the first indication information is carried in the first DCI and / or the first downlink data.

[0115] In some implementations, the time interval between the transmission resources of the first downlink data and the transmission resources of the first physical channel is greater than or equal to a first time interval; and / or the time interval between the transmission resources of the first downlink data and the transmission resources of the first physical channel is less than or equal to a second time interval.

[0116] In some implementations, the first time interval is determined based on protocol predefined information or configuration information of the second device; and / or the second time interval is determined based on protocol predefined information or configuration information of the second device.

[0117] In some implementations, the first indication information is carried in a second DCI, and the second DCI is used to schedule the transmission of the first information.

[0118] In some implementations, the format of the first DCI is the same as the format of the second DCI; or, the format of the first DCI is different from the format of the second DCI.

[0119] In some implementations, the first downlink data is associated with a first index, and the first index is the same as the index carried in the second DCI.

[0120] In some implementations, the first index is carried in the first DCI.

[0121] In some implementations, the first downlink data satisfies one or more of the following: the first downlink data is the last downlink data received by the first device before sending the first information; and / or, after receiving the first downlink data, the first device does not expect to receive second downlink data sent by the second device before sending the first information, and the second downlink data is not associated with the first information.

[0122] In some implementations, the first downlink data is the last downlink data received by the first device that meets a first condition, and the first condition includes that the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is greater than or equal to a third time interval.

[0123] In some implementations, the third time interval is determined based on protocol predefined information or configuration information of the second device.

[0124] In some implementations, the first indication information is used to indicate one or more of the following: a start time corresponding to the transmission resource of the first physical channel; and a time length corresponding to the transmission resource of the first physical channel.

[0125] In some implementations, the transmission resources of the first physical channel are determined based on one or more of: an association between the transmission resources of the first DCI and the transmission resources of the first physical channel; an association between the transmission resources of the first downlink data and the transmission resources of the first physical channel.

[0126] In some implementations, the time length corresponding to the transmission resources of the first physical channel is determined based on protocol predefined information or configuration information of the second device; the time interval between the transmission resources of the first physical channel and the transmission resources of the first downlink data is determined based on protocol predefined information or configuration information of the second device.

[0127] In some implementations, the time interval between the transmission resources of the first physical channel and the transmission resources of the first downlink data is less than or equal to a first threshold, and the first threshold is determined based on protocol predefined information or configuration information of the second device.

[0128] In some implementations, the transmission resource of the first information is a transmission resource with a fixed time length.

[0129] In some implementations, there may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data.

[0130] In some implementations, the first physical channel is a random access channel, and code domain information of the random access channel is indicated based on the first DCI or the second DCI, and the second DCI is used to schedule transmission of the first information.

[0131] In some implementations, the first physical channel is a random access channel, and the code domain information of the random access channel is determined based on one or more of the following: identification information of the physical layer of the first device; cyclic redundancy check CRC of the first downlink data; CRC of the first DCI; indication information in the first DCI; indication information in the first downlink data.

[0132] In some implementations, the first information is feedback information of the first DCI and / or the first downlink data.

[0133] In some implementations, the first information includes one or more of the following information: identification information of the first device; identification information associated with the first DCI; and identification information associated with the first downlink data.

[0134] In some implementations, the first device is an A-IoT terminal device.

[0135] In some implementations, the second device is: a network device; or an intermediate node, and the first device communicates with the network device based on the intermediate node.

[0136] Figure 14 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. The communication device 1400 shown in Figure 14 is a second device, and includes a transmitting unit 1410 and a receiving unit 1420. The transmitting unit 1410 is configured to transmit first downlink control information (DCI) to a first device, where the first DCI is used to schedule the transmission of first downlink data; the receiving unit 1420 is configured to receive first information transmitted by the first device, where the first information is associated with the first DCI and / or the first downlink data; wherein the first information is carried on a first physical channel, which is a channel carrying uplink data or a random access channel.

[0137] In some implementations, the transmission resource of the first physical channel is determined based on first indication information sent by the second device.

[0138] In some implementations, the first indication information is carried in the first DCI and / or the first downlink data.

[0139] In some implementations, the time interval between the transmission resources of the first downlink data and the transmission resources of the first physical channel is greater than or equal to a first time interval; and / or the time interval between the transmission resources of the first downlink data and the transmission resources of the first physical channel is less than or equal to a second time interval.

[0140] In some implementations, the first time interval is determined based on protocol predefined information or configuration information of the second device; and / or the second time interval is determined based on protocol predefined information or configuration information of the second device.

