Method, apparatus and device for transmitting power control, and storage medium

Abstract

The application discloses a transmission power control method, device, equipment and storage medium, and belongs to the technical field of Internet of Things. The method comprises the following steps: determining transmission power based on a first power control parameter, wherein the transmission power is the power when at least one of a carrier, data or a signal is transmitted to an Internet of Things device. On the one hand, the performance of the first intermediate node in transmitting at least one of the carrier, data or signal to the Internet of Things device can be ensured, and on the other hand, the interference of the first intermediate node to other data transmission when transmitting at least one of the carrier, data or signal can be reduced by controlling the transmission power.

Description

Transmit power control method, device, equipment and storage medium Technical Field

[0001] The embodiments of the present application relate to the field of Internet of Things, and in particular to a transmission power control method, apparatus, device and storage medium. Background Art

[0002] In IoT technology, when network devices are far apart from IoT devices, they can communicate with each other through intermediate nodes. For example, network devices can communicate with intermediate nodes in a two-way manner, and intermediate nodes can communicate with IoT devices in a two-way manner.

[0003] When the intermediate node sends at least one of a carrier, data, or a signal to an IoT device, how to control the transmission power of the intermediate node is an unresolved technical problem.

[0004] Summary of the Invention

[0005] The present invention provides a method, apparatus, device, and storage medium for controlling transmit power. The technical solution is as follows:

[0006] In one aspect, an embodiment of the present application provides a transmit power control method, performed by a first intermediate node, and comprising:

[0007] The transmit power is determined based on the first power control parameter, where the transmit power is the power when at least one of a carrier, data, or a signal is transmitted to the IoT device.

[0008] On the other hand, an embodiment of the present application provides a transmit power control method, which is performed by a network device and includes:

[0009] A first power control parameter is sent, where the first power control parameter is used to instruct the first intermediate node to determine a transmission power, where the transmission power is the power when the first intermediate node sends at least one of a carrier, data, or a signal to the Internet of Things device.

[0010] On the other hand, an embodiment of the present application provides a transmit power control method, which is performed by a second intermediate node and includes:

[0011] Sending a second power control parameter, where the second power control parameter is used together with the first power control parameter to determine a transmit power of the first intermediate node, or the second power control parameter is used to adjust the transmit power determined based on the first power control parameter;

[0012] The transmission power is the power used when the first intermediate node transmits at least one of a carrier, data, or a signal to the IoT device.

[0013] On the other hand, an embodiment of the present application provides a transmit power control device, the device comprising:

[0014] A determination module is used to determine a transmission power based on a first power control parameter, where the transmission power is a power when at least one of a carrier, data, or signal is transmitted to an IoT device.

[0015] On the other hand, an embodiment of the present application provides a transmit power control device, the device comprising:

[0016] A sending module is used to send a first power control parameter, where the first power control parameter is used to instruct the first intermediate node to determine a sending power, where the sending power is the power when the first intermediate node sends at least one of a carrier, data, or signal to the Internet of Things device.

[0017] On the other hand, an embodiment of the present application provides a transmit power control device, the device comprising:

[0018] a sending module, configured to send a second power control parameter, where the second power control parameter is used together with the first power control parameter to determine a transmit power of the first intermediate node, or where the second power control parameter is used to adjust the transmit power determined based on the first power control parameter;

[0019] The transmission power is the power used when the first intermediate node transmits at least one of a carrier, data, or a signal to the IoT device.

[0020] On the other hand, an embodiment of the present application provides a terminal device, the terminal device including a processor; wherein:

[0021] The processor is configured to determine a transmit power based on a first power control parameter, where the transmit power is a power when at least one of a carrier, data, or a signal is transmitted to an IoT device.

[0022] On the other hand, an embodiment of the present application provides a terminal device, comprising a processor and a transceiver connected to the processor; wherein:

[0023] The transceiver is configured to send a second power control parameter, where the second power control parameter is used together with the first power control parameter to determine a transmit power of the first intermediate node, or the second power control parameter is used to adjust the transmit power determined based on the first power control parameter;

[0024] The transmission power is the power used when the first intermediate node transmits at least one of a carrier, data, or a signal to the IoT device.

