Signal transmission method and device, communication equipment, storage medium and program product

Abstract

The invention relates to a signal transmission method and device, communication equipment, a storage medium and a program product. According to the method, a first signal sent by a base station is received, a second signal is sent to environment Internet of Things equipment according to the first signal, and the first signal is used for communication between an intermediate trigger node and the environment Internet of Things equipment; according to the method, the base station communicates with the environment Internet of Things equipment outside the coverage range of the base station through the intermediate node, and the environment Internet of Things equipment based on a low-complexity modulation mode and a low-complexity coding mode can perform long-distance normal communication with the base station through the intermediate node.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a signal transmission method, apparatus, communication equipment, storage medium, and program product. Background Art

[0002] Existing Ambient Internet of Things (A-IoT) devices are widely used in IoT communication networks due to their low power consumption, low cost, and low complexity. However, IoT communication networks inevitably involve communication between A-IoT devices and base stations. However, these characteristics of A-IoT devices limit their communication range. When an A-IoT device is outside the coverage area of a base station, communication between the base station and the A-IoT device becomes difficult. Summary of the Invention

[0003] The embodiments of the present application provide a signal transmission method, apparatus, communication equipment, storage medium and program product. The method can enable a base station to communicate with IoT devices outside its own coverage through an intermediate node, thereby improving the communication distance of the IoT communication system and ensuring normal communication between the base station and the IoT devices to a certain extent.

[0004] In a first aspect, a signal transmission method is provided, the method comprising:

[0005] Receive a first signal sent by a base station; the first signal is used to trigger the intermediate node to communicate with the environmental Internet of Things device;

[0006] A second signal is sent to the environmental Internet of Things device according to the first signal.

[0007] The signal transmission method described in the embodiment of the present application realizes a method for a base station to communicate with environmental Internet of Things devices outside its own coverage through an intermediate node. Since existing environmental Internet of Things devices have the characteristics of low power consumption and low cost, the existing environmental Internet of Things devices implement low-complexity modulation and coding methods. The relay technology in the existing NR system requires the terminal equipment to have complex modulation and coding methods such as precise timing synchronization, blind detection, and orthogonal frequency division multiplexing technology, which makes it difficult for the relay equipment in the existing NR system to meet the communication requirements of the intermediate node with the base station and the environmental Internet of Things devices, and thus makes it difficult for the base station and the environmental Internet of Things devices to communicate over long distances. The above method can realize normal long-distance communication between environmental Internet of Things devices based on low-complexity modulation and coding methods and the base station through intermediate nodes.

[0008] In one embodiment, sending a second signal to the environmental IoT device according to the first signal includes any one of the following:

[0009] sending the first signal as the second signal to the environmental IoT device;

[0010] Sending the second signal to the environmental IoT device according to transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol, and receiving a response signal to the second signal;

[0011] Sending the second signal to the environmental Internet of Things device according to the sending configuration parameters indicated by the first signal, and receiving a response signal to the second signal;

[0012] Determine a sending configuration parameter of a second signal, send the second signal to the environmental Internet of Things device according to the sending configuration parameter, and receive a response signal according to a receiving configuration parameter corresponding to the sending configuration parameter.

[0013] In an embodiment of the present application, the base station can schedule the intermediate node to indicate the response method of the first signal based on the capability of the intermediate node, so that the intermediate node performs different responses, thereby achieving normal communication between the base station and the Internet of Things device.

[0014] In one embodiment, it further includes:

[0015] receiving a response signal sent by the environmental Internet of Things device based on the second signal; wherein the response signal is sent by backscattering or generated according to the second signal;

[0016] A third signal is sent to the base station according to the response signal.

[0017] The signal transmission method described in the embodiments of the present application receives, via an intermediate node, a response signal sent by an environmental IoT device based on a second signal, and transmits a third signal to a base station based on the response signal. In this method, the intermediate node can obtain information required by the base station from the environmental IoT device using the response signal and report it to the base station via the third signal, thereby enabling uplink signal transmission between the environmental IoT device and the base station via the intermediate node.

[0018] In one embodiment, the intermediate node responds to the response signal by backscatter generation, including: sending the response signal as a third signal to the base station; or

[0019] The intermediate node responds to the response signal in a manner generated according to the second signal, including:

[0020] The response signal is received and decoded, and the third signal is sent to the base station according to the third signal sending configuration parameter indicated by the first signal and the response signal.

[0021] In an embodiment of the present application, the base station can schedule the intermediate node to indicate the response method of the response signal based on the capability of the intermediate node, so that the intermediate node performs different responses, thereby realizing normal communication between the base station and the Internet of Things device.

[0022] In one embodiment, the first signal is any one of the following: a query signal, an indication signal, a scheduling signal, and a request signal.

[0023] In one embodiment, the first signal includes a sending configuration parameter of a response signal and a receiving configuration parameter of a second signal.

[0024] In one embodiment, the sending the second signal to the environmental IoT device according to the transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol includes:

[0025] Acquire, according to the transmission configuration parameters configured or pre-configured by the base station or predefined by the protocol, a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal;

[0026] Generate the second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

[0027] In the method described in the embodiment of the present application, the base station can use the intermediate node to instruct the environmental Internet of Things device to implement multiple functions, while matching the low power consumption characteristics of the environmental Internet of Things device and meeting the application requirements of the environmental Internet of Things device in different scenarios.

[0028] In one embodiment, the first signal is carried by any one of the following: DCI signaling, RRC signaling, and MACCE signaling.

[0029] In one embodiment, the first signal includes sending configuration parameters of the third signal.

[0030] In one embodiment, receiving a response signal sent by the environmental IoT device based on the second signal includes:

[0031] Acquiring reception configuration parameters of the response signal according to transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol;

[0032] A response signal to the second signal is received according to the reception configuration parameter of the response signal.

[0033] According to the method described in the embodiment of the present application, the intermediate node can obtain the information required by the base station from the environmental Internet of Things device with the help of the response signal, and report it to the base station through the third signal.

[0034] In one embodiment, the method further comprises:

[0035] Receive the base station configuration or pre-configuration or protocol predefined transmission configuration parameters sent by the base station.

[0036] In one embodiment, the sending the second signal to the environmental Internet of Things device according to the sending configuration parameters indicated by the first signal includes:

[0037] Decoding the first signal to obtain a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal;

[0038] Generate the second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

[0039] The method described in the embodiment of the present application provides a method in which an intermediate node decodes a first signal and transmits a signal according to the instruction of the first signal. In this method, the base station can indicate the signal content and parameters of the communication between the intermediate node and the environmental Internet of Things device. On the one hand, it meets the low power consumption requirements of the communication of the environmental Internet of Things device, and at the same time enables the base station to flexibly schedule the communication between the intermediate node and the environmental Internet of Things device.

[0040] In one embodiment, the first signal includes at least one of the following: a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, a sending configuration parameter of the response signal, a receiving configuration parameter of the response signal, and a sending configuration parameter of the third signal.

[0041] In one embodiment, determining a transmission configuration parameter of the second signal, and sending the second signal to the environmental IoT device according to the transmission configuration parameter, includes:

[0042] Determining a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal;

[0043] Generate the second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

[0044] In the method described in the embodiment of the present application, the intermediate node has the parameter configuration capability, and through the configuration of the intermediate node, it can independently determine the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal to generate and send the second signal. The intermediate node can autonomously configure the parameters according to the instructions of the base station to transmit signals with the environmental Internet of Things device, which can meet the low power consumption and low cost requirements of the environmental Internet of Things device.

[0045] In one embodiment, the first signal includes sending configuration parameters of the third signal.

[0046] In one embodiment, the receiving a response signal according to the receiving configuration parameter corresponding to the sending configuration parameter includes:

[0047] determining reception configuration parameters of the response signal;

[0048] The receiving configuration parameter of the response signal is used as the receiving configuration parameter corresponding to the sending configuration parameter, and the response signal is received according to the receiving configuration parameter.

[0049] In the method described in the embodiment of the present application, the intermediate node has the parameter configuration capability, and the receiving configuration parameters of the response signal can be independently determined through the configuration of the intermediate node. The intermediate node can autonomously configure the parameters according to the instructions of the base station to transmit signals with the environmental Internet of Things device, which can meet the low power consumption and low cost requirements of the environmental Internet of Things device.

[0050] In one embodiment, the method further comprises:

[0051] Sending capability information of the intermediate node to the base station;

[0052] Receive response mode indication information returned by the base station according to the capability information; the response mode indication information is used to indicate a response mode of the intermediate node to the received signal.

[0053] In the embodiment of the present application, the base station can schedule the intermediate node to perform different responses according to the capabilities of the intermediate node, thereby achieving normal communication between the base station and the Internet of Things device.

[0054] In one embodiment, the capability information includes at least one of signal decoding capability, signal sending capability, and parameter configuration capability.

[0055] In one embodiment, the received signal includes the first signal or a response signal.

[0056] In one embodiment, the first signal includes at least one of the following:

[0057] sending configuration parameters of the second signal;

[0058] receiving configuration parameters of the second signal;

[0059] Configuration parameters for sending response signals;

[0060] Receiving configuration parameters of the response signal;

[0061] transmission configuration parameters of the third signal;

[0062] Identification of ambient IoT devices.

[0063] In one embodiment, the first signal is used to trigger at least one of the following:

[0064] The intermediate node sends the second signal;

[0065] The intermediate node receives the response signal;

[0066] The intermediate node sends a third signal.

[0067] In one embodiment, the third signal includes at least one of the following:

[0068] Information of the intermediate node;

[0069] First response information; the first response information is the response information of the environmental Internet of Things device received by the intermediate node;

[0070] First confirmation information; the first confirmation information is used to represent the communication status between the environmental Internet of Things device and the intermediate node;

[0071] Second response information: The second response information is the response information of the intermediate node to the first signal.

[0072] In one embodiment, the second signal includes at least one of the following:

[0073] A function identifier of the second signal; the function identifier of the second signal is used to indicate the function performed by the environmental Internet of Things device;

[0074] Functional parameters; the functional parameters are used to indicate various parameters of the environmental Internet of Things device to perform functions;

[0075] Environmental IoT device identification;

[0076] Environmental IoT device category identification;

[0077] Environmental IoT device group identification;

[0078] Energy collection signal; the energy collection signal is used to instruct the environmental Internet of Things device to collect energy;

[0079] Synchronization signal; the synchronization signal is used to instruct the environmental Internet of Things device to synchronize time and / or frequency with the base station;

[0080] A sending configuration parameter of a response signal; the sending configuration parameter of the response signal is used to instruct the environmental Internet of Things device to send the response signal;

[0081] Intermediate node identification;

[0082] Base station identifier.

[0083] In one embodiment, the second signal is used to instruct the environmental IoT device to perform at least one of the following:

[0084] reporting data to the base station;

[0085] Group indication; the group indication is used to obtain the group identifier of the group to which the environmental Internet of Things device belongs;

[0086] Device access; the device access is used to execute the access process;

[0087] Sending a reference signal;

[0088] Delay indication; the delay indication is used to indicate the waiting delay before sending a response signal;

[0089] Time synchronization and / or frequency synchronization;

[0090] Energy collection; the energy collection is used to collect energy from the second signal;

[0091] Response threshold configuration; the response threshold configuration is used to set the threshold for sending signals;

[0092] Control activation and / or deactivation of functions;

[0093] Parameter adjustment of controlled equipment;

[0094] Backscatter coefficient indication.

[0095] In one embodiment, the response signal includes at least one of the following:

[0096] Environmental IoT device identification;

[0097] Intermediate node identification;

[0098] Base station identification;

[0099] Environmental Internet of Things device information; the environmental Internet of Things device information includes at least one of environmental Internet of Things device capabilities and device types;

[0100] Data to be reported; the data includes at least one of sensor data, equipment identification, cargo information, and operating status information of controlled equipment;

[0101] Second confirmation information: The second confirmation information is used to represent the status of the environmental Internet of Things device executing the function indicated by the base station.

[0102] In one embodiment, the sending configuration parameter of the second signal includes at least one of the following:

[0103] Second signal content indication information; the second signal content indication information is used to indicate the content contained in the second signal;

[0104] Second signal time-frequency resources; the second signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, number of repeated transmissions, and transmission beam of the second signal;

[0105] A second signal encoding mode; the second signal encoding mode includes one of PIE encoding, Miller encoding, Manchester encoding, and FM0 encoding;

[0106] The second signal modulation mode includes one of ASK, FSK, PSK, and QAM.

[0107] According to the method described in the embodiments of the present application, the base station can configure the transmission parameters of the second signal to achieve flexible scheduling of the second signal by the base station or the intermediate node, and through the reasonable configuration of the transmission parameters, the transmission resource utilization rate can be improved and interference can be reduced.