[0141] In some implementations, the first indication information is carried in a second DCI, and the second DCI is used to schedule the transmission of the first information.

[0142] In some implementations, the format of the first DCI is the same as the format of the second DCI; or, the format of the first DCI is different from the format of the second DCI.

[0143] In some implementations, the first downlink data is associated with a first index, and the first index is the same as the index carried in the second DCI.

[0144] In some implementations, the first index is carried in the first DCI.

[0145] In some implementations, the first downlink data satisfies one or more of the following: the first downlink data is the last downlink data received by the first device before sending the first information; and / or, after receiving the first downlink data, the first device does not expect to receive second downlink data sent by the second device before sending the first information, and the second downlink data is not associated with the first information.

[0146] In some implementations, the first downlink data is the last downlink data received by the first device that meets a first condition, and the first condition includes that the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is greater than or equal to a third time interval.

[0147] In some implementations, the third time interval is determined based on protocol predefined information or configuration information of the second device.

[0148] In some implementations, the first indication information is used to indicate one or more of the following: a start time corresponding to the transmission resource of the first physical channel; and a time length corresponding to the transmission resource of the first physical channel.

[0149] In some implementations, the transmission resources of the first physical channel are determined based on one or more of: an association between the transmission resources of the first DCI and the transmission resources of the first physical channel; an association between the transmission resources of the first downlink data and the transmission resources of the first physical channel.

[0150] In some implementations, the time length corresponding to the transmission resources of the first physical channel is determined based on protocol predefined information or configuration information of the second device; the time interval between the transmission resources of the first physical channel and the transmission resources of the first downlink data is determined based on protocol predefined information or configuration information of the second device.

[0151] In some implementations, the time interval between the transmission resources of the first physical channel and the transmission resources of the first downlink data is less than or equal to a first threshold, and the first threshold is determined based on protocol predefined information or configuration information of the second device.

[0152] In some implementations, the transmission resource of the first information is a transmission resource with a fixed time length.

[0153] In some implementations, there may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data.

[0154] In some implementations, the first physical channel is a random access channel, and code domain information of the random access channel is indicated based on the first DCI or the second DCI, and the second DCI is used to schedule transmission of the first information.

[0155] In some implementations, the first physical channel is a random access channel, and the code domain information of the random access channel is determined based on one or more of the following: identification information of the physical layer of the first device; cyclic redundancy check CRC of the first downlink data; CRC of the first DCI; indication information in the first DCI; indication information in the first downlink data.

[0156] In some implementations, the first information is feedback information of the first DCI and / or the first downlink data.

[0157] In some implementations, the first information includes one or more of the following information: identification information of the first device; identification information associated with the first DCI; and identification information associated with the first downlink data.

[0158] In some implementations, the first device is an A-IoT terminal device.

[0159] In some implementations, the second device is: a network device; or an intermediate node, and the first device communicates with the network device based on the intermediate node.

[0160] FIG15 is a schematic block diagram of a communication device to which embodiments of the present application may be applied. The dashed lines in FIG15 indicate that the unit or module is optional. Apparatus 1500 may be used to implement the method described in the above method embodiment. Apparatus 1500 may be a chip or a communication device.

[0161] The device 1500 may include one or more processors 1510. The processor 1510 may support the device 1500 to implement the method described in the method embodiment above. The processor 1510 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0162] The apparatus 1500 may further include one or more memories 1520. The memories 1520 store programs that can be executed by the processor 1510, causing the processor 1510 to perform the methods described in the above method embodiments. The memories 1520 may be independent of the processor 1510 or integrated into the processor 1510.

[0163] The apparatus 1500 may further include a transceiver 1530. The processor 1510 may communicate with other devices or chips via the transceiver 1530. For example, the processor 1510 may transmit and receive data with other devices or chips via the transceiver 1530.

[0164] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the first network element, application function network element, or first communication device provided in the present application, and the program causes a computer to execute the method performed by the first network element, application function network element, or first communication device in each embodiment of the present application.

[0165] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the first network element, application function network element, or first communication device provided in the embodiments of the present application, and the program causes a computer to execute the method performed by the first network element, application function network element, or first communication device in various embodiments of the present application.

[0166] The present application also provides a computer program. This computer program can be applied to the first network element, application function network element, or first communication device provided in the present application, and the computer program causes a computer to execute the method performed by the first network element, application function network element, or first communication device in each embodiment of the present application.