[0025] On the other hand, an embodiment of the present application provides a network device, comprising a processor and a transceiver connected to the processor; wherein:

[0026] The transceiver is used to send a first power control parameter, where the first power control parameter is used to instruct the first intermediate node to determine a transmission power, where the transmission power is the power when the first intermediate node sends at least one of a carrier, data, or signal to the Internet of Things device.

[0027] On the other hand, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored. The computer program is used to be executed by a processor to implement the above-mentioned transmission power control method.

[0028] On the other hand, an embodiment of the present application provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip runs on a terminal or a network device, it is used to implement the above-mentioned transmission power control method.

[0029] On the other hand, an embodiment of the present application provides a computer program product, which includes computer instructions, and the computer instructions are stored in a computer-readable storage medium; the processor of the communication device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, so that the communication device implements the above-mentioned transmission power control method.

[0030] On the other hand, an embodiment of the present application provides a computer program, which is executed by a processor of a communication device to implement the above-mentioned transmission power control method.

[0031] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0032] The first power control parameter is used to determine the transmission power of the first intermediate node when sending at least one of the carrier, data or signal to the Internet of Things device. On the one hand, this can ensure the performance of the first intermediate node in sending at least one of the carrier, data or signal to the Internet of Things device. On the other hand, controlling the transmission power is beneficial to reducing the interference of the first intermediate node to other data transmissions when sending at least one of the carrier, data or signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 shows a schematic diagram of a communication system provided by the related art;

[0034] FIG2 shows a schematic diagram of a communication system provided by the related art;

[0035] FIG3 shows a flow chart of a transmit power control method provided by an embodiment of the present application;

[0036] FIG4 shows a schematic diagram of a transmit power control method provided in an embodiment of the present application;

[0037] FIG5 is a schematic diagram showing a transmit power control method provided in an embodiment of the present application;

[0038] FIG6 shows a schematic diagram of a transmit power control method provided in an embodiment of the present application;

[0039] FIG7 shows a schematic diagram of a transmit power control method provided in an embodiment of the present application;

[0040] FIG8 shows a schematic diagram of a transmit power control method provided in an embodiment of the present application;

[0041] FIG9 shows a schematic diagram of a data block in a power control command provided by an embodiment of the present application;

[0042] FIG10 shows a flow chart of a transmit power control method provided in an embodiment of the present application;

[0043] FIG11 is a schematic diagram showing a transmit power control method provided in an embodiment of the present application;

[0044] FIG12 shows a flow chart of a transmit power control method provided in an embodiment of the present application;

[0045] FIG13 shows a flow chart of a transmit power control method provided in an embodiment of the present application;

[0046] FIG14 shows a structural block diagram of a transmission power control device provided in an embodiment of the present application;

[0047] FIG15 shows a structural block diagram of a transmission power control device provided in an embodiment of the present application;

[0048] FIG16 shows a structural block diagram of a transmission power control device provided in an embodiment of the present application;

[0049] FIG17 shows a schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] To further clarify the objectives, technical solutions, and advantages of this application, embodiments of this application will be described in further detail below, with reference to the accompanying drawings. Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of this application, as detailed in the appended claims. All other embodiments conceivable by persons of ordinary skill in the art without inventive effort with respect to the embodiments described herein are intended to be protected by this application. The terms used in this disclosure are intended solely to describe specific embodiments and are not intended to limit this disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It should be understood that while this disclosure may employ the terms first, second, third, etc. to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information, without departing from the scope of this disclosure. Depending on the context, the term "if" as used herein could be interpreted as "when," "when," or "in response to determining."