[0108] In one embodiment, the sending configuration parameters of the response signal include at least one of the following:

[0109] Response signal content indication information; the response signal content indication information is used to indicate the content contained in the response signal;

[0110] Response signal time-frequency resources; the response signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the response signal;

[0111] Response signal encoding mode; the response signal encoding mode includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding;

[0112] Response signal modulation mode: the response signal modulation mode includes one of ASK, FSK, PSK, and QAM.

[0113] According to the method described in the embodiments of the present application, the base station can realize flexible scheduling of the response signal by the intermediate node by configuring the sending parameters of the response signal, and can improve the utilization rate of the transmission resources and reduce interference by reasonably configuring the transmission parameters.

[0114] In one embodiment, the reception configuration parameter of the response signal includes at least one of the following:

[0115] Response signal content indication information; the response signal content indication information is used to indicate the content contained in the response signal;

[0116] Response signal time-frequency resources; the response signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the response signal;

[0117] Response signal encoding mode; the response signal encoding mode includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding;

[0118] Response signal modulation mode: the response signal modulation mode includes one of ASK, FSK, PSK, and QAM.

[0119] According to the method described in the embodiments of the present application, the base station can realize flexible scheduling of the response signal by the intermediate node by configuring the receiving parameters of the response signal, and can improve the utilization rate of the transmission resources and reduce interference by reasonably configuring the transmission parameters.

[0120] In one embodiment, the transmission configuration parameter of the third signal includes at least one of the following:

[0121] Third signal content indication information: the third signal content indication information is used to indicate the content contained in the third signal;

[0122] The third signal time-frequency resource includes at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the third signal;

[0123] Modulation coding information of the third signal.

[0124] According to the method described in the embodiments of the present application, the base station can configure the transmission parameters of the third signal to achieve flexible scheduling of the third signal by the base station or the intermediate node, and through the reasonable configuration of the transmission parameters, the transmission resource utilization can be improved and interference can be reduced.

[0125] In a second aspect, a signal transmission method is provided, the method comprising:

[0126] Send a first signal to the intermediate node; the first signal is used to trigger the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

[0127] The method further comprises:

[0128] Receive a third signal returned by the intermediate node; the third signal is generated by the intermediate node according to the response signal sent by the environmental Internet of Things device; the response signal is generated by the environmental Internet of Things device based on the second signal.

[0129] In one embodiment, the method further comprises:

[0130] Determining a sending configuration parameter of the response signal and a receiving configuration parameter of the second signal;

[0131] The sending the first signal to the intermediate node includes:

[0132] The sending configuration parameters of the response signal and the receiving configuration parameters of the second signal are carried in the first signal and sent to the intermediate node.

[0133] In one embodiment, the method further comprises:

[0134] determining a transmission configuration parameter of a third signal;

[0135] The sending the first signal to the intermediate node includes:

[0136] The sending configuration parameters of the third signal are carried in the first signal and sent to the intermediate node.

[0137] In one embodiment, the method further comprises:

[0138] Determining a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, a sending configuration parameter of the response signal, a receiving configuration parameter of the response signal, and a sending configuration parameter of the third signal;

[0139] The sending the first signal to the intermediate node includes:

[0140] The sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, the sending configuration parameters of the response signal, the receiving configuration parameters of the response signal and the sending configuration parameters of the third signal are carried in the first signal and sent to the intermediate node.

[0141] In a third aspect, a signal transmission method is provided, the method comprising:

[0142] A second signal sent by an intermediate node is received; the second signal is generated by the intermediate node based on the first signal sent by the base station.

[0143] In one embodiment, the method further comprises:

[0144] generating a response signal according to the second signal;

[0145] The response signal is sent to the intermediate node; the response signal is used to trigger the intermediate node to generate a third signal according to the response signal, and send the third signal to the base station.

[0146] In one embodiment, generating a response signal according to the second signal includes:

[0147] The second signal is backscattered according to the sending configuration parameter of the response signal in the second signal to generate the response signal.

[0148] In one embodiment, generating a response signal according to the second signal includes:

[0149] The response signal is independently generated according to the sending configuration parameters of the response signal in the second signal.

[0150] In a fourth aspect, a signal transmission device is provided, the device comprising:

[0151] A first receiving module is configured to receive a first signal sent by a base station; the first signal is used to trigger the intermediate node to communicate with the environmental IoT device;

[0152] The first sending module is used to send a second signal to the environmental Internet of Things device according to the first signal.

[0153] In a fifth aspect, a signal transmission device is provided, the device comprising:

[0154] The third sending module is used to send a first signal to the intermediate node; the first signal is used to instruct the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

[0155] In a sixth aspect, a signal transmission device is provided, the device comprising:

[0156] The fourth receiving module is used to receive a second signal sent by the intermediate node; the second signal is generated by the intermediate node based on the first signal sent by the base station.

[0157] In a seventh aspect, a communication device is provided, the communication device comprising: a transmitter and a receiver;

[0158] The receiver is configured to receive a first signal sent by a base station; the first signal is configured to trigger communication between the intermediate node and an environmental IoT device;

[0159] The transmitter is used to send a second signal to the environmental Internet of Things device according to the first signal.

[0160] In an eighth aspect, a communication device is provided, the communication device comprising: a transmitter;

[0161] The transmitter is used to send a first signal to the intermediate node; the first signal is used to instruct the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

[0162] According to a ninth aspect, a communication device is provided, comprising: a receiver;

[0163] The receiver is configured to receive a second signal sent by an intermediate node; the second signal is generated by the intermediate node based on the first signal sent by the base station.

[0164] In a tenth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the method described in the first aspect is implemented.

[0165] In the eleventh aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the method described in the second aspect is implemented.

[0166] In a twelfth aspect, a computer-readable storage medium is provided on which a computer program is stored, and when the computer program is executed by a processor, the method described in the third aspect is implemented.

[0167] In the thirteenth aspect, a computer program product is provided, including a computer program, characterized in that when the computer program is executed by a processor, it implements the method described in the first aspect provided in the embodiment of the present application.

[0168] In the fourteenth aspect, a computer program product is provided, including a computer program, characterized in that when the computer program is executed by a processor, it implements the method described in the second aspect provided in the embodiment of the present application.

[0169] In the fifteenth aspect, a computer program product is provided, including a computer program, characterized in that when the computer program is executed by a processor, it implements the method described in the third aspect provided in the embodiment of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0170] Figure 1 is a schematic structural diagram of a signal transmission system in one embodiment;

[0171] Figure 2 1 is a flow chart of a signal transmission method according to an embodiment;

[0172] Figure 3 is a flow chart of a signal transmission method according to another embodiment;

[0173] Figure 4 is a flow chart of a signal transmission method according to another embodiment;

[0174] Figure 5 is a flow chart of a signal transmission method according to another embodiment;

[0175] Figure 6 is a flow chart of a signal transmission method according to another embodiment;

[0176] Figure 7 is a flow chart of a signal transmission method according to another embodiment;

[0177] Figure 8 is a flow chart of a signal transmission method according to another embodiment;

[0178] Figure 9 is a flow chart of a signal transmission method according to another embodiment;

[0179] Figure 10 is a flow chart of a signal transmission method according to another embodiment;

[0180] Figure 11 is a flow chart of a signal transmission method according to another embodiment;

[0181] Figure 12 is a flow chart of a signal transmission method according to another embodiment;

[0182] Figure 13 is a flow chart of a signal transmission method according to another embodiment;

[0183] Figure 14 is a flow chart of a signal transmission method according to another embodiment;

[0184] Figure 15 is a flow chart of a signal transmission method according to another embodiment;

[0185] Figure 16 is a flow chart of a signal transmission method according to another embodiment;

[0186] Figure 17 is a flow chart of a signal transmission method according to another embodiment;

[0187] Figure 18 is a flow chart of a signal transmission method according to another embodiment;

[0188] Figure 19 is a flow chart of a signal transmission method according to another embodiment;

[0189] Figure 20 is a flow chart of a signal transmission method according to another embodiment;

[0190] Figure 21 is a flow chart of a signal transmission method according to another embodiment;

[0191] Figure 22 is a flow chart of a signal transmission method according to another embodiment;

[0192] Figure 23 is a flow chart of a signal transmission method according to another embodiment;

[0193] Figure 24 is a flow chart of a signal transmission method according to another embodiment;

[0194] Figure 25 is a flow chart of a signal transmission method according to another embodiment;

[0195] Figure 26 is a schematic structural diagram of a signal transmission device in another embodiment;

[0196] Figure 27 is a schematic structural diagram of a signal transmission device in another embodiment;

[0197] Figure 28 is a schematic structural diagram of a signal transmission device in another embodiment;

[0198] Figure 29 is a schematic structural diagram of a communication device in one embodiment;

[0199] Figure 30 is a schematic structural diagram of a communication device in another embodiment;

[0200] Figure 31 FIG. 1 is a schematic structural diagram of a communication device in another embodiment. DETAILED DESCRIPTION

[0201] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0202] Figure 1 Schematic diagram of a signal transmission system of a signal transmission method provided in an embodiment of the present application. Figure 1As shown, the signal transmission system includes an intermediate node 100, at least one environmental IoT device 200, and a base station 300. Information is transmitted between the intermediate node 100 and the environmental IoT device 200 via a network, and information is transmitted between the intermediate node 100 and the base station 300 via a network.

[0203] The intermediate node 100 may be a relay device with a signal transparent transmission function or a relay device with a signal processing function. The ambient Internet of Things device 200 may be an ambient Internet of Things (A-IoT) device. The 3rd Generation Partnership Project (3GPP) categorizes A-IoT devices into the following three categories based on whether they have energy storage capabilities and independent signal generation capabilities: 1. Device A: No energy storage capabilities, no independent signal generation capabilities, uses backscattering for signal transmission, and has a target power consumption of ≤1μW or ≤10μW for data transmission and reception. 2. Device B: Has energy storage capabilities, no independent signal generation capabilities, uses backscattering for signal transmission, and the stored energy can be used to amplify the power of the backscattered signal. The target power consumption for data transmission and reception is between devices A and B. 3. Device C: Has energy storage capabilities, has independent signal generation capabilities, uses radio frequency devices for signal transmission, and has a target power consumption of ≤1mW or ≤10mW for data transmission and reception. The target coverage distance of A-IoT devices is: a maximum indoor distance of 10-50 meters and a maximum outdoor distance of 50-500 meters. Base station 300 can be a base station (Base Transceiver Station, BTS) in Global System of Mobilecommunication (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a base station in a 5G network, etc., without limitation herein.

[0204] Traditionally, Internet of Things (IoT) devices are powered by batteries, requiring regular recharging or replacement, resulting in significant human and material costs. Therefore, to further reduce the cost of IoT devices and expand their application, 3GPP has defined a new device type: "A-IoT." Ambient IoT devices (A-IoT) have limited or no energy storage capacity and instead rely on environmental sources such as wind, light, pressure, and wireless signals for energy. These devices are characterized by low energy consumption, low cost, and low complexity. These characteristics limit the communication range of A-IoT devices. When A-IoT devices are outside the coverage area of a base station, communication between the base station and these devices is only possible with the help of an intermediate node. Existing communication technologies between intermediate nodes and end devices require the end devices to possess precise timing synchronization, blind detection, orthogonal frequency division multiplexing (OFDM) modulation and demodulation, and active signaling capabilities. However, due to power consumption, cost, and complexity constraints, A-IoT devices may not be equipped with the complex components required to support these capabilities. Furthermore, the low-complexity modulation schemes (such as OOK, ASK, and FSK) and coding schemes (such as PIE, Manchester, NRZ, and FM0) that A-IoT devices can implement are also unsupported by existing relay technologies in NR systems. Therefore, existing intermediate node devices and related communication technologies cannot simultaneously meet the communication requirements between intermediate nodes, base stations, and A-IoT devices.

[0205] Further analysis reveals that, for downlink transmission from existing relay devices to UEs, whether the relay performs direct forwarding or decoding-based forwarding, control or data information is transmitted via the PDCCH or PDSCH. The FFT of the received signal, blind detection of the PDCCH, and demodulation and decoding of the PDSCH all require the UE to possess complex receiving components, such as high-performance RF receivers, baseband processing components, local oscillators, and precise time-frequency offset synchronization modules. However, due to power consumption and low cost constraints, A-IoT devices cannot be equipped with these complex components, making it impossible to receive and process PDCCH and PDSCH. On the other hand, uplink transmission from the UE to the relay device requires the PUCCH or PUSCH to transmit control or data information. Signal transmission on both channels requires the UE to first generate a frequency-domain signal, which is then modulated using OFDM through IFFT. A-IoT device types A and B lack the ability to independently generate and transmit signals. Furthermore, A-IoT device type C can only support a maximum power consumption of 1mW or 10mW, making it difficult to support complex IFFT operations. In short, A-IoT devices cannot implement the existing PUCCH or PUSCH transmission of the NR protocol.