[0167] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0168] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0169] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0170] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0171] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0172] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0173] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0174] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0175] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0176] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0177] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0178] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0179] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The first device receives first downlink control information DCI sent by the second device, where the first DCI is used to schedule transmission of first downlink data; The first device sends first information to the second device, where the first information is associated with the first DCI and / or the first downlink data; The first information is carried on a first physical channel, and the first physical channel is a channel carrying uplink data or a random access channel.

2. The method according to claim 1, characterized in that The transmission resource of the first physical channel is determined based on the first indication information sent by the second device.

3. The method according to claim 2, characterized in that The first indication information is carried in the first DCI and / or the first downlink data.

4. The method according to claim 3, wherein: The time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is greater than or equal to a first time interval; and / or The time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is less than or equal to a second time interval.

5. The method according to claim 4, characterized in that: The first time interval is determined based on protocol predefined information or configuration information of the second device; and / or The second time interval is determined based on protocol predefined information or configuration information of the second device.

6. The method according to claim 2, characterized in that The first indication information is carried in a second DCI, and the second DCI is used to schedule the transmission of the first information.

7. The method according to claim 6, characterized in that: The format of the first DCI is the same as the format of the second DCI; or, A format of the first DCI is different from a format of the second DCI.

8. The method according to claim 6 or 7, characterized in that The first downlink data is associated with a first index, and the first index is the same as the index carried in the second DCI.

9. The method according to claim 8, characterized in that The first index is carried in the first DCI.

10. The method according to claim 6, characterized in that The first downlink data satisfies one or more of the following: The first downlink data is the last downlink data received by the first device before sending the first information; and / or, After receiving the first downlink data, the first device does not expect to receive second downlink data sent by the second device before sending the first information, and the second downlink data is not associated with the first information.

11. The method according to claim 6, characterized in that The first downlink data is the last downlink data received by the first device that meets a first condition, where the first condition includes that the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is greater than or equal to a third time interval.

12. The method according to claim 11, characterized in that The third time interval is determined based on protocol predefined information or configuration information of the second device.

13. The method according to any one of claims 1 to 12, characterized in that The first indication information is used to indicate one or more of the following: A start time corresponding to the transmission resource of the first physical channel; The time length corresponding to the transmission resource of the first physical channel.

14. The method according to claim 1, wherein The transmission resource of the first physical channel is determined based on one or more of the following: an association relationship between the transmission resources of the first DCI and the transmission resources of the first physical channel; The association relationship between the transmission resources of the first downlink data and the transmission resources of the first physical channel.

15. The method according to claim 14, characterized in that: The time length corresponding to the transmission resource of the first physical channel is determined based on protocol predefined information or configuration information of the second device; The time interval between the transmission resource of the first physical channel and the transmission resource of the first downlink data is determined based on protocol predefined information or configuration information of the second device.

16. The method according to claim 15, characterized in that The time interval between the transmission resource of the first physical channel and the transmission resource of the first downlink data is less than or equal to a first threshold, and the first threshold is determined based on protocol predefined information or configuration information of the second device.

17. The method according to any one of claims 14 to 16, characterized in that The transmission resource of the first information is a transmission resource with a fixed time length.

18. The method according to any one of claims 1 to 17, characterized in that There may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data.

19. The method according to any one of claims 1 to 18, characterized in that The first physical channel is a random access channel, and code domain information of the random access channel is based on the first DCI or the second DCI indication, and the second DCI is used to schedule transmission of the first information.

20. The method according to claim 19, characterized in that The first physical channel is a random access channel, and code domain information of the random access channel is determined based on one or more of the following: identification information of the physical layer of the first device; A cyclic redundancy check (CRC) of the first downlink data; a CRC of the first DCI; indication information in the first DCI; The indication information in the first downlink data.

21. The method according to any one of claims 1 to 20, characterized in that The first information is feedback information of the first DCI and / or the first downlink data.

22. The method according to any one of claims 1 to 21, characterized in that The first information includes one or more of the following information: identification information of the first device; identification information associated with the first DCI; Identification information associated with the first downlink data.

23. The method according to any one of claims 1 to 22, characterized in that The first device is an environmental Internet of Things A-IoT terminal device.

24. The method according to any one of claims 1 to 23, characterized in that The second device is: Network equipment; or An intermediate node, the first device communicates with a network device based on the intermediate node.

25. A wireless communication method, characterized in that: include: The second device sends first downlink control information DCI to the first device, where the first DCI is used to schedule transmission of first downlink data; The second device receives first information sent by the first device, where the first information is associated with the first DCI and / or the first downlink data; The first information is carried on a first physical channel, and the first physical channel is a channel carrying uplink data or a random access channel.