[0051] First, the relevant technologies involved in the embodiments of this application are introduced:

[0052] Classification of zero-power devices:

[0053] Based on the energy source and usage of zero-power devices, zero-power devices can be divided into the following types:

[0054] (1) Passive zero-power devices;

[0055] Zero-power devices do not require an internal power supply. When approaching a network device, they are within the near field generated by the network device's antenna radiation. For example, the network device is a reader / writer in a radio frequency identification (RFID) system. Therefore, the zero-power device's antenna generates an induced current through electromagnetic induction, which drives the device's low-power chip circuitry. This enables forward link signal demodulation and reverse link signal modulation. For backscatter links, the zero-power device can use backscatter or extremely low-power active transmission to transmit signals. Passive zero-power devices require no internal power supply for either the forward or reverse link, making them truly zero-power devices. Passive zero-power devices do not require a power supply, and their RF and baseband circuits are very simple. For example, they do not require components such as a low-noise amplifier (LNA), power amplifier (PA), crystal oscillator, or analog-to-digital converter (ADC). They offer numerous advantages, including small size, light weight, very low price, and long service life.

[0056] (2) Semi-passive zero-power devices;

[0057] Semi-passive zero-power devices lack their own power supply. Instead, they use a radio frequency energy harvesting module to harvest radio wave energy and store it in an energy storage unit, typically a capacitor. This energy storage unit then drives the low-power chip circuitry of the zero-power device, enabling tasks such as demodulating forward link signals and modulating backward link signals. For backscatter links, the zero-power device can transmit signals using either backscatter or extremely low-power active transmission.

[0058] Semi-passive zero-power devices require no internal power supply for either the forward or reverse link. The energy stored in the capacitors is derived from radio energy harvested by the RF energy harvesting module, making them truly zero-power devices. They inherit many of the advantages of passive zero-power devices, including small size, light weight, very low price, and long service life.

[0059] (3) Active zero-power devices;

[0060] Zero-power devices used in some scenarios can also be active zero-power devices, which can have a built-in power supply. This power supply drives the low-power chip circuitry of the zero-power device, enabling tasks such as demodulating forward link signals and modulating reverse link signals. However, for backscatter links, zero-power devices can use backscatter or extremely low-power active transmission to transmit signals. Therefore, the zero-power nature of active zero-power devices is primarily reflected in the fact that reverse link signal transmission does not consume the zero-power device's own power, but instead uses backscatter. In active zero-power devices, a built-in power supply powers the chip, increasing the tag's read and write distance and improving communication reliability. Therefore, they are suitable for use in scenarios with relatively high requirements for communication distance and read latency.

[0061] Cellular IoT:

[0062] The cellular Internet of Things (IoT) is booming. The 3rd Generation Partnership Project (3GPP) has standardized IoT technologies such as Narrow Band-Internet of Things (NB-IoT) and Machine-Type Communications (MTC). However, IoT communication needs in many scenarios remain unmet. For example:

[0063] Harsh communication environment;

[0064] Certain IoT scenarios may encounter extreme environments such as high temperature, low temperature, high humidity, high voltage, high radiation, or high-speed motion. Examples include ultra-high voltage substations, high-speed train track monitoring, environmental monitoring in high-altitude cold regions, and industrial production lines. In these scenarios, IoT terminal devices will not function due to the operating environment limitations of conventional power supplies. Furthermore, extreme operating environments are not conducive to IoT terminal device maintenance, such as replacing the power supply.

[0065] Requirements for extremely small terminal form factors;

[0066] Certain IoT communication scenarios, such as food traceability, commodity distribution, and smart wearables, require terminals to be extremely small for ease of use. For example, IoT terminals used for commodity management in the distribution process often use electronic tags, which are embedded in the product packaging in a very compact form factor. Another example is lightweight wearable IoT terminals that can meet user needs while improving the user experience.

[0067] Extremely low-cost IoT communication needs;

[0068] Many IoT communication scenarios require IoT terminal devices to be sufficiently low-cost to enhance their competitiveness compared to alternative technologies. For example, in logistics or warehousing scenarios, IoT terminal devices can be attached to each item to facilitate the management of large quantities of circulating items. Communication between the IoT terminal device and the logistics network enables precise management of the entire logistics process and lifecycle. These scenarios require IoT terminal devices to be sufficiently competitively priced.