[0206] In response to the above problems, an embodiment of the present application provides a signal transmission method, which responds to a first signal sent by a base station through an intermediate node, and obtains a second signal from the first signal, receives a response signal, and sends at least one configuration parameter of a third signal, or directly forwards the first signal receivable by the environmental Internet of Things device; sends a second signal to the environmental Internet of Things device; receives a response signal sent by the environmental Internet of Things device; obtains environmental Internet of Things device information from the response signal and sends a third signal to the base station, or directly forwards the response signal as the third signal. With the help of this solution, the base station can communicate with environmental Internet of Things devices A-IoT devices outside its own coverage range through the intermediate node, thereby improving the communication distance between the base station and the A-IoT device, and to a certain extent, ensuring normal communication between the base station and the A-IoT device.

[0207] It should be noted that the beneficial effects or technical problems solved by the embodiments of the present application are not limited to this one, but may also include other implicit or related problems. For details, please refer to the description of the following embodiments.

[0208] Before introducing the specific embodiments of the present invention, the professional terms involved in the present invention are explained:

[0209] 3rd Generation Partnership Project: 3GPP;

[0210] Fifth Generation Mobile Communication Technology: 5th Generation Mobile Communication Technology, referred to as 5G;

[0211] Ambient-Internet of Things (A-IoT)

[0212] Amplitude-shift keying: Amplitude-shift keying, referred to as ASK;

[0213] Control element: Control Element, referred to as CE;

[0214] Downlink Control Indication: Downlink Control Indication, referred to as DCI;

[0215] Distributed Unit: Distributed Unit, referred to as DU;

[0216] Fast Fourier Transform: Fast Fourier Transform, referred to as FFT;

[0217] Frequency-shift keying: Frequency-shift keying, referred to as FSK;

[0218] Global System for Mobile Communications: Global System for Mobile Communications, referred to as GSM;

[0219] Integrated Access Backhaul: Integrated Access Backhaul, referred to as IAB;

[0220] Inverse Fast Fourier Transform: Inverse Fast Fourier Transform, referred to as IFFT;

[0221] Internet of Things: Internet of Things, referred to as IoT;

[0222] Long Term Evolution: Long Term Evolution, referred to as LTE;

[0223] Media Access Control: Medium Access Control, referred to as MAC;

[0224] Modulation and Coding Scheme: Modulation and Coding Scheme, referred to as MCS;

[0225] Mobile terminal: Mobile-Termination, referred to as MT;

[0226] New Radio: New Radio, referred to as NR;

[0227] Non-Return to Zero: Non-Return to Zero, referred to as NRZ;

[0228] Orthogonal Frequency Division Multiplexing (OFDM)

[0229] Physical Downlink Control Channel: Physical Downlink Control Channel, referred to as PDCCH;

[0230] Physical Downlink Shared Channel: Physical Downlink Shared Channel, referred to as PDSCH;

[0231] Pulse width encoding: Pulse interval encoding, referred to as PIE;

[0232] Phase-shift keying: Phase-shift keying, referred to as PSK;

[0233] Physical Uplink Control Channel: Physical Uplink Control Channel, referred to as PUCCH;

[0234] Physical Uplink Shared Channel: Physical Uplink Shared Channel, referred to as PUSCH;

[0235] Quadrature Amplitude Modulation: Quadrature Amplitude Modulation, referred to as QAM;

[0236] Radio Resource Control: Radio Resource Control, referred to as RRC;

[0237] User Equipment: User Equipment, referred to as UE.

[0238] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0239] In one embodiment, Figure 2 As shown, a signal transmission method is provided, which is applied to Figure 1 The following steps are taken as an example to illustrate the intermediate node in the example:

[0240] S201, receiving a first signal sent by a base station; the first signal is used to trigger the intermediate node to communicate with the environmental Internet of Things device.

[0241] The first signal is used to instruct at least one of the following: instructing the intermediate node to transmit the second signal; instructing the intermediate node to receive the response signal; and instructing the intermediate node to transmit the third signal. The first signal includes: second signal reception configuration parameters and response signal transmission configuration parameters. Optionally, the first signal also includes at least one of the following: second signal transmission configuration parameters, response signal reception configuration parameters, and third signal transmission configuration parameters. Optionally, the first signal also includes an identifier of the ambient IoT device. Optionally, the first signal also includes conflict resolution indication information. The conflict resolution indication information is used by the intermediate node to handle conflicts between response signals transmitted by multiple ambient IoT devices (A-IoT devices), for example, by directly discarding the conflicting response signal, adjusting the transmission power or beamwidth of the second signal, or reporting conflict information to the base station. The second signal reception configuration parameters are used by the ambient IoT device to receive the second signal; the second signal transmission configuration parameters are used by the intermediate node to transmit the second signal; the response signal transmission configuration parameters are used by the ambient IoT device to transmit the response signal; the response signal reception configuration parameters are used by the intermediate node to receive the response signal; and the third signal transmission configuration parameters are used by the intermediate node to transmit the third signal. Optionally, the first signal may be a query signal, an indication signal, a scheduling signal, a request signal, etc.; optionally, the first signal may also be a DCI carried by a PDCCH, or an RRC signaling, a MAC CE, etc. carried by a PDSCH.

[0242] Optionally, the manner in which the intermediate node sends the second signal to the environmental Internet of Things device based on the first signal includes any one of the following: sending the first signal as the second signal to the environmental Internet of Things device; sending the second signal to the environmental Internet of Things device according to the transmission configuration parameters configured or pre-configured by the base station or predefined by the protocol, and receiving a response signal to the second signal; sending the second signal to the environmental Internet of Things device according to the transmission configuration parameters indicated by the first signal, and receiving a response signal to the second signal; determining the transmission configuration parameters of the second signal, sending the second signal to the environmental Internet of Things device according to the transmission configuration parameters, and receiving a response signal according to the reception configuration parameters corresponding to the transmission configuration parameters.

[0243] In an embodiment of the present application, the base station may predetermine the transmission configuration parameters of the second signal, the reception configuration parameters of the second signal, the transmission configuration parameters of the response signal, the reception configuration parameters of the response signal, the transmission configuration parameters of the third signal, and the reception configuration parameters of the third signal. Then, when the base station is about to communicate with the environmental IoT device, the base station may extract corresponding partial parameters from the predetermined multiple parameters based on the capabilities or characteristics of the intermediate node and carry them in the first signal to send to the intermediate node, so that the intermediate node can perform subsequent operations to communicate with the environmental IoT device based on the triggering of the first signal.

[0244] S202: Send a second signal to the environmental Internet of Things device according to the first signal.

[0245] The second signal is a signal receivable by the ambient IoT device and includes at least one of the following: a function identifier of the second signal, a function parameter, an ambient IoT device identifier, an ambient IoT device category identifier, an ambient IoT device group identifier, an energy collection signal, a synchronization signal, a response signal transmission configuration parameter, an intermediate node identifier, and a base station identifier.

[0246] Among them, the function identifier of the above-mentioned second signal is used to indicate the function executed by the environmental Internet of Things device; the above-mentioned function parameters are used to indicate the various parameters of the function executed by the environmental Internet of Things device; the above-mentioned energy collection signal is used to instruct the environmental Internet of Things device to collect energy; the above-mentioned synchronization signal is used to instruct the environmental Internet of Things device to perform time and / or frequency synchronization with the base station; the sending configuration parameters of the above-mentioned response signal are used to instruct the environmental Internet of Things device to send a response signal; the above-mentioned base station identification bit triggers the intermediate node to send the second signal of the base station identification.

[0247] Optionally, the second signal is used to instruct the environmental Internet of Things device to perform at least one of the following: reporting data to the base station, grouping indication, device access, sending reference signals, delay indication, time synchronization and / or frequency synchronization, energy collection, response threshold configuration, activation and / or deactivation of control functions, parameter adjustment of controlled devices, and backscatter coefficient indication. The above-mentioned data includes the sensor data of the environmental Internet of Things device, the device identification of the environmental Internet of Things device, the cargo information of the environmental Internet of Things device, and the operating status information of the environmental Internet of Things device; the above-mentioned group indication is used to obtain the group identification of the group to which the environmental Internet of Things device belongs; the above-mentioned device access is used to execute the access process, for example, sending an access request, reporting the device identification; the above-mentioned reference signal is used to send a reference signal, for example, sending a positioning reference signal, etc.; the above-mentioned delay indication is used to indicate the waiting delay value required before sending a response signal; the above-mentioned energy collection is used to collect energy from the second signal; the above-mentioned response threshold configuration is used to set the threshold for sending a signal, where the signal is a sending response signal or an active sending signal, for example, a sensor measurement value threshold; the activation and / or deactivation of the above-mentioned control function is used to turn on or off the control function of other devices; the above-mentioned parameter adjustment of the controlled device is used to modify the operating parameters of the controlled device, such as the working cycle, where the controlled device is a device controlled by the environmental Internet of Things device; the above-mentioned backscatter coefficient indication is used to indicate the backscatter coefficient used by the environmental Internet of Things device when sending a response signal in a backscattering manner.

[0248] Optionally, the second signal may be a query signal, an indication signal, a scheduling signal, a request signal, etc.

[0249] In an embodiment of the present application, when the intermediate node receives a first signal, if the signal processing capability of the intermediate node is the capability of transparently transmitting the signal, the intermediate node can directly transparently transmit the first signal as the second signal to the environmental Internet of Things device. In this case, the first signal is a signal that can be received by the environmental Internet of Things device; if the signal processing capability of the intermediate node is to decode the signal to generate a second signal, the generated second signal can be sent to the environmental Internet of Things device. In this case, the second signal is a signal that can be received by the environmental Internet of Things device; if the signal processing capability of the intermediate node is to autonomously confirm the generation of the second signal, the generated second signal can be sent to the environmental Internet of Things device. In this case, the second signal is a signal that can be received by the environmental Internet of Things device; if the signal processing capability of the intermediate node is to generate a second signal according to parameters predefined by the protocol or preconfigured by the base station, the generated second signal can be sent to the environmental Internet of Things device. In this case, the second signal is a signal that can be received by the environmental Internet of Things device.

[0250] The signal transmission method described in the embodiment of the present application receives a first signal sent by a base station through an intermediate node, and sends a second signal to an environmental Internet of Things device based on the first signal. The first signal is used to trigger the intermediate node to transmit signals with the environmental Internet of Things device, and the second signal is a signal that can be received by the environmental Internet of Things device. The above method realizes a method for a base station to communicate with an environmental Internet of Things device outside its own coverage through an intermediate node. Since the existing environmental Internet of Things devices have the characteristics of low power consumption and low cost, the existing environmental Internet of Things devices implement low-complexity modulation and coding methods. The relay technology in the existing NR system requires the terminal device to have complex modulation and coding methods such as precise timing synchronization, blind detection, and orthogonal frequency division multiplexing technology, which makes it difficult for the relay device in the existing NR system to meet the communication requirements of the intermediate node with the base station and the environmental Internet of Things device, and further makes it difficult for the base station and the environmental Internet of Things device to communicate over long distances. The above method can realize normal long-distance communication between the environmental Internet of Things device based on low-complexity modulation and coding methods and the base station through the intermediate node.

[0251] In one embodiment, the intermediate node may send the second signal to the environmental Internet of Things device in any of the following ways: sending the first signal as the second signal to the environmental Internet of Things device; sending the second signal to the environmental Internet of Things device according to the transmission configuration parameters configured or pre-configured by the base station or predefined by the protocol, and receiving a response signal to the second signal; sending the second signal to the environmental Internet of Things device according to the transmission configuration parameters indicated by the first signal, and receiving a response signal to the second signal; determining the transmission configuration parameters of the second signal, sending the second signal to the environmental Internet of Things device according to the transmission configuration parameters, and receiving a response signal according to the reception configuration parameters corresponding to the transmission configuration parameters.

[0252] In one embodiment, the environmental Internet of Things device can also transmit signals to the base station through the intermediate node. Based on this, the present application also provides a signal transmission method. Figure 2 Based on the signal transmission method described in the embodiment, Figure 3 As shown, the method includes:

[0253] S203: Receive a response signal sent by the environmental Internet of Things device based on the second signal.

[0254] The response signal is sent via backscatter or generated based on the second signal. The response signal includes at least one of the following: an environmental IoT device identifier, an intermediate node identifier, a base station identifier, environmental IoT device information, data to be reported, and second confirmation information. The intermediate node identifier indicates the identifier of the intermediate node that sent the second signal; the base station identifier indicates the identifier of the base station that sent the first signal; the environmental IoT device information includes at least one of environmental IoT device capabilities and device type; the data to be reported includes at least one of sensor data, device identifier, cargo information, and operating status information of the controlled device; and the second confirmation information is used to represent the status of the environmental IoT device executing the function indicated by the base station, for example, confirmation information of successfully executing the function indicated in the query signal or confirmation information of successfully receiving the query signal. The response signal is sent via backscatter or independently generated. The response signal is sent via backscatter or independently generated.

[0255] Optionally, the intermediate node responds to the response signal by backscattering generation, including: sending the response signal as a third signal to the base station; or, the intermediate node responds to the response signal by generating according to the second signal, including: receiving and decoding the response signal, sending the configuration parameters and the response signal according to the third signal indicated by the first signal, and sending the third signal to the base station.