26. The method according to claim 25, characterized in that The transmission resource of the first physical channel is determined based on the first indication information sent by the second device.

27. The method according to claim 26, characterized in that The first indication information is carried in the first DCI and / or the first downlink data.

28. The method according to claim 27, wherein: The time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is greater than or equal to a first time interval; and / or The time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is less than or equal to a second time interval.

29. The method according to claim 28, wherein: The first time interval is determined based on protocol predefined information or configuration information of the second device; and / or The second time interval is determined based on protocol predefined information or configuration information of the second device.

30. The method according to claim 26, wherein The first indication information is carried in a second DCI, and the second DCI is used to schedule the transmission of the first information.

31. The method according to claim 30, wherein: The format of the first DCI is the same as the format of the second DCI; or, A format of the first DCI is different from a format of the second DCI.

32. The method according to claim 30 or 31, characterized in that The first downlink data is associated with a first index, and the first index is the same as the index carried in the second DCI.

33. The method according to claim 32, characterized in that The first index is carried in the first DCI.

34. The method according to claim 30, wherein The first downlink data satisfies one or more of the following: The first downlink data is the last downlink data received by the first device before sending the first information; and / or, After receiving the first downlink data, the first device does not expect to receive second downlink data sent by the second device before sending the first information, and the second downlink data is not associated with the first information.

35. The method according to claim 30, wherein The first downlink data is the last downlink data received by the first device that meets a first condition, where the first condition includes that the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is greater than or equal to a third time interval.

36. The method according to claim 35, characterized in that The third time interval is determined based on protocol predefined information or configuration information of the second device.

37. The method according to any one of claims 25 to 36, characterized in that The first indication information is used to indicate one or more of the following: A start time corresponding to the transmission resource of the first physical channel; The time length corresponding to the transmission resource of the first physical channel.

38. The method according to claim 25, wherein The transmission resource of the first physical channel is determined based on one or more of the following: an association relationship between the transmission resources of the first DCI and the transmission resources of the first physical channel; The association relationship between the transmission resources of the first downlink data and the transmission resources of the first physical channel.

39. The method according to claim 38, wherein: The time length corresponding to the transmission resource of the first physical channel is determined based on protocol predefined information or configuration information of the second device; The time interval between the transmission resource of the first physical channel and the transmission resource of the first downlink data is determined based on protocol predefined information or configuration information of the second device.

40. The method according to claim 39, wherein The time interval between the transmission resource of the first physical channel and the transmission resource of the first downlink data is less than or equal to a first threshold, and the first threshold is determined based on protocol predefined information or configuration information of the second device.

41. The method according to any one of claims 38 to 40, characterized in that The transmission resource of the first information is a transmission resource with a fixed time length.

42. The method according to any one of claims 25 to 41, characterized in that There may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data.

43. The method according to any one of claims 25 to 42, characterized in that The first physical channel is a random access channel, and code domain information of the random access channel is based on the first DCI or the second DCI indication, and the second DCI is used to schedule transmission of the first information.

44. The method according to claim 43, wherein The first physical channel is a random access channel, and code domain information of the random access channel is determined based on one or more of the following: identification information of the physical layer of the first device; A cyclic redundancy check (CRC) of the first downlink data; a CRC of the first DCI; indication information in the first DCI; The indication information in the first downlink data.

45. The method according to any one of claims 25 to 44, characterized in that The first information is feedback information of the first DCI and / or the first downlink data.

46. The method according to any one of claims 25 to 45, characterized in that The first information includes one or more of the following information: identification information of the first device; identification information associated with the first DCI; Identification information associated with the first downlink data.

47. The method according to any one of claims 25 to 46, characterized in that The first device is an environmental Internet of Things A-IoT terminal device.

48. The method according to any one of claims 25 to 47, characterized in that The second device is: Network equipment; or An intermediate node, the first device communicates with a network device based on the intermediate node.

49. A communication device, characterized in that The communication device is a first device, and the communication device includes: A receiving unit, configured to receive first downlink control information DCI sent by a second device, where the first DCI is used to schedule transmission of first downlink data; a sending unit, configured to send first information to the second device, where the first information is associated with the first DCI and / or the first downlink data; The first information is carried on a first physical channel, and the first physical channel is a channel carrying uplink data or a random access channel.

50. The communication device according to claim 49, wherein The transmission resource of the first physical channel is determined based on the first indication information sent by the second device.