[0069] Therefore, in order to cover these unmet IoT communication needs, cellular IoT also needs to develop ultra-low-cost, extremely small-size, power-free / maintenance-free IoT, and zero-power IoT can just meet these needs.

[0070] Zero-power IoT, also known as Ambient IoT or passive IoT, refers to IoT devices that use various environmental energies, such as radio frequency energy, light energy, solar energy, thermal energy, and mechanical energy, to power themselves. These devices can have no energy storage capacity or very limited energy storage capacity (such as using capacitors with a capacity of tens of microfarads). Compared to existing IoT devices, Ambient IoT devices offer many advantages, including no power supply, no maintenance, small size, low complexity, low cost, and a long lifespan.

[0071] Zero-power IoT can be used in at least four scenarios:

[0072] (1) Object recognition, such as logistics, production line product management, and supply chain management;

[0073] (2) Environmental monitoring, such as temperature, humidity, and harmful gas monitoring of the working environment and natural environment;

[0074] (3) Positioning, such as indoor positioning, intelligent object search, and production line item positioning;

[0075] (4) Intelligent control, such as intelligent control of various electrical appliances in smart homes (turning on and off air conditioners, adjusting temperature), and intelligent control of various facilities in agricultural greenhouses (automatic irrigation and fertilization).

[0076] Ambient IoT devices:

[0077] In New Radio (NR) and Wi-Fi systems, the power-free and low-cost nature of devices enables low-cost, large-scale deployment and maintenance-free IoT devices. Current standards are exploring how to support ambient energy-based IoT devices in NR and Wi-Fi systems. These devices, known as Ambient IoT devices, operate by harvesting ambient energy from sources such as wireless signals, solar energy, and thermal energy. These devices are similar to passive or semi-passive devices in zero-power communications.

[0078] A research project on Ambient IoT devices has been carried out in the 3GPP RAN. Ambient IoT devices are roughly divided into three types: Device A, Device B, and Device C, each with corresponding complexity and communication capabilities.

[0079] Device A: does not have energy storage capabilities and cannot send independent signals, that is, it uses backscatter transmission;

[0080] Device B: It has energy storage capability but cannot transmit independent signals. In other words, it uses backscatter transmission to amplify the backscattered signal using the stored energy.

[0081] Device C: has energy storage capability and can send independent signals, that is, has active transmission capability.

[0082] Device A has the lowest complexity and power consumption, reaching as low as 1μW. However, its communication range is limited, typically only a few meters. Device A requires a carrier signal from a network device for backscattering transmission. Device C typically has a large capacitor to store energy from the environment, consumes several hundred μW, can support active signal transmission, and has a longer communication range. Because Device C can perform active transmission, it does not require a carrier signal from a network device. Device B's complexity and power consumption are between those of Device A and Device C.

[0083] Physical Uplink Control Channel (PUCCH) power control in NR:

[0084] In the NR Uu interface, the transmit power of the PUCCH is determined by the following formula:

[0085] Where i represents the PUCCH index, P CMAX,f,c (i) is the maximum transmit power of the terminal device in the serving cell c of carrier f, b is the bandwidth part (BWP) index, PO_PUCCH,b,f,c (q u ) is the target received power, is the transmission bandwidth of PUCCH, PL b,f,c (q d ) is the path loss reference signal q d The measured path loss value, Δ F_PUCCH (F) is the adjustment value related to the PUCCH format, Δ TF,b,f,c (i) is the compensation factor related to the PUCCH code rate, g b,f,c (i, l) is the closed-loop power control adjustment state adopted by the closed-loop power control.

[0086] Specifically, P O_PUCCH,b,f,c (q u )=P O_NOMINAL_PUCCH +P O_UE_PUCCH (q u ), P O_NOMINAL_PUCCH P is the configuration parameter of the Radio Resource Control (RRC) layer (not configured to 0). O_UE_PUCCH (q u ) is a parameter determined according to the PUCCH spatial related information indication PUCCH-SpatialRelationInfo. d If pathlossReferenceRSs is not configured, the synchronization signal block (SSB) carrying the master information block (MIB) is used as the q d If pathlossReferenceRSs is configured, the reference signal in PUCCH-PathlossReferenceRS is indexed by PUCCHPathlossReferenceRS-Id in PUCCH-SpatialRelationInfo as q d If PUCCH does not have space-related information indication, then q d It is the reference signal with index 0 in PUCCH-PathlossReferenceRS.