[0256] In an embodiment of the present application, after receiving the second signal, if the environmental IoT device does not have the ability to independently generate a signal, it backscatters the second signal to generate a response signal and sends it to the intermediate node; if the environmental IoT device has the ability to independently generate a signal, it directly generates the response signal independently and sends it to the intermediate node. Optionally, if the environmental IoT device has both the ability to backscatter and the ability to independently generate a signal, the environmental IoT device can determine the transmission method of the response signal based on the instruction of the second signal, and send the generated response signal to the intermediate node according to the transmission method of the response signal, so that the intermediate node can receive the response signal.

[0257] It should be noted that backscatter communication typically involves a reader with RF capabilities and a tag A device without RF capabilities. The reader sends an RF signal to the tag. The RF signal's electromagnetic wave reaches the tag's antenna surface, forming a reflected echo, the backscattered signal. By varying the antenna's load impedance, the tag can control the backscattered signal's amplitude, waveform, and frequency, thereby modulating information into the backscattered signal. The relationship between the reflected signal and the excitation signal can be expressed as:

[0258] S out =S in ×T i (1);

[0259] Among them, S out is the reflected signal, S in is the excitation signal, is the reflection coefficient, Z i is the load impedance, Z a is the antenna impedance. T i = 0, the energy of the excitation signal is completely absorbed by the tag antenna; T i When ≠0, the excitation signal is partially absorbed and partially reflected. Different modulation symbols correspond to different backscatter coefficients. The reader receives and reads the backscattered signal from the tag, thereby obtaining the information transmitted by the tag. In A-IoT communication scenarios, the tag is the A-IoT device, and the reader can be a base station, an existing NR terminal, or other similar devices.

[0260] S204: Send a third signal to the base station according to the response signal.

[0261] Among them, the third signal includes at least one of the following: information of the intermediate node, first response information, first confirmation information, and second response information; the above-mentioned first response information is the response information of the environmental Internet of Things device received by the intermediate node, for example, the response information of the environmental Internet of Things device includes such as the environment; the above-mentioned first confirmation information is used to characterize the communication status between the environmental Internet of Things device and the intermediate node, for example, the base station confirms whether the environmental Internet of Things device communicates normally with the intermediate node; the above-mentioned second response information is the response information of the intermediate node to the first signal, for example, it includes the information that the first signal may indicate to be uploaded, the information of the intermediate node, the information of the environmental Internet of Things device, etc. The information of the environmental Internet of Things device may include such as device identification, signal sending capability, receiver architecture, etc.

[0262] In an embodiment of the present application, after the intermediate node receives the response signal, if the environmental Internet of Things device does not have the ability to independently generate a signal, the second signal is backscattered to generate a response signal and sent to the intermediate node; if the environmental Internet of Things device has the ability to independently generate a signal, the response signal is directly generated independently and sent to the intermediate node.

[0263] In an embodiment of the present application, when the intermediate node receives a response signal, if the signal processing capability of the intermediate node is the transparent signal transmission capability, the intermediate node can directly transmit the response signal as the third signal to the base station; if the signal processing capability of the intermediate node is to decode the response signal and the first signal to generate a third signal, the generated third signal can be sent to the base station.

[0264] The signal transmission method described in the embodiments of the present application receives, via an intermediate node, a response signal sent by an environmental IoT device based on a second signal, and transmits a third signal to a base station based on the response signal. In this method, the intermediate node can obtain information required by the base station from the environmental IoT device using the response signal and report it to the base station via the third signal, thereby enabling uplink signal transmission between the environmental IoT device and the base station via the intermediate node.

[0265] In one embodiment, a signal transmission method for transparently transmitting signals through an intermediate node is also provided, namely, a first signal transmission scheme. In this scheme, when the intermediate node executes step S202 of "sending a second signal to an ambient IoT device based on the first signal," the intermediate node specifically performs the following steps: transmitting the first signal as the second signal to the ambient IoT device. During this signal transmission process, the first signal includes the reception configuration parameters for the second signal and the transmission configuration parameters for the response signal; the first signal can be any of the following types of signals: a query signal, an indication signal, a scheduling signal, and a request signal.

[0266] In an embodiment of the present application, the base station can predetermine the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, the sending configuration parameters of the response signal, the receiving configuration parameters of the response signal, the sending configuration parameters of the third signal, and the receiving configuration parameters of the third signal. Then, when the base station is in advance communicating with the environmental Internet of Things device and the intermediate node has the ability to transparently transmit signals, the base station can extract the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal from the predetermined multiple parameters, and carry the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal in the first signal to the intermediate node, so that the intermediate node can transparently transmit the first signal to the environmental Internet of Things device, so that the environmental Internet of Things device can receive the second signal based on the receiving configuration parameters of the second signal, and send the response signal according to the sending configuration parameters of the response signal. The above-mentioned first signal and second signal are both signals that can be received by the environmental Internet of Things device, and the receivable signal here refers to a signal that can be demodulated and / or decoded.

[0267] The method described in the embodiment of the present application provides a signal transmission method in which an intermediate node transparently transmits a first signal, and in this method, the base station can instruct the environmental Internet of Things device to receive and send the content and parameters of the signal, thereby meeting the low power consumption requirements of the environmental Internet of Things device communication, thereby improving the communication distance between the base station and the environmental Internet of Things device.

[0268] In one embodiment, a signal transmission method for an intermediate node to transparently transmit a signal is also provided, that is, when the intermediate node executes step S204 "sending a third signal to the base station according to the response signal", the specific execution step is: sending the response signal as the third signal to the base station.

[0269] In the embodiment of the present application, when the intermediate node receives a response signal, in this scenario, since the intermediate node has the signal processing capability of transparently transmitting signals, the intermediate node can directly transparently transmit the response signal as the third signal to the base station.

[0270] The method described in the embodiment of the present application provides a signal transmission method for an intermediate node to transparently transmit a response signal, and in this method, the base station can instruct the environmental Internet of Things device to receive and send the content and parameters of the signal, thereby meeting the low power consumption requirements of the environmental Internet of Things device communication, thereby improving the communication distance between the base station and the environmental Internet of Things device.

[0271] Based on the first signal transmission solution described in the above embodiment, Figure 4 As shown, the method includes:

[0272] S301: A base station generates a first signal according to a reception configuration parameter of a second signal and a transmission configuration parameter of a response signal.

[0273] S302: The base station sends a first signal to the intermediate node.

[0274] S303: The intermediate node forwards the first signal to the environmental Internet of Things device.

[0275] S304, the environmental Internet of Things device obtains a receiving configuration parameter of the second signal from the first signal to receive the second signal, and obtains a sending configuration parameter of the response signal from the first signal to generate a response signal.

[0276] S305, the environmental IoT device sends a response signal to the intermediate node.

[0277] S306: The intermediate node forwards the response signal to the base station.

[0278] In one embodiment, a method for an intermediate node to transmit a signal is further provided, namely, a second signal transmission scheme. In this scheme, when the intermediate node executes step S202 "sending a second signal to the environmental IoT device according to the first signal", Figure 5As shown, the specific steps are:

[0279] S401: Generate a second signal according to preset configuration parameters and a first signal.

[0280] S402: Send the second signal to the environmental IoT device.

[0281] Among them, the preset configuration parameters include at least one of the parameters determined according to preset rules, parameters determined by preset protocols, and parameters pre-configured by base stations; the preset rules include rules determined by preset protocols and rules preset by base stations. Optionally, the rules determined by the preset protocols are rules formulated by the 3GPP protocol. After the rules are formulated, hardware manufacturers will produce hardware equipment according to the protocol. Therefore, the intermediate node will perform signal processing according to the rules that have been implemented in the hardware device according to the protocol, and the hardware device here can refer to the intermediate node. Optionally, base station pre-configuration means that the base station sends signaling to the intermediate node in advance and informs the intermediate node of the relevant parameter configuration. Optionally, the above-mentioned preset configuration parameters can be sent by the base station to the intermediate node in advance through signaling or other means. Therefore, Figure 4 The illustrated embodiment further includes the step of: the intermediate node receiving preset configuration parameters sent by the base station. In the above-mentioned signal transmission scenario, the type or form of the first signal can be any of the following: DCI signaling, RRC signaling, or MAC CE signaling. The first signal includes the transmission configuration parameters of the third signal.

[0282] In an embodiment of the present application, when the intermediate node receives the first signal, if the signal processing capability of the intermediate node is to generate a second signal according to the parameters predefined by the protocol or preconfigured by the base station, the second signal is directly generated according to the preset configuration parameters predefined by the protocol or preconfigured by the base station, and the second signal is sent to the environmental Internet of Things device.

[0283] The method described in the embodiment of the present application provides a method for an intermediate node to decode a first signal and transmit a signal according to parameters predefined by a protocol or preconfigured by a base station. In this method, the base station can indicate the signal content and parameters for communication between the intermediate node and the environmental Internet of Things device. On the one hand, it meets the low power consumption requirements of the communication of the environmental Internet of Things device, and at the same time enables the base station to flexibly schedule the communication between the intermediate node and the environmental Internet of Things device.

[0284] Furthermore, an implementation method of generating the second signal is provided, such as Figure 6 As shown, the implementation includes:

[0285] S501: Acquire a sending configuration parameter of a second signal, a receiving configuration parameter of a second signal, and a sending configuration parameter of a response signal according to transmission configuration parameters configured or preconfigured by a base station or predefined by a protocol.

[0286] The transmission configuration parameters of the second signal include at least one of the following: second signal content indication information, second signal time-frequency resources, second signal encoding mode, and second signal modulation mode; the second signal content indication information is used to indicate the content contained in the second signal; the second signal time-frequency resources include at least one of the second signal's time offset, time length, frequency offset, transmission bandwidth, transmission period, number of repeated transmissions, and transmission beam; the second signal encoding mode includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding; the second signal modulation mode includes one of ASK, FSK, PSK, and QAM. The second signal content indication information is used to indicate what content is contained in the second signal.

[0287] The reception configuration parameters of the second signal include at least one of the following: second signal content indication information, second signal time-frequency resources, second signal encoding mode, and second signal modulation mode. The second signal content indication information is used to indicate the content contained in the second signal. The second signal time-frequency resources include at least one of the second signal's time offset, time length, frequency offset, transmission bandwidth, transmission period, number of repeated transmissions, and transmission beam. The second signal encoding mode includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding. The second signal modulation mode includes one of ASK, FSK, PSK, and QAM. The second signal content indication information indicates the content contained in the second signal.

[0288] The sending configuration parameters of the response signal include at least one of the following: response signal content indication information, response signal time and frequency resources, response signal encoding method, and response signal modulation method; the above-mentioned response signal content indication information is used to indicate the content contained in the response signal; the above-mentioned response signal time and frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the response signal; the above-mentioned response signal encoding method includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding; the above-mentioned response signal modulation method includes one of ASK, FSK, PSK, and QAM.

[0289] In an embodiment of the present application, when the intermediate node receives the first signal, if the signal processing capability of the intermediate node is to generate a second signal according to the transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal are directly obtained according to the transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol, so as to indicate that the intermediate node can determine the method of sending the second signal based on the sending configuration parameters of the second signal and send the second signal to the environmental Internet of Things device; to indicate that the environmental Internet of Things device can determine the method of receiving the second signal based on the receiving configuration parameters of the second signal and receive the second signal; to indicate that the environmental Internet of Things device can determine the method of generating and sending the response signal based on the sending configuration parameters of the response signal, and send the generated response signal to the intermediate node.

[0290] S502: Generate a second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

[0291] In an embodiment of the present application, when the intermediate node obtains the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal based on the above steps, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal can be carried in the first signal to generate a second signal, and the second signal can be sent to the environmental Internet of Things device.

[0292] In the method described in the embodiment of the present application, the base station can use the intermediate node to instruct the environmental Internet of Things device to implement multiple functions, while matching the low power consumption characteristics of the environmental Internet of Things device and meeting the application requirements of the environmental Internet of Things device in different scenarios.

[0293] In one embodiment, a method for receiving a response signal is also provided, such as Figure 7 As shown, the specific steps are:

[0294] S601: Acquire reception configuration parameters of a response signal according to transmission configuration parameters configured or pre-configured by a base station or pre-defined by a protocol.

[0295] Among them, the receiving configuration parameters of the response signal include at least one of the following: response signal content indication information, response signal time and frequency resources, response signal encoding method, and response signal modulation method; the above-mentioned response signal content indication information is used to indicate the content contained in the response signal; the above-mentioned response signal time and frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, sending period, and number of repeated transmissions of the response signal; the above-mentioned response signal encoding method includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding; the above-mentioned response signal modulation method includes one of ASK, FSK, PSK, and QAM.

[0296] S602: Receive a response signal to the second signal according to a reception configuration parameter of the response signal.