51. The communication device according to claim 50, characterized in that The first indication information is carried in the first DCI and / or the first downlink data.

52. The communication device according to claim 51, characterized in that: The time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is greater than or equal to a first time interval; and / or The time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is less than or equal to a second time interval.

53. The communication device according to claim 52, characterized in that: The first time interval is determined based on protocol predefined information or configuration information of the second device; and / or The second time interval is determined based on protocol predefined information or configuration information of the second device.

54. The communication device according to claim 50, characterized in that The first indication information is carried in a second DCI, and the second DCI is used to schedule the transmission of the first information.

55. The communication device according to claim 54, characterized in that: The format of the first DCI is the same as the format of the second DCI; or, A format of the first DCI is different from a format of the second DCI.

56. The communication device according to claim 54 or 55, characterized in that The first downlink data is associated with a first index, and the first index is the same as the index carried in the second DCI.

57. The communication device according to claim 56, characterized in that The first index is carried in the first DCI.

58. The communication device according to claim 54, characterized in that The first downlink data satisfies one or more of the following: The first downlink data is the last downlink data received by the first device before sending the first information; and / or, After receiving the first downlink data, the first device does not expect to receive second downlink data sent by the second device before sending the first information, and the second downlink data is not associated with the first information.

59. The communication device according to claim 54, wherein: The first downlink data is the last downlink data received by the first device that meets a first condition, where the first condition includes that the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is greater than or equal to a third time interval.

60. The communication device according to claim 59, wherein The third time interval is determined based on protocol predefined information or configuration information of the second device.

61. The communication device according to any one of claims 49 to 60, characterized in that The first indication information is used to indicate one or more of the following: A start time corresponding to the transmission resource of the first physical channel; The time length corresponding to the transmission resource of the first physical channel.

62. The communication device according to claim 49, wherein The transmission resource of the first physical channel is determined based on one or more of the following: an association relationship between the transmission resources of the first DCI and the transmission resources of the first physical channel; The association relationship between the transmission resources of the first downlink data and the transmission resources of the first physical channel.

63. The communication device according to claim 62, characterized in that: The time length corresponding to the transmission resource of the first physical channel is determined based on protocol predefined information or configuration information of the second device; The time interval between the transmission resource of the first physical channel and the transmission resource of the first downlink data is determined based on protocol predefined information or configuration information of the second device.

64. The communication device according to claim 63, characterized in that The time interval between the transmission resource of the first physical channel and the transmission resource of the first downlink data is less than or equal to a first threshold, and the first threshold is determined based on protocol predefined information or configuration information of the second device.

65. The communication device according to any one of claims 62 to 64, characterized in that The transmission resource of the first information is a transmission resource with a fixed time length.

66. The communication device according to any one of claims 49 to 65, characterized in that There may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data.

67. The communication device according to any one of claims 49 to 66, characterized in that The first physical channel is a random access channel, and code domain information of the random access channel is based on the first DCI or the second DCI indication, and the second DCI is used to schedule transmission of the first information.

68. The communication device according to claim 67, characterized in that The first physical channel is a random access channel, and code domain information of the random access channel is determined based on one or more of the following: identification information of the physical layer of the first device; A cyclic redundancy check (CRC) of the first downlink data; a CRC of the first DCI; indication information in the first DCI; The indication information in the first downlink data.

69. The communication device according to any one of claims 49 to 68, characterized in that The first information is feedback information of the first DCI and / or the first downlink data.

70. The communication device according to any one of claims 49 to 69, characterized in that The first information includes one or more of the following information: identification information of the first device; identification information associated with the first DCI; Identification information associated with the first downlink data.

71. The communication device according to any one of claims 49 to 70, characterized in that The first device is an environmental Internet of Things A-IoT terminal device.

72. The communication device according to any one of claims 49 to 71, characterized in that The second device is: Network equipment; or An intermediate node, the first device communicates with a network device based on the intermediate node.

73. A communication device, characterized in that The communication device is a second device, and the communication device includes: A sending unit, configured to send first downlink control information DCI to a first device, where the first DCI is used to schedule transmission of first downlink data; a receiving unit, configured to receive first information sent by the first device, where the first information is associated with the first DCI and / or the first downlink data; The first information is carried on a first physical channel, and the first physical channel is a channel carrying uplink data or a random access channel.

74. The communication device according to claim 73, characterized in that The transmission resource of the first physical channel is determined based on the first indication information sent by the second device.