[0087] Closed-loop power control adjustment status l∈{0,1} represents the power control process index, which is determined by the closedLoopIndex in the PUCCH-SpatialRelationInfo. If there is no PUCCH spatial indication information, l=0. i) represents the number of power control commands received by the terminal within a specific range, C(C i ) is defined by the standard. δPUCCH,b,f,c(m,l) represents the power adjustment value indicated in the mth power control command for power process l. If the current transmit power has reached the maximum transmit power and the accumulated value is positive, or has reached the minimum transmit power and the accumulated value is negative, power is no longer accumulated.

[0088] Δ F_PUCCH (F) is the offset value configured by RRC for each PUCCH format (0 if not configured).

[0089] FIG1 shows a schematic diagram of a communication system provided by an exemplary embodiment of the present application. The communication system includes a network device 110 , an intermediate terminal device 120 , and an Internet of Things device 130 .

[0090] The network device 110 in the present application provides wireless communication functions, and the network device 110 includes but is not limited to: Evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (e.g., Home Evolved Node B, or Home Node B, HNB), Baseband Unit (BBU), Access Point (AP) in Wireless Fidelity (Wi-Fi) system, Wireless Relay Node, Wireless Backhaul Node, Transmission Point (TP) or Transmission and Reception Point (TRP), etc., and can also be a fifth generation (5G) th Next Generation Node B (gNB) or Transmission Point (TRP or TP) in a 5G mobile communication system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or transmission point, such as a baseband unit (BBU) or a distributed unit (DU), or a Beyond Fifth Generation (B5G) mobile communication system, a 6G (6G) mobile communication system, or a 5G mobile communication system. thThe present invention relates to base stations in 6G (6th Generation) mobile communication systems, or core networks (CN), fronthaul, backhaul, radio access networks (RAN), network slices, etc., or service cells, primary cells (Pcell), primary secondary cells (PSCell), special cells (SpCell), secondary cells (Scell), and neighboring cells of terminal devices.

[0091] The intermediate terminal device 120 in this application may also be referred to as an intermediate node. The intermediate terminal device 120 may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminals include, but are not limited to, handheld devices, wearable devices, vehicle-mounted devices, and Internet of Things devices, such as mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (MIDs), augmented reality (AR) terminals, virtual reality (VR) terminals, and mixed reality (MR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, wireless terminals in remote medical surgery, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loops (WLANs), and wireless terminals in industrial control. Loop (WLL) stations, personal digital assistants (PDA), TV set-top boxes (STB), customer premises equipment (CPE), etc.

[0092] Intermediate terminal device 120 and network device 110 communicate with each other via an air interface technology, such as a Uu interface. For example, there are two communication scenarios between intermediate terminal device 120 and network device 110: uplink communication and downlink communication. Uplink communication refers to signals sent from intermediate terminal device 120 to network device 110; downlink communication refers to signals sent from network device 110 to intermediate terminal device 120.

[0093] The IoT device 130 in this application may also be referred to as an Ambient IoT device or a zero-power device. In related art, bidirectional communication exists between the intermediate terminal device 120 and the IoT device 130. The intermediate terminal device 120 transmits a carrier wave to the IoT device 130, transmits data and / or signals to the IoT device 130, and receives data and / or signals reflected by the zero-power device.