[0297] In an embodiment of the present application, after the environmental Internet of Things device receives the second signal, if the environmental Internet of Things device does not have the ability to independently generate signals, it backscatters the second signal to generate a response signal. At this time, the intermediate node can receive the response signal according to the receiving configuration parameters of the response signal; if the environmental Internet of Things device has the ability to independently generate signals, it directly generates the response signal independently and sends it to the intermediate node. At this time, the intermediate node can receive the response signal according to the receiving configuration parameters of the response signal.

[0298] According to the method described in the embodiment of the present application, the intermediate node can obtain the information required by the base station from the environmental Internet of Things device with the help of the response signal, and report it to the base station through the third signal.

[0299] In one embodiment, a signal transmission method of the intermediate node decoding signal is further provided, that is, when the intermediate node executes step S204 "sending a third signal to the base station according to the response signal", as shown in FIG. Figure 8 As shown, the specific steps are:

[0300] S701: Decode the first signal to obtain a sending configuration parameter of the third signal.

[0301] The transmission configuration parameters of the third signal include at least one of the following: third signal content indication information; third signal time-frequency resources and modulation and coding information of the third signal, such as MCS; the third signal time-frequency resources include at least one of the third signal's time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions. The third signal content indication information indicates the content contained in the third signal.

[0302] S702: Generate a third signal according to the sending configuration parameters of the third signal and the response signal, and send the third signal to the base station.

[0303] In an embodiment of the present application, when the intermediate node receives a response signal, in this scenario, since the signal processing capability of the intermediate node is to generate a second signal according to parameters predefined by the protocol or preconfigured by the base station, the intermediate node can directly obtain the transmission configuration parameters of the second signal, the reception configuration parameters of the second signal, and the transmission configuration parameters of the response signal according to the protocol predefined or preconfigured by the base station, and the transmission configuration parameters of the third signal are carried in the first signal, so when the intermediate node receives the first signal, it decodes the first signal and obtains the transmission configuration parameters of the third signal from it to determine the method in which the intermediate node generates and / or sends the third signal. Therefore, when the intermediate node receives the response signal, it can generate and send the third signal to the base station based on the transmission configuration parameters of the third signal obtained from the first signal and the device information of the environmental Internet of Things device in the response signal.

[0304] The method described in the embodiment of the present application allows the base station to flexibly schedule the third signal, and the base station or intermediate node can flexibly schedule the second signal and the response signal. By properly configuring the transmission parameters, the transmission resource utilization rate can be improved and interference can be reduced.

[0305] Based on the first signal transmission solution described in the above embodiment, Figure 9 As shown, the method includes:

[0306] S801. A base station generates a first signal according to a sending configuration parameter of a third signal.

[0307] S802: The base station sends a first signal to the intermediate node.

[0308] S803, the intermediate node obtains the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, the sending configuration parameters of the response signal and the receiving configuration parameters of the response signal according to the preset configuration parameters; the preset configuration parameters include transmission configuration parameters configured by the base station or pre-configured or pre-defined by the protocol.

[0309] S804: The intermediate node adds the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal to the first signal to generate a second signal.

[0310] S805: The intermediate node sends the second signal to the environmental Internet of Things device according to the sending configuration parameters of the second signal.

[0311] S806, the environmental Internet of Things device obtains a receiving configuration parameter of the second signal from the second signal to receive the second signal, and obtains a sending configuration parameter of the response signal from the second signal to generate a response signal.

[0312] S807, the environmental IoT device sends a response signal to the intermediate node.

[0313] S808: The intermediate node receives the response signal according to the reception configuration parameters of the response signal.

[0314] S809: The intermediate node obtains a sending configuration parameter of the third signal from the first signal, and generates a third signal according to the sending configuration parameter of the third signal and the response signal.

[0315] S810: The intermediate node sends a third signal to the base station.

[0316] In one embodiment, a method for an intermediate node to transmit a signal is further provided, namely, a third signal transmission scheme. In this scheme, when the intermediate node executes step S202 "sending a second signal to the environmental IoT device according to the first signal", as shown in FIG. Figure 10 As shown, the specific steps are:

[0317] S901: Decode a first signal to obtain a sending configuration parameter of a second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of a response signal.

[0318] In this signal transmission scenario, the first signal includes the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, the sending configuration parameters of the response signal, the receiving configuration parameters of the response signal, and the sending configuration parameters of the third signal; the first signal is any one of the following: DCI signaling, RRC signaling, and MAC CE signaling.

[0319] S902: Generate a second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

[0320] In an embodiment of the present application, when the intermediate node obtains the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, and the sending configuration parameters of the response signal from the first signal based on the aforementioned steps, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, and the sending configuration parameters of the response signal can be carried in the first signal to generate a second signal, and the second signal can be sent to the environmental Internet of Things device.

[0321] The method described in the embodiment of the present application provides a method in which an intermediate node decodes a first signal and transmits a signal according to the instruction of the first signal. In this method, the base station can indicate the signal content and parameters of the communication between the intermediate node and the environmental Internet of Things device. On the one hand, it meets the low power consumption requirements of the communication of the environmental Internet of Things device, and at the same time enables the base station to flexibly schedule the communication between the intermediate node and the environmental Internet of Things device.

[0322] In one embodiment, a method for an intermediate node to transmit a signal is also provided, that is, a method for an intermediate node to receive a response signal, such as Figure 11 As shown, the specific steps are:

[0323] S1001: Decode a first signal to obtain a receiving configuration parameter of a response signal.

[0324] S1002: Receive a response signal according to the reception configuration parameters of the response signal.

[0325] In an embodiment of the present application, after the environmental Internet of Things device receives the second signal, if the environmental Internet of Things device does not have the ability to independently generate signals, the second signal is backscattered to generate a response signal. At this time, the intermediate node can receive the response signal according to the receiving configuration parameters of the response signal obtained from the first signal; if the environmental Internet of Things device has the ability to independently generate signals, the response signal is directly generated independently and sent to the intermediate node. At this time, the intermediate node can receive the response signal according to the receiving configuration parameters of the response signal obtained from the first signal.

[0326] The method described in the embodiment of the present application provides a method for an intermediate node to decode a first signal and respond to an environmental Internet of Things device to transmit a signal according to the instruction of the first signal. That is, the method realizes a manner in which a base station can instruct an intermediate node to respond to an environmental Internet of Things device. On the one hand, it meets the low power consumption requirement of the communication of the environmental Internet of Things device, and at the same time enables the base station to flexibly schedule the communication between the intermediate node and the environmental Internet of Things device.

[0327] In one embodiment, a signal transmission method of an intermediate node decoding signal is further provided, that is, when the intermediate node performs the step of sending the third signal, such as Figure 12 As shown, the specific steps are:

[0328] S1101: Decode the first signal to obtain a sending configuration parameter of the third signal.

[0329] S1102: Generate the third signal according to the sending configuration parameters of the third signal and the response signal, and send the third signal to the base station.

[0330] In this embodiment of the present application, when the intermediate node receives the response signal, in this scenario, since the transmission configuration parameters of the third signal are carried in the first signal, the intermediate node decodes the first signal upon receiving the first signal and obtains the transmission configuration parameters of the third signal therefrom to determine the manner in which the intermediate node generates and / or transmits the third signal. Therefore, when the intermediate node receives the response signal, it can generate and transmit the third signal to the base station based on the transmission configuration parameters of the third signal obtained from the first signal and the device information of the environmental IoT device in the response signal.

[0331] The method described in the embodiment of the present application provides a method for an intermediate node to decode a first signal and determine the signal transmission method between the intermediate node and the base station according to the indication of the first signal. On the one hand, it meets the low power consumption requirements of the communication of the environmental Internet of Things device, and at the same time enables the base station to flexibly schedule the communication between the intermediate node and the environmental Internet of Things device.

[0332] Based on the first signal transmission solution described in the above embodiment, Figure 13 As shown, the method includes:

[0333] S1201: The base station generates a first signal according to a sending configuration parameter of a second signal, a receiving configuration parameter of a second signal, a sending configuration parameter of a response signal, a receiving configuration parameter of a response signal, and a sending configuration parameter of a third signal.

[0334] S1202: The base station sends a first signal to the intermediate node.

[0335] S1203: The intermediate node obtains a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal according to the content obtained from the first signal.

[0336] S1204: The intermediate node adds the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal to the first signal to generate a second signal.

[0337] S1205: The intermediate node sends the second signal to the environmental Internet of Things device according to the sending configuration parameters of the second signal.

[0338] S1206, the environmental Internet of Things device obtains a receiving configuration parameter of the second signal from the second signal to receive the second signal, and obtains a sending configuration parameter of the response signal from the second signal to generate a response signal.

[0339] S1207, the environmental IoT device sends a response signal to the intermediate node.

[0340] S1208: The intermediate node receives a response signal according to the response signal reception configuration parameter obtained from the first signal.

[0341] S1209: The intermediate node obtains a sending configuration parameter of the third signal from the first signal, and generates a third signal according to the sending configuration parameter of the third signal and the response signal.

[0342] S1210: The intermediate node sends a third signal to the base station.

[0343] In one embodiment, a method for an intermediate node to transmit a signal is further provided, namely, a fourth signal transmission scheme. In this scheme, when the intermediate node executes step S202 "sending a second signal to the environmental Internet of Things device according to the first signal", as shown in FIG. Figure 14 As shown, the specific steps are:

[0344] S1301: Determine a sending configuration parameter of a second signal, a receiving configuration parameter of a second signal, and a sending configuration parameter of a response signal.

[0345] In this signal transmission scenario, the first signal includes the transmission configuration parameters of the third signal. The first signal is any of the following: DCI signaling, RRC signaling, MAC CE signaling. The second signal is a signal that can be received (demodulated or decoded) by the ambient IoT device.

[0346] In an embodiment of the present application, when the intermediate node receives the first signal sent by the base station, it can independently determine the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, and the sending configuration parameters of the response signal.

[0347] S1302: Generate a second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

[0348] In an embodiment of the present application, when the intermediate node autonomously determines the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, and the sending configuration parameters of the response signal based on the aforementioned steps, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal can be carried in the first signal to generate a second signal, and the second signal can be sent to the environmental Internet of Things device based on the signal sending method determined according to the sending configuration parameters of the second signal.

[0349] In the method described in the embodiment of the present application, the intermediate node has the parameter configuration capability, and through the configuration of the intermediate node, it can independently determine the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal to generate and send the second signal. The intermediate node can autonomously configure the parameters according to the instructions of the base station to transmit signals with the environmental Internet of Things device, which can meet the low power consumption and low cost requirements of the environmental Internet of Things device.

[0350] In one embodiment, a method for an intermediate node to transmit a signal is further provided, that is, when the intermediate node performs the step of receiving a response signal, such as Figure 15 As shown, the specific steps are:

[0351] S1401: Determine reception configuration parameters of a response signal.

[0352] S1402: Receive a response signal according to the reception configuration parameters of the response signal.

[0353] In an embodiment of the present application, after the environmental Internet of Things device receives the second signal, if the environmental Internet of Things device does not have the ability to independently generate signals, it backscatters the second signal to generate a response signal. At this time, the intermediate node can receive the response signal according to the autonomously determined reception configuration parameters of the response signal; if the environmental Internet of Things device has the ability to independently generate signals, it directly and independently generates the response signal and sends it to the intermediate node. At this time, the intermediate node can receive the response signal according to the autonomously determined reception configuration parameters of the response signal.

[0354] In the method described in the embodiment of the present application, the intermediate node has the parameter configuration capability, and the receiving configuration parameters of the response signal can be independently determined through the configuration of the intermediate node. The intermediate node can autonomously configure the parameters according to the instructions of the base station to transmit signals with the environmental Internet of Things device, which can meet the low power consumption and low cost requirements of the environmental Internet of Things device.

[0355] In one embodiment, a signal transmission method of an intermediate node decoding signal is further provided, that is, when the intermediate node performs the step of sending the third signal, such as Figure 16 As shown, the specific steps are:

[0356] S1501: Decode the first signal to obtain a sending configuration parameter of the third signal.

[0357] S1502: Generate the third signal according to the sending configuration parameters of the third signal and the response signal, and send the third signal to the base station.

[0358] In this embodiment of the present application, when the intermediate node receives the response signal, in this scenario, since the transmission configuration parameters of the third signal are carried in the first signal, the intermediate node decodes the first signal upon receiving the first signal and obtains the transmission configuration parameters of the third signal therefrom to determine the manner in which the intermediate node generates and / or transmits the third signal. Therefore, when the intermediate node receives the response signal, it can generate and transmit the third signal to the base station based on the transmission configuration parameters of the third signal obtained from the first signal and the device information of the environmental IoT device in the response signal.

[0359] The method described in the embodiment of the present application provides a method for an intermediate node to decode a first signal and determine the signal transmission method between the intermediate node and the base station according to the indication of the first signal. On the one hand, it meets the low power consumption requirements of the communication of the environmental Internet of Things device, and at the same time enables the base station to flexibly schedule the communication between the intermediate node and the environmental Internet of Things device.