75. The communication device according to claim 74, characterized in that The first indication information is carried in the first DCI and / or the first downlink data.

76. The communication device according to claim 75, characterized in that: The time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is greater than or equal to a first time interval; and / or The time interval between the transmission resource of the first downlink data and the transmission resource of the first physical channel is less than or equal to a second time interval.

77. The communication device according to claim 76, characterized in that: The first time interval is determined based on protocol predefined information or configuration information of the second device; and / or The second time interval is determined based on protocol predefined information or configuration information of the second device.

78. The communication device according to claim 74, characterized in that The first indication information is carried in a second DCI, and the second DCI is used to schedule the transmission of the first information.

79. The communication device according to claim 78, characterized in that: The format of the first DCI is the same as the format of the second DCI; or, A format of the first DCI is different from a format of the second DCI.

80. The communication device according to claim 78 or 79, characterized in that The first downlink data is associated with a first index, and the first index is the same as the index carried in the second DCI.

81. The communication device according to claim 80, wherein The first index is carried in the first DCI.

82. The communication device according to claim 78, wherein The first downlink data satisfies one or more of the following: The first downlink data is the last downlink data received by the first device before sending the first information; and / or, After receiving the first downlink data, the first device does not expect to receive second downlink data sent by the second device before sending the first information, and the second downlink data is not associated with the first information.

83. The communication device according to claim 78, wherein The first downlink data is the last downlink data received by the first device that meets a first condition, where the first condition includes that the time interval between the transmission resource of the first downlink data and the transmission resource of the second DCI is greater than or equal to a third time interval.

84. The communication device according to claim 83, characterized in that The third time interval is determined based on protocol predefined information or configuration information of the second device.

85. The communication device according to any one of claims 73 to 84, characterized in that The first indication information is used to indicate one or more of the following: A start time corresponding to the transmission resource of the first physical channel; The time length corresponding to the transmission resource of the first physical channel.

86. The communication device according to claim 73, wherein The transmission resource of the first physical channel is determined based on one or more of the following: an association relationship between the transmission resources of the first DCI and the transmission resources of the first physical channel; The association relationship between the transmission resources of the first downlink data and the transmission resources of the first physical channel.

87. The communication device according to claim 86, characterized in that: The time length corresponding to the transmission resource of the first physical channel is determined based on protocol predefined information or configuration information of the second device; The time interval between the transmission resource of the first physical channel and the transmission resource of the first downlink data is determined based on protocol predefined information or configuration information of the second device.

88. The communication device according to claim 87, characterized in that The time interval between the transmission resource of the first physical channel and the transmission resource of the first downlink data is less than or equal to a first threshold, and the first threshold is determined based on protocol predefined information or configuration information of the second device.

89. The communication device according to any one of claims 86 to 88, characterized in that The transmission resource of the first information is a transmission resource with a fixed time length.

90. The communication device according to any one of claims 73 to 89, characterized in that There may or may not be a time interval between the transmission resource of the first DCI and the transmission resource of the first downlink data.

91. The communication device according to any one of claims 73 to 90, characterized in that The first physical channel is a random access channel, and code domain information of the random access channel is based on the first DCI or the second DCI indication, and the second DCI is used to schedule transmission of the first information.

92. The communication device according to claim 91, characterized in that The first physical channel is a random access channel, and code domain information of the random access channel is determined based on one or more of the following: identification information of the physical layer of the first device; A cyclic redundancy check (CRC) of the first downlink data; a CRC of the first DCI; indication information in the first DCI; The indication information in the first downlink data.

93. The communication device according to any one of claims 73 to 92, characterized in that The first information is feedback information of the first DCI and / or the first downlink data.

94. The communication device according to any one of claims 73 to 93, characterized in that The first information includes one or more of the following information: identification information of the first device; identification information associated with the first DCI; Identification information associated with the first downlink data.

95. The communication device according to any one of claims 73 to 94, characterized in that The first device is an environmental Internet of Things A-IoT terminal device.

96. The communication device according to any one of claims 73 to 95, characterized in that The second device is: Network equipment; or An intermediate node, the first device communicates with a network device based on the intermediate node.

97. A communication device, characterized in that The system comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1 to 24 or 25 to 48.

98. A device, characterized in that The device comprises a processor configured to call a program from a memory to execute the method according to any one of claims 1 to 24 or 25 to 48.

99. A chip, characterized in that The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 1 to 24 or 25 to 48.

100. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1-24 or 25-48.

101. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 24 or 25 to 48.

102. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1-24 or 25-48.

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