[0094] In an embodiment of the present application, the intermediate terminal device 120 may be one or more. In the case where there is only one intermediate terminal device 120, the communication between the intermediate terminal device 120 and the network device 110, and the communication between the intermediate terminal device 120 and the Internet of Things device 130, are as shown in Figure 1 above. In the case where there are multiple intermediate terminal devices 120, as shown in Figure 2, the first intermediate terminal device 121 and the network device 110 communicate with each other through a certain air interface technology, such as a Uu interface; the first intermediate terminal device 121 and the Internet of Things device 130 communicate in a one-way manner, and the first intermediate terminal device 121 sends at least one of a carrier, data, or signal to the Internet of Things device 130. The second intermediate terminal device 122 and the network device 110 communicate with each other through a certain air interface technology, such as a Uu interface; the second intermediate terminal device 122 and the Internet of Things device 130 communicate in a one-way manner, and the second intermediate terminal device 122 receives data or signals fed back by the Internet of Things device 130.

[0095] In some embodiments, while the intermediate terminal device 120 is transmitting at least one of a carrier wave, data, or a signal to the IoT device 130, other terminal devices may simultaneously be transmitting data or signals to the network device 110. In this case, how to prevent the intermediate terminal device 130 from interfering with other data transmissions when transmitting at least one of the carrier wave, data, or signal is an urgent problem to be solved.

[0096] To address the above issues, an embodiment of the present application proposes a transmit power control method. By controlling the transmit power of an intermediate terminal device, the method minimizes interference with other data transmissions caused by the intermediate terminal device when transmitting at least one of a carrier, data, or signal. Figure 3 shows a flow chart of a transmit power control method provided by an exemplary embodiment of the present application. The method is performed by a first intermediate terminal device / first intermediate node. In the embodiment of the present application, the first intermediate node is used for illustration. The method includes:

[0097] Step 220: Determine the transmit power based on the first power control parameter.

[0098] In some embodiments, the first power control parameter is sent by the network device to the first intermediate node. The first power control parameter is used to instruct the first intermediate node to determine a transmit power when transmitting at least one of a carrier, data, or signal to the IoT device. In the embodiments of the present application, the IoT device is an Ambient IoT device.

[0099] In some embodiments, the first power control parameter indicates the transmit power of a carrier wave transmitted by the first intermediate node to the IoT device. It is understood that a carrier wave is a radio wave, such as a sine wave, used to carry a signal. Exemplarily, the carrier wave transmitted by the first intermediate node to the IoT device does not carry data.

[0100] In some embodiments, the first power control parameter is used to indicate a transmission power when the first intermediate node transmits data to the IoT device. Optionally, the data includes at least one of data information and control information.

[0101] In some embodiments, the first power control parameter is used to indicate the transmission power when the first intermediate node sends a signal to the Internet of Things device. Optionally, the signal can be understood as a reference signal or a pilot signal. Optionally, the signal and the data sent by the first intermediate node to the Internet of Things device occupy the same time-frequency resource unit during the transmission process, or it can be understood that the signal and the data sent by the first intermediate node to the Internet of Things device are carried on the same transmission resource at the same time. Optionally, the signal and the data sent by the first intermediate node to the Internet of Things device occupy different time-frequency resource units during the transmission process, or it can be understood that the signal and the data sent by the first intermediate node to the Internet of Things device are carried on different transmission resources, that is, the signal and the data sent by the first intermediate node to the Internet of Things device are sent separately. In the embodiment of the present application, the example of the synchronous transmission of the signal and the data sent by the first intermediate node to the Internet of Things device is used for illustration.

[0102] In some embodiments, the above method further includes: receiving a first power control parameter.

[0103] In some embodiments, the first power control parameter includes at least one of the following:

[0104] Open-loop power control parameters; Closed-loop power control parameters.

[0105] Optionally, the first power control parameter is an open-loop power control parameter. This open-loop power control parameter is configured by the network device, which helps reduce the signaling overhead of the network device sending the closed-loop power control parameter and facilitates flexible adjustment of transmit power by the intermediate node. When the first power control parameter is the open-loop power control parameter, the first intermediate node determines the transmit power when transmitting at least one of the carrier, data, or signal to the IoT device based on the open-loop power control parameter.