[0360] Based on the first signal transmission solution described in the above embodiment, Figure 17As shown, the method includes:

[0361] S1601. The base station generates a first signal according to a sending configuration parameter of a third signal.

[0362] S1602: The base station sends a first signal to the intermediate node.

[0363] S1603: The intermediate node autonomously determines a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, a sending configuration parameter of the response signal, and a receiving configuration parameter of the response signal.

[0364] S1604: The intermediate node adds the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal to the first signal to generate a second signal.

[0365] S1605: The intermediate node sends the second signal to the environmental IoT device according to the sending configuration parameters of the second signal.

[0366] S1606, the environmental Internet of Things device obtains a receiving configuration parameter of the second signal from the second signal to receive the second signal, and obtains a sending configuration parameter of the response signal from the second signal to generate a response signal.

[0367] S1607, the environmental IoT device sends a response signal to the intermediate node.

[0368] S1608: The intermediate node receives the response signal according to the reception configuration parameters of the response signal.

[0369] S1609: The intermediate node obtains a sending configuration parameter of the third signal from the first signal, and generates a third signal according to the sending configuration parameter of the third signal and the response signal.

[0370] S1610: The intermediate node sends a third signal to the base station.

[0371] In one embodiment, before sending the first signal, the base station may instruct the intermediate node to perform a specific response method on the first signal and / or the response signal through at least one of DCI signaling, MAC CE signaling, and RRC signaling. Figure 2 The method described in the embodiment, such as Figure 18 As shown, the method further comprises the steps of:

[0372] S205: Send capability information of the intermediate node to the base station.

[0373] Among them, the capability information of the intermediate node includes at least one of signal decoding capability, signal sending capability, and parameter configuration capability; the signal decoding capability may refer to the capability to detect or decode the first signal, that is, whether the first signal can be demodulated, decoded, etc.; the signal sending capability may refer to the capability to generate or send the second signal, that is, whether the second signal that can be received by the environmental Internet of Things device can be independently generated or sent. For example, the signal sending capability includes the capability to modulate the signal, and the modulation capability refers to supporting at least one modulation method among OOK, ASK, FSK, PSK, and OFDM; the signal sending capability may also refer to the capability to demodulate or decode the response signal, that is, whether the response signal sent by the environmental Internet of Things device can be demodulated, decoded, etc., specifically including: first, the intermediate node demodulates the reverse dispersion of the incident signal by the environmental Internet of Things device The ability of the intermediate node to demodulate the response signal generated by the environmental IoT device includes: demodulation capability, which refers to supporting the demodulation of at least one modulation mode among ASK, FSK, and QAM, and supporting the demodulation of at least one waveform among OOK, ASK, FSK, and OFDM; decoding capability, such as supporting decoding processing of convolutional code, Polar code, FM0 code, Miller code, Manchester code, PIE code, NRZ code, etc.; second, the ability of the intermediate node to demodulate the response signal independently generated by the environmental IoT device, including: demodulation capability, which refers to supporting the demodulation of at least one modulation mode among ASK and FSK, and supporting the demodulation of at least one waveform among OOK-1, OOK-4, FSK, PSK, QAM, and OOK-based OFDM; decoding capability, such as supporting decoding processing of convolutional code, Polar code, FM0 code, Miller code, and Manchester code.

[0374] In an embodiment of the present application, before receiving the first signal sent by the base station, the intermediate node may also send the capability information of the intermediate node to the base station so that the base station can instruct the intermediate node on how to respond to the received signal based on the capability information of the intermediate node.

[0375] Optionally, the intermediate node can also send the device capabilities of the environmental IoT devices to the base station, such as signal transmission capabilities, including backscattering, independent generation and transmission of signals, and signal amplification; energy storage capabilities, including whether it has energy storage pregnancy testing and energy storage capacity, etc.

[0376] In an embodiment of the present application, before receiving the first signal sent by the base station, the intermediate node may also send the device capabilities of the environmental Internet of Things device to the base station, so that the base station can instruct the environmental Internet of Things device on how to respond to the received signal based on the capability information of the environmental Internet of Things device.

[0377] S206: Receive response mode indication information returned by the base station according to the capability information; the response mode indication information is used to indicate the response mode of the intermediate node to the received signal.

[0378] The received signal includes a first signal or a response signal.

[0379] The response method of the intermediate node to the first signal includes any one of the following: sending the first signal as the second signal to the environmental Internet of Things device; sending the second signal to the environmental Internet of Things device according to the sending configuration parameters of the second signal obtained according to the preset configuration parameters, and receiving the response signal according to the receiving configuration parameters of the response signal obtained according to the preset configuration parameters; sending the second signal to the environmental Internet of Things device according to the second signal sending configuration parameters indicated by the first signal, and receiving the response signal according to the response signal receiving configuration parameters indicated by the first signal; the response method of the intermediate node to the response signal includes any one of the following: sending the response signal as the third signal to the base station; receiving and decoding the response signal, and sending the third signal to the base station according to the third signal sending configuration parameters indicated by the first signal.

[0380] To illustrate the method described in an embodiment of the present application, for example, an intermediate node reports that it has the ability to decode a first signal, send a second signal, decode a response signal, and send a third signal, but does not have the ability to configure parameters. Based on the capabilities of the intermediate node, the base station instructs the intermediate node, through at least one of DCI, MAC CE, and RRC signaling, to respond to the first signal by receiving and decoding the first signal, sending the second signal according to the second signal transmission configuration parameters indicated by the first signal, and receiving the response signal according to the response signal reception configuration parameters indicated by the first signal; and instructs the intermediate node to respond to the response signal by receiving and decoding the response signal, and sending the third signal according to the third signal transmission configuration parameters indicated by the first signal. For another example, the intermediate node reports that it has the ability to decode the first signal, send the second signal, configure parameters, decode the response signal, and send the third signal. Based on the capabilities of the intermediate node, the base station instructs the intermediate node, through at least one of DCI, MAC CE, and RRC signaling, to respond to the first signal by: receiving and decoding the first signal, autonomously determining second signal transmission configuration parameters, transmitting the second signal, autonomously determining response signal reception configuration parameters, and receiving the response signal; and instructs the intermediate node to respond to the response signal by: receiving and decoding the response signal, and transmitting a third signal according to the third signal transmission configuration parameters indicated by the first signal. It should be noted that the signal indicating the response method of the intermediate node by the base station and the first signal can be the same signal, or can be two independent signals.

[0381] In the embodiment of the present application, the base station can schedule the intermediate node to perform different responses according to the capabilities of the intermediate node, thereby achieving normal communication between the base station and the Internet of Things device.

[0382] above Figure 2-18The signal transmission method described in the embodiment is a signal transmission method on the intermediate node side. The present application also provides a signal transmission method on the base station side.

[0383] In one embodiment, Figure 19 As shown, a signal transmission method is provided, which is applied to Figure 1 The base station in FIG is taken as an example to illustrate the process, including the following steps:

[0384] S1701, sending a first signal to an intermediate node; the first signal is used to trigger the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

[0385] The embodiment of the present application relates to a method for a base station to send a signal to an intermediate node. The method is basically the same as Figure 2 The methods described in the examples are basically the same. Please refer to the above description for details and will not be repeated here.

[0386] In one embodiment, Figure 20 As shown, in Figure 19 A signal transmission method is also provided based on the embodiment, and the method further includes:

[0387] S1702, receiving a third signal returned by the intermediate node; the third signal is generated by the intermediate node according to the response signal sent by the environmental Internet of Things device; the response signal is generated by the environmental Internet of Things device based on the second signal.

[0388] The embodiment of the present application relates to a method for a base station to receive a third signal sent by an intermediate node, which is basically the same as Figure 3 The methods described in the examples are basically the same. Please refer to the above description for details and will not be repeated here.

[0389] In one embodiment, a method for implementing the base station sending the first signal to the intermediate node is also provided. Figure 19 Based on the method described in the embodiment, Figure 21 As shown, it also includes:

[0390] S1703: Determine the sending configuration parameters of the response signal and the receiving configuration parameters of the second signal.

[0391] Correspondingly, when executing the above step S1601, the base station specifically performs the steps of: carrying the sending configuration parameters of the response signal and the receiving configuration parameters of the second signal in the first signal and sending them to the intermediate node.

[0392] The embodiment of the present application relates to a method for sending a first signal by a base station. This method is basically consistent with the first transmission scheme mentioned above. For details, please refer to the above description and will not be repeated here.

[0393] In one embodiment, a method for implementing the base station sending the first signal to the intermediate node is also provided. Figure 19 Based on the method described in the embodiment, Figure 22 As shown, it also includes:

[0394] S1704: Determine sending configuration parameters of the third signal.

[0395] Correspondingly, when executing the above step S1601, the base station specifically performs the steps of: carrying the sending configuration parameters of the third signal in the first signal and sending it to the intermediate node.

[0396] An embodiment of the present application relates to a method for sending a first signal by a base station. This method is basically consistent with the second or fourth transmission scheme mentioned above. For details, please refer to the above description and will not be repeated here.

[0397] In one embodiment, a method for implementing the base station sending the first signal to the intermediate node is also provided. Figure 19 Based on the method described in the embodiment, Figure 23 As shown, it also includes:

[0398] S1705 , determine a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, a sending configuration parameter of the response signal, a receiving configuration parameter of the response signal, and a sending configuration parameter of the third signal.

[0399] Correspondingly, when the base station executes the above-mentioned S1601 step, it specifically performs the following steps: carrying the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, the sending configuration parameters of the response signal, the receiving configuration parameters of the response signal and the sending configuration parameters of the third signal in the first signal and sending them to the intermediate node.

[0400] The embodiment of the present application relates to a method for sending a first signal by a base station. This method is basically consistent with the aforementioned third transmission scheme. For details, please refer to the aforementioned description and will not be repeated here.

[0401] above Figure 19-23 The signal transmission method described in the embodiment is a signal transmission method on the base station side. The present application also provides a signal transmission method on the environmental Internet of Things device side.

[0402] In one embodiment, Figure 24 As shown, a signal transmission method is provided, which is applied to Figure 1 This is explained using the environmental IoT device in the example, including the following steps:

[0403] S1801, receiving a second signal sent by an intermediate node; the second signal is generated by the intermediate node based on a first signal sent by a base station.

[0404] The embodiment of the present application relates to a method for an environmental Internet of Things device to receive a signal sent by an intermediate node. The method is basically the same as Figure 2 The methods described in the examples are basically the same. Please refer to the above description for details and will not be repeated here.

[0405] In one embodiment, Figure 25 As shown, in Figure 24 A signal transmission method is also provided based on the embodiment, and the method further includes:

[0406] S1802, sending a response signal to the intermediate node; the response signal is used to trigger the intermediate node to generate a third signal according to the response signal, and send the third signal to the base station.

[0407] The embodiment of the present application relates to a method for an environmental Internet of Things device to send a signal to an intermediate node. The method is basically the same as Figure 3 The methods described in the examples are basically the same. Please refer to the above description for details and will not be repeated here.

[0408] In one embodiment, a method for an environmental Internet of Things device to generate a response signal is also provided, that is, when the environmental Internet of Things device executes the step of "generating a response signal according to the second signal", the specific steps are: according to the sending configuration parameters of the response signal in the second signal, the second signal is backscattered to generate a response signal

[0409] The embodiment of the present application relates to a method for an environmental Internet of Things device to receive a signal sent by an intermediate node. This method is basically consistent with the method for generating a response signal described in the embodiment. For details, please refer to the above description and will not be repeated here.

[0410] In one embodiment, another method for an environmental Internet of Things device to generate a response signal is also provided, that is, when the environmental Internet of Things device executes the step of "generating a response signal according to the second signal", the specific execution steps are: independently generating a response signal according to the sending configuration parameters of the response signal in the second signal.

[0411] The embodiment of the present application relates to a method for an environmental Internet of Things device to receive a signal sent by an intermediate node. This method is basically consistent with the method for generating a response signal described in the embodiment. For details, please refer to the above description and will not be repeated here.

[0412] It should be understood that although Figure 2-25 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. In addition, Figure 2-25At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The order of execution of these steps or stages is not necessarily one by one, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0413] In one embodiment, Figure 26 As shown, a signal transmission device is provided, comprising:

[0414] The first receiving module 10 is used to receive a first signal sent by the base station; the first signal is used to trigger the intermediate node to communicate with the environmental Internet of Things device.

[0415] The first sending module 11 is configured to send a second signal to the environmental IoT device according to the first signal.

[0416] In one embodiment, the first sending module 11 is specifically configured to perform any one of the following: sending the first signal as the second signal to the environmental Internet of Things device;

[0417] Sending the second signal to the environmental IoT device according to transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol, and receiving a response signal to the second signal;

[0418] Sending the second signal to the environmental Internet of Things device according to the sending configuration parameters indicated by the first signal, and receiving a response signal to the second signal;

[0419] Determine a sending configuration parameter of a second signal, send the second signal to the environmental Internet of Things device according to the sending configuration parameter, and receive a response signal according to a receiving configuration parameter corresponding to the sending configuration parameter.