[0106] Optionally, the first power control parameter is a closed-loop power control parameter. The closed-loop power control parameter can help the network device dynamically adjust the transmit power of the first intermediate node. When the first power control parameter is the closed-loop power control parameter, the first intermediate node determines the transmit power when transmitting at least one of the carrier, data, or signal to the IoT device based on the closed-loop power control parameter.

[0107] In some embodiments, the transmission power is the power used when the first intermediate node transmits at least one of a carrier, data, or a signal to the IoT device.

[0108] To sum up, the method provided in this embodiment determines the transmission power when the first intermediate node sends at least one of the carrier, data or signal to the Internet of Things device through the first power control parameter. On the one hand, it can ensure the performance of the first intermediate node sending at least one of the carrier, data or signal to the Internet of Things device. On the other hand, by controlling the transmission power, it is beneficial to reduce the interference of the first intermediate node to other data transmissions when sending at least one of the carrier, data or signal.

[0109] For open-loop power control parameters:

[0110] In some embodiments, the above step 220 can be replaced by the following sub-steps:

[0111] Step 221: Determine the transmit power based on the open-loop power control parameters.

[0112] In some embodiments, the open loop power control parameters are configurable by the network device.

[0113] In some embodiments, the method further includes receiving an open-loop power control parameter. For example, as shown in FIG4 , network device 110 transmits the open-loop power control parameter to first intermediate node 121. Upon receiving the open-loop power control parameter, first intermediate node 121 determines a transmit power for transmitting at least one of a carrier, data, or signal. Based on the determined transmit power, first intermediate node 121 transmits at least one of the carrier, data, or signal to IoT device 130.

[0114] In some embodiments, the open-loop power control parameter includes at least one of the following:

[0115] The first maximum transmit power when transmitting a carrier; the second maximum transmit power when transmitting data and signals; the third maximum transmit power when transmitting data; the fourth maximum transmit power when transmitting signals; the path loss compensation factor; the basic operating point of the transmit power; the basic operating point of the transmit power based on the downlink path loss; the basic operating point of the transmit power based on the path loss of the IoT link.

[0116] In some embodiments, the open-loop power control parameter includes a first maximum transmit power when transmitting the carrier. The network device sends the configured first maximum transmit power when transmitting the carrier to the first intermediate node.

[0117] In some embodiments, the method further includes receiving a first maximum transmit power, wherein the first maximum transmit power is used to indicate that when the first intermediate node transmits a carrier wave to the IoT device, the power of the carrier wave transmitted must be less than or equal to the first maximum transmit power.

[0118] In some embodiments, the open-loop power control parameter includes a second maximum transmit power when transmitting data and signals. The network device sends the configured second maximum transmit power when transmitting data and signals to the first intermediate node.

[0119] In some embodiments, the method further includes receiving a second maximum transmit power, wherein the second maximum transmit power is used to indicate that when the first intermediate node transmits data and signals to the IoT device, the power of transmitting the data and signals needs to be less than or equal to the second maximum transmit power.

[0120] In some embodiments, the open-loop power control parameter includes a third maximum transmit power when transmitting data. The network device sends the configured third maximum transmit power when transmitting data to the first intermediate node.

[0121] In some embodiments, the method further includes: receiving a third maximum transmit power, wherein the third maximum transmit power is used to indicate that when the first intermediate node sends data to the IoT device, the power of transmitting the data must be less than or equal to the third maximum transmit power.

[0122] In some embodiments, the open-loop power control parameter includes a fourth maximum transmit power when transmitting a signal. The network device sends the configured fourth maximum transmit power when transmitting a signal to the first intermediate node. Optionally, the signal includes a reference signal (RS).

[0123] In some embodiments, the method further includes: receiving a fourth maximum transmit power, wherein the fourth maximum transmit power is used to indicate that when the first intermediate node sends a signal to the IoT device, the power of the signal sent must be less than or equal to the fourth maximum transmit power.