[0420] In one embodiment, a signal transmission device is provided, the signal transmission device further comprising:

[0421] A second receiving module is configured to receive a response signal sent by the environmental Internet of Things device based on the second signal; the response signal is sent in a backscattering manner or is generated based on the second signal;

[0422] The second sending module is configured to send a third signal to the base station according to the response signal.

[0423] In one embodiment, the intermediate node responds to the response signal by backscatter generation, including:

[0424] sending the response signal as the third signal to the base station; or,

[0425] The intermediate node responds to the response signal in a manner generated according to the second signal, including:

[0426] Receive and decode the response signal, and send the third signal to the base station according to the third signal sending configuration parameter indicated by the first signal and the response signal.

[0427] In one embodiment, the first signal is any one of the following: a query signal, an indication signal, a scheduling signal, and a request signal.

[0428] In one embodiment, the first signal includes configuration parameters for sending a response signal and configuration parameters for receiving a second signal.

[0429] In one embodiment, the first signal is carried by any one of the following: DCI signaling, RRC signaling, and MAC CE signaling.

[0430] In one embodiment, the first signal includes transmission configuration parameters of the third signal.

[0431] In one embodiment, the receiving of the response signal of the second signal includes:

[0432] Acquiring reception configuration parameters of the response signal according to transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol;

[0433] A response signal to the second signal is received according to the reception configuration parameter of the response signal.

[0434] In one embodiment, the signal transmission device further includes:

[0435] The fifth receiving module is used to receive the base station configuration or pre-configured or protocol predefined transmission configuration parameters sent by the base station.

[0436] In one embodiment, the first sending module 11 includes:

[0437] a decoding unit, configured to decode the first signal to obtain a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal;

[0438] A sending unit is used to generate the second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

[0439] In one embodiment, the first signal includes at least one of the following: a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, a sending configuration parameter of the response signal, a receiving configuration parameter of the response signal, and a sending configuration parameter of the third signal.

[0440] In one embodiment, the first sending module 11 includes:

[0441] a determining unit, configured to determine a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal;

[0442] A sending unit is used to generate the second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

[0443] In one embodiment, the first signal includes transmission configuration parameters of the third signal.

[0444] In one embodiment, the second receiving module 12 includes:

[0445] a determining unit, configured to determine a receiving configuration parameter of a response signal;

[0446] The receiving unit is configured to use the receiving configuration parameters of the response signal as the receiving configuration parameters corresponding to the sending configuration parameters, and receive the response signal according to the receiving configuration parameters.

[0447] In one embodiment, the signal transmission device further includes:

[0448] a fifth sending module, configured to send the capability information of the intermediate node to the base station;

[0449] The third receiving module is configured to receive response mode indication information returned by the base station according to the capability information; the response mode indication information is used to indicate a response mode of the intermediate node to the received signal.

[0450] In one embodiment, the capability information includes at least one of signal decoding capability, signal sending capability, and parameter configuration capability.

[0451] In one embodiment, the received signal includes the first signal or a response signal.

[0452] In one embodiment, the first signal includes at least one of the following:

[0453] sending configuration parameters of the second signal;

[0454] receiving configuration parameters of the second signal;

[0455] Configuration parameters for sending response signals;

[0456] Receiving configuration parameters of the response signal;

[0457] transmission configuration parameters of the third signal;

[0458] Identification of ambient IoT devices.

[0459] In one embodiment, the first signal is used to indicate at least one of the following:

[0460] instructing the intermediate node to send the second signal;

[0461] instructing the intermediate node to receive a response signal;

[0462] The intermediate node is instructed to send a third signal.

[0463] In one embodiment, the response signal is sent by backscattering or independently generated.

[0464] In one embodiment, the third signal includes at least one of the following:

[0465] Information of the intermediate node;

[0466] First response information; the first response information is the response information of the environmental Internet of Things device received by the intermediate node;

[0467] First confirmation information; the first confirmation information is used to represent the communication status between the environmental Internet of Things device and the intermediate node;

[0468] Second response information: The second response information is the response information of the intermediate node to the first signal.

[0469] In one embodiment, the second signal includes at least one of the following:

[0470] A function identifier of the second signal; the function identifier of the second signal is used to indicate the function performed by the environmental Internet of Things device;

[0471] Functional parameters; the functional parameters are used to indicate various parameters of the environmental Internet of Things device to perform functions;

[0472] Environmental IoT device identification;

[0473] Environmental IoT device category identification;

[0474] Environmental IoT device group identification;

[0475] Energy collection signal; the energy collection signal is used to instruct the environmental Internet of Things device to collect energy;

[0476] Synchronization signal; the synchronization signal is used to instruct the environmental Internet of Things device to synchronize time and / or frequency with the base station;

[0477] A sending configuration parameter of a response signal; the sending configuration parameter of the response signal is used to instruct the environmental Internet of Things device to send the response signal;

[0478] Intermediate node identification;

[0479] Base station identifier.

[0480] In one embodiment, the second signal is used to instruct the environmental IoT device to perform at least one of the following:

[0481] Reporting data to the base station; the data includes sensor data of the environmental Internet of Things device, device identification of the environmental Internet of Things device, cargo information of the environmental Internet of Things device, and operating status information of the environmental Internet of Things device;

[0482] Group indication; the group indication is used to obtain the group identifier of the group to which the environmental Internet of Things device belongs;

[0483] Device access; the device access is used to execute the access process;

[0484] Sending a reference signal;

[0485] Delay indication; the delay indication is used to indicate the waiting delay before sending a response signal;

[0486] Time synchronization and / or frequency synchronization;

[0487] Energy collection; the energy collection is used to collect energy from the second signal;

[0488] Response threshold configuration; the response threshold configuration is used to set the threshold for sending signals;

[0489] Control activation and / or deactivation of functions;

[0490] Parameter adjustment of controlled equipment;

[0491] Backscatter coefficient indication.

[0492] In one embodiment, the response signal includes at least one of the following:

[0493] Environmental IoT device identification;

[0494] Intermediate node identification;

[0495] Base station identification;

[0496] Environmental Internet of Things device information; the environmental Internet of Things device information includes at least one of environmental Internet of Things device capabilities and device types;

[0497] Data to be reported; the data includes at least one of sensor data, equipment identification, cargo information, and operating status information of controlled equipment;

[0498] Second confirmation information: The second confirmation information is used to represent the status of the environmental Internet of Things device executing the function indicated by the base station.

[0499] In one embodiment, the transmission configuration parameter of the second signal includes at least one of the following:

[0500] Second signal content indication information; the second signal content indication information is used to indicate the content contained in the second signal;

[0501] Second signal time-frequency resources; the second signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, number of repeated transmissions, and transmission beam of the second signal;

[0502] A second signal encoding mode; the second signal encoding mode includes one of PIE encoding, Miller encoding, Manchester encoding, and FM0 encoding;

[0503] The second signal modulation mode includes one of ASK, FSK, PSK, and QAM.

[0504] In one embodiment, the sending configuration parameters of the response signal include at least one of the following:

[0505] Response signal content indication information; the response signal content indication information is used to indicate the content contained in the response signal;

[0506] Response signal time-frequency resources; the response signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the response signal;

[0507] Response signal encoding mode; the response signal encoding mode includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding;

[0508] Response signal modulation mode: the response signal modulation mode includes one of ASK, FSK, PSK, and QAM.

[0509] In one embodiment, the reception configuration parameter of the response signal includes at least one of the following:

[0510] Response signal content indication information; the response signal content indication information is used to indicate the content contained in the response signal;

[0511] Response signal time-frequency resources; the response signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the response signal;

[0512] Response signal encoding mode; the response signal encoding mode includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding;

[0513] Response signal modulation mode: the response signal modulation mode includes one of ASK, FSK, PSK, and QAM.

[0514] In one embodiment, the transmission configuration parameter of the third signal includes at least one of the following:

[0515] Third signal content indication information: the third signal content indication information is used to indicate the content contained in the third signal;

[0516] The third signal time-frequency resource includes at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the third signal;

[0517] Modulation coding information of the third signal.

[0518] In one embodiment, Figure 27 As shown, a signal transmission device is provided, comprising:

[0519] The third sending module 20 is used to send a first signal to the intermediate node; the first signal is used to trigger the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

[0520] In one embodiment, the signal transmission device further includes:

[0521] The third receiving module is used to receive a third signal returned by the intermediate node; the third signal is generated by the intermediate node according to the response signal sent by the environmental Internet of Things device; the response signal is generated by the environmental Internet of Things device based on the second signal.

[0522] In one embodiment, Figure 28 As shown, a signal transmission device is provided, comprising:

[0523] The fourth receiving module 30 is configured to receive a second signal sent by an intermediate node; the second signal is generated by the intermediate node based on the first signal sent by the base station.

[0524] For the specific definition of the signal transmission device, please refer to the definition of the signal transmission method above and will not be repeated here. Each module in the above-mentioned signal transmission device can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software so that the processor can call and execute the operations corresponding to each of the above modules.

[0525] In one embodiment, a communication device is provided, such as Figure 29 As shown, it includes: a transmitter 50 and a receiver 60; the receiver 60 is used to receive a first signal sent by the base station, wherein the first signal is used to trigger the intermediate node to communicate with the environmental Internet of Things device; the transmitter 50 is used to send a second signal to the environmental Internet of Things device according to the first signal.

[0526] In one embodiment, the above-mentioned receiver is further used to receive a response signal sent by the environmental Internet of Things device based on the second signal; the response signal is sent by backscattering or generated according to the second signal.

[0527] In one embodiment, the transmitter is further configured to send a third signal to the base station according to the response signal.

[0528] In one embodiment, another communication device is provided, such as Figure 30 As shown, it includes: a transmitter 70; the transmitter 70 is used to send a first signal to the intermediate node; the first signal is used to instruct the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

[0529] In one embodiment, the communication device further comprises: a receiver;

[0530] The receiver is used to receive a third signal returned by the intermediate node; the third signal is generated by the intermediate node according to the response signal sent by the environmental Internet of Things device; the response signal is generated by the environmental Internet of Things device based on the second signal.

[0531] In one embodiment, another communication device is provided, such as Figure 31 As shown, it includes: a receiver 80; the receiver 80 is used to receive a second signal sent by the intermediate node; the second signal is generated by the intermediate node based on the first signal sent by the base station.

[0532] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0533] Receive a first signal sent by a base station; the first signal is used to trigger the intermediate node to communicate with the environmental Internet of Things device;

[0534] Send a second signal to the environmental Internet of Things device according to the first signal.

[0535] The above embodiment provides a computer-readable storage medium, whose implementation principle and technical effects are similar to those of the above method embodiment, and will not be repeated here.

[0536] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0537] Send a first signal to the intermediate node; the first signal is used to instruct the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

[0538] The above embodiment provides a computer-readable storage medium, whose implementation principle and technical effects are similar to those of the above method embodiment, and will not be repeated here.

[0539] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0540] A second signal sent by an intermediate node is received; the second signal is generated by the intermediate node based on the first signal sent by the base station.

[0541] The above embodiment provides a computer-readable storage medium, whose implementation principle and technical effects are similar to those of the above method embodiment, and will not be repeated here.

[0542] The present application also provides a computer program product comprising instructions, which, when executed on a computer, causes the computer to perform the following steps:

[0543] Receive a first signal sent by a base station; the first signal is used to trigger the intermediate node to communicate with the environmental Internet of Things device;

[0544] A second signal is sent to the environmental Internet of Things device according to the first signal; the second signal is a signal that can be received by the environmental Internet of Things device.

[0545] The above embodiment provides a computer program product, whose implementation principle and technical effects are similar to those of the above method embodiment, and will not be repeated here.

[0546] The present application also provides a computer program product comprising instructions, which, when executed on a computer, causes the computer to perform the following steps:

[0547] Send a first signal to the intermediate node; the first signal is used to instruct the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

[0548] The above embodiment provides a computer program product, whose implementation principle and technical effects are similar to those of the above method embodiment, and will not be repeated here.

[0549] The present application also provides a computer program product comprising instructions, which, when executed on a computer, causes the computer to perform the following steps:

[0550] A second signal sent by an intermediate node is received; the second signal is generated by the intermediate node based on the first signal sent by the base station.

[0551] The above embodiment provides a computer program product, whose implementation principle and technical effects are similar to those of the above method embodiment, and will not be repeated here.

[0552] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0553] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0554] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A signal transmission method, characterized in that: The method is applied to an intermediate node and includes: Receive a first signal sent by a base station; the first signal is used to trigger the intermediate node to communicate with the environmental Internet of Things device; A second signal is sent to the environmental Internet of Things device according to the first signal.

2. The method according to claim 1, characterized in that The sending a second signal to the environmental IoT device according to the first signal includes any one of the following: sending the first signal as the second signal to the environmental IoT device; Sending the second signal to the environmental IoT device according to transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol, and receiving a response signal to the second signal; Sending the second signal to the environmental Internet of Things device according to the sending configuration parameters indicated by the first signal, and receiving a response signal to the second signal; Determine a sending configuration parameter of a second signal, send the second signal to the environmental Internet of Things device according to the sending configuration parameter, and receive a response signal according to a receiving configuration parameter corresponding to the sending configuration parameter.

3. The method according to claim 1, characterized in that The method further comprises: receiving a response signal sent by the environmental Internet of Things device based on the second signal; wherein the response signal is sent by backscattering or generated according to the second signal; A third signal is sent to the base station according to the response signal.

4. The method according to claim 3, characterized in that The intermediate node responds to the response signal in a backscattering manner, including: sending the response signal as the third signal to the base station; or, The intermediate node responds to the response signal in a manner generated according to the second signal, including: Receive and decode the response signal, and send the third signal to the base station according to the third signal sending configuration parameter indicated by the first signal and the response signal.

5. The method according to claim 1, wherein The first signal is any one of the following: a query signal, an indication signal, a scheduling signal, and a request signal.

6. The method according to claim 5, characterized in that The first signal includes a sending configuration parameter of a response signal and a receiving configuration parameter of a second signal.

7. The method according to claim 2, characterized in that The sending the second signal to the environmental Internet of Things device according to the transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol includes: Acquire, according to the transmission configuration parameters configured or pre-configured by the base station or predefined by the protocol, a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal; Generate the second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

8. The method according to claim 1, characterized in that The first signal is carried by any one of the following signaling: DCI signaling, RRC signaling, and MAC CE signaling.

9. The method according to claim 7, characterized in that The first signal includes sending configuration parameters of the third signal.

10. The method according to claim 2, characterized in that The receiving of the response signal of the second signal includes: Acquiring reception configuration parameters of the response signal according to transmission configuration parameters configured or pre-configured by the base station or pre-defined by the protocol; A response signal to the second signal is received according to the reception configuration parameter of the response signal.

11. The method according to claim 10, characterized in that The method further comprises: Receive the base station configuration or pre-configuration or protocol predefined transmission configuration parameters sent by the base station.

12. The method according to claim 2, characterized in that The sending the second signal to the environmental Internet of Things device according to the sending configuration parameters indicated by the first signal includes: Decoding the first signal to obtain a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal; Generate the second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

13. The method according to claim 12, characterized in that The first signal includes at least one of the following: a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, a sending configuration parameter of the response signal, a receiving configuration parameter of the response signal, and a sending configuration parameter of the third signal.

14. The method according to claim 1, wherein The determining a sending configuration parameter of the second signal, and sending the second signal to the environmental Internet of Things device according to the sending configuration parameter, includes: Determining a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, and a sending configuration parameter of the response signal; Generate the second signal according to the first signal, the sending configuration parameters of the second signal, the receiving configuration parameters of the second signal and the sending configuration parameters of the response signal, and send the second signal to the environmental Internet of Things device.

15. The method according to claim 14, characterized in that The first signal includes sending configuration parameters of the third signal.

16. The method according to claim 2, characterized in that The receiving a response signal according to the receiving configuration parameter corresponding to the sending configuration parameter includes: determining reception configuration parameters of the response signal; The receiving configuration parameter of the response signal is used as the receiving configuration parameter corresponding to the sending configuration parameter, and the response signal is received according to the receiving configuration parameter.

17. The method according to claim 1, wherein The method further comprises: Sending capability information of the intermediate node to the base station; Receive response mode indication information returned by the base station according to the capability information; the response mode indication information is used to indicate a response mode of the intermediate node to the received signal.

18. The method according to claim 17, characterized in that The capability information includes at least one of signal decoding capability, signal sending capability, and parameter configuration capability.

19. The method according to claim 17, wherein The received signal includes the first signal or a response signal.

20. The method according to claim 1 or 2, characterized in that The first signal includes at least one of the following: sending configuration parameters of the second signal; receiving configuration parameters of the second signal; Configuration parameters for sending response signals; Receiving configuration parameters of the response signal; transmission configuration parameters of the third signal; Identification of ambient IoT devices.

21. The method according to claim 1 or 2, characterized in that The first signal is used to trigger at least one of the following: The intermediate node sends the second signal; The intermediate node receives the response signal; The intermediate node sends a third signal.

22. The method according to claim 3, characterized in that The third signal includes at least one of the following: Information of the intermediate node; First response information; the first response information is the response information of the environmental Internet of Things device received by the intermediate node; First confirmation information; The first confirmation information is used to represent the communication status between the environmental Internet of Things device and the intermediate node; Second response information: The second response information is the response information of the intermediate node to the first signal.

23. The method according to any one of claims 1 to 4, characterized in that The second signal includes at least one of the following: A function identifier of the second signal; the function identifier of the second signal is used to indicate the function performed by the environmental Internet of Things device; Functional parameters; the functional parameters are used to indicate various parameters of the environmental Internet of Things device to perform functions; Environmental IoT device identification; Environmental IoT device category identification; Environmental IoT device group identification; Energy collection signal; the energy collection signal is used for energy collection by the environmental Internet of Things device; Synchronization signal; the synchronization signal is used for time and / or frequency synchronization between the environmental Internet of Things device and the base station; Transmission configuration parameters of the response signal; the transmission configuration parameters of the response signal are used by the environmental Internet of Things device to send the response signal; Intermediate node identification; Base station identifier.

24. The method according to any one of claims 1 to 4, characterized in that The second signal is used to instruct the environmental IoT device to perform at least one of the following: reporting data to the base station; Group indication; the group indication is used to obtain the group identifier of the group to which the environmental Internet of Things device belongs; Device access; the device access is used to execute the access process; Sending a reference signal; Delay indication; The delay indication is used to indicate the waiting delay before sending a response signal; Time synchronization and / or frequency synchronization; Energy collection; the energy collection is used to collect energy from the second signal; Response threshold configuration; The response threshold configuration is used to set a threshold for sending a response signal; Control activation and / or deactivation of functions; Parameter adjustment of controlled equipment; Backscatter coefficient indication.

25. The method according to claim 3, wherein The response signal includes at least one of the following: Environmental IoT device identification; Intermediate node identification; Base station identification; Environmental Internet of Things device information; the environmental Internet of Things device information includes at least one of environmental Internet of Things device capabilities and device types; Data to be reported; Second confirmation information: The second confirmation information is used to represent the status of the environmental Internet of Things device executing the function indicated by the base station.

26. The method according to any one of claims 1 to 4, characterized in that The sending configuration parameter of the second signal includes at least one of the following: Second signal content indication information; the second signal content indication information is used to indicate the content contained in the second signal; Second signal time-frequency resources; the second signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, number of repeated transmissions, and transmission beam of the second signal; A second signal encoding mode; the second signal encoding mode includes one of PIE encoding, Miller encoding, Manchester encoding, and FM0 encoding; The second signal modulation mode includes one of ASK, FSK, PSK, and QAM.

27. The method according to claim 3, wherein The sending configuration parameters of the response signal include at least one of the following: Response signal content indication information; the response signal content indication information is used to indicate the content contained in the response signal; Response signal time-frequency resources; the response signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the response signal; Response signal encoding mode; the response signal encoding mode includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding; Response signal modulation mode: the response signal modulation mode includes one of ASK, FSK, PSK, and QAM.

28. The method according to claim 3, wherein The receiving configuration parameters of the response signal include at least one of the following: Response signal content indication information; the response signal content indication information is used to indicate the content contained in the response signal; Response signal time-frequency resources; the response signal time-frequency resources include at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the response signal; Response signal encoding mode; the response signal encoding mode includes one of PIE encoding, Miller encoding, Manchester code, and FM0 encoding; Response signal modulation mode: the response signal modulation mode includes one of ASK, FSK, PSK, and QAM.

29. The method according to claim 3, characterized in that The sending configuration parameter of the third signal includes at least one of the following: Third signal content indication information: the third signal content indication information is used to indicate the content contained in the third signal; The third signal time-frequency resource includes at least one of the time offset, time length, frequency offset, transmission bandwidth, transmission period, and number of repeated transmissions of the third signal; Modulation coding information of the third signal.

30. A signal transmission method, characterized in that: The method is applied to a base station, and the method includes: Send a first signal to the intermediate node; the first signal is used to trigger the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

31. The method according to claim 30, wherein The method further comprises: Receive a third signal returned by the intermediate node; the third signal is generated by the intermediate node according to the response signal sent by the environmental Internet of Things device; the response signal is generated by the environmental Internet of Things device based on the second signal.

32. The method according to claim 30, wherein The method further comprises: Determining a sending configuration parameter of the response signal and a receiving configuration parameter of the second signal; The sending the first signal to the intermediate node includes: The sending configuration parameters of the response signal and the receiving configuration parameters of the second signal are carried in the first signal and sent to the intermediate node.

33. The method according to claim 30, wherein The method further comprises: determining a transmission configuration parameter of a third signal; The sending the first signal to the intermediate node includes: The sending configuration parameters of the third signal are carried in the first signal and sent to the intermediate node.

34. The method according to claim 30, wherein The method further comprises: Determining a sending configuration parameter of the second signal, a receiving configuration parameter of the second signal, a sending configuration parameter of the response signal, a receiving configuration parameter of the response signal, and a sending configuration parameter of the third signal; The sending of the first signal to the intermediate node includes: The sending configuration parameters of the second signal, the receiving configuration parameters of the second signal, the sending configuration parameters of the response signal, the receiving configuration parameters of the response signal and the sending configuration parameters of the third signal are carried in the first signal and sent to the intermediate node.

35. A signal transmission method, characterized in that: The method is applied to an environmental Internet of Things device, and the method includes: A second signal sent by an intermediate node is received; the second signal is generated by the intermediate node based on the first signal sent by the base station.

36. The method according to claim 35, characterized in that The method further comprises: generating a response signal according to the second signal; The response signal is sent to the intermediate node; the response signal is used to trigger the intermediate node to generate a third signal according to the response signal, and send the third signal to the base station.

37. The method according to claim 36, wherein Generating a response signal according to the second signal includes: The second signal is backscattered according to the sending configuration parameter of the response signal in the second signal to generate the response signal.

38. The method according to claim 36, characterized in that Generating a response signal according to the second signal includes: The response signal is independently generated according to the sending configuration parameters of the response signal in the second signal.

39. A signal transmission device, characterized in that: The signal transmission device includes: A first receiving module is configured to receive a first signal sent by a base station; the first signal is used to trigger communication between the intermediate node and the environmental IoT device; The first sending module is used to send a second signal to the environmental Internet of Things device according to the first signal.

40. The device according to claim 39, characterized in that The signal transmission device further includes: A second receiving module is configured to receive a response signal sent by the environmental Internet of Things device based on the second signal; the response signal is sent in a backscattering manner or is generated based on the second signal; The second sending module is configured to send a third signal to the base station according to the response signal.

41. A signal transmission device, characterized in that: The signal transmission device includes: The third sending module is used to send a first signal to the intermediate node; the first signal is used to trigger the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

42. The device according to claim 41, characterized in that The signal transmission device further includes: The third receiving module is used to receive a third signal returned by the intermediate node; the third signal is generated by the intermediate node according to the response signal sent by the environmental Internet of Things device; the response signal is generated by the environmental Internet of Things device based on the second signal.

43. A signal transmission device, characterized in that: The signal transmission device includes: The fourth receiving module is used to receive a second signal sent by the intermediate node; the second signal is generated by the intermediate node based on the first signal sent by the base station.

44. A communication device, characterized in that include: transmitter and receiver; The receiver is configured to receive a first signal sent by the base station; the first signal is configured to trigger communication between the intermediate node and the environmental IoT device; The transmitter is configured to send a second signal to the environmental IoT device based on the first signal.

45. The apparatus according to claim 44, wherein The receiver is further configured to receive a response signal sent by the environmental IoT device based on the second signal; the response signal is sent by backscattering or generated based on the second signal.

46. The apparatus according to claim 45, wherein The transmitter is further configured to send a third signal to the base station according to the response signal.

47. A communication device, characterized in that include: transmitter; The transmitter is used to send a first signal to the intermediate node; the first signal is used to trigger the intermediate node to send a second signal to the environmental Internet of Things device according to the first signal.

48. The apparatus according to claim 47, wherein The communication device further includes: a receiver; The receiver is used to receive a third signal returned by the intermediate node; the third signal is generated by the intermediate node according to the response signal sent by the environmental Internet of Things device; the response signal is generated by the environmental Internet of Things device based on the second signal.

49. A communication device, characterized in that include: Receiver; The receiver is configured to receive a second signal sent by the intermediate node; The second signal is generated by the intermediate node based on the first signal sent by the base station.

50. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 38 are implemented.

51. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 38 are implemented.

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