[0124] It should be understood that the data sent by the above-mentioned first intermediate node to the IoT device, and the signal sent by the first intermediate node to the IoT device, can be understood as being carried by the first intermediate node in the same data resource and sent to the IoT device. In the embodiment of the present application, sending data or sending signals or sending data and signals are collectively referred to as "sending data and / or signals" for explanation. The second maximum transmission power when sending data and signals, the third maximum transmission power when sending data, and the fourth maximum transmission power when sending signals can be collectively referred to as "maximum transmission power when sending data and / or signals."

[0125] In some embodiments, the open-loop power control parameter includes a path loss compensation factor. The path loss compensation factor is used to indicate the degree of compensation of the first intermediate node for the path loss. Optionally, the value of the path loss compensation factor is 0 or 0.4 or 0.5 or 0.6 or 0.7 or 0.8 or 0.9 or 1. Optionally, the path loss compensation factor includes a downlink path loss compensation factor and / or an IoT link path loss compensation factor. Among them, the downlink path loss compensation factor is used to indicate the degree of compensation of the first intermediate node for the downlink path loss, and the IoT link path loss compensation factor is used to indicate the degree of compensation of the first intermediate node for the IoT link path loss.

[0126] In some embodiments, the open-loop power control parameter includes a basic operating point of the transmit power, which includes a basic operating point of the transmit power based on a downlink path loss and / or a basic operating point of the transmit power based on a path loss of an IoT link.

[0127] In some embodiments, the bidirectional communication between the first intermediate node and the IoT device includes at least one of the following:

[0128] Case 1: The first intermediate node sends data and / or signals to the IoT device, and receives data and / or signals reflected by the IoT device;

[0129] Case 2: The first intermediate node sends a carrier wave, data and / or signals to the IoT device, and receives data and / or signals reflected by the IoT device.

[0130] For situation one:

[0131] In some embodiments, when a first intermediate node transmits data and / or signals to an IoT device and receives data and / or signals reflected by the IoT device, the open-loop power control parameters are configured solely for the first intermediate node by the network device. That is, the signaling of the open-loop power control parameters configured by the network device for transmitting data and / or signals from the first intermediate node to the IoT device is different from the signaling of the open-loop power control parameters corresponding to other uplink transmissions configured by the network device.

[0132] For example, the first embodiment corresponding to the first situation is:

[0133] In some embodiments, the first intermediate node determines the power of any channel transmitted to the IoT device based on the same set of open-loop power control parameters configured by the network device, and the first intermediate node performs open-loop power control based only on the downlink path loss. In this case, the open-loop power control parameters include at least one of the following:

[0134] The second maximum transmit power when sending data and signals; the path loss compensation factor; the basic operating point of the transmit power.

[0135] Specifically, the first intermediate node determines the transmission power of the data and / or signal according to the following formula: A-IoT =min(P CMAX ,P0+α·PL D +f)[dBm]

[0136] Among them, P A-IoT represents the transmission power of the first intermediate node for transmitting data and / or signals; P CMAX Indicates the maximum transmit power when sending data and / or signals; P0 indicates the basic operating point of transmit power; α indicates the path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node, and f is a power adjustment value determined according to a power control parameter configured in the network device. In some embodiments, when there is no closed-loop power control, the value of f is 0.

[0137] For example, the second embodiment corresponding to the first embodiment:

[0138] In some embodiments, the first intermediate node determines the power of any channel transmitted to the IoT device based on the same set of open-loop power control parameters configured by the network device. The first intermediate node performs open-loop power control based on the downlink path loss and the measured path loss on the IoT link. In this case, the open-loop power control parameters include at least one of the following:

[0139] Second maximum transmit power when sending data and signals; downlink path loss compensation factor; IoT link path loss compensation factor; basic operating point of transmit power based on downlink path loss; basic operating point of transmit power based on IoT link path loss. An IoT link refers to a link between an intermediate node and an IoT device, such as the link between the first node and the IoT device.

[0140] Specifically, the first intermediate node determines the transmission power of the data and / or signal according to the following formula: A-IoT =min(P CMAX ,min(P 0,D +αD ·PL D ,P 0,A +α A PL A )+f)[dBm]

[0141] Among them, P A-IoT represents the transmission power of the first intermediate node for transmitting data and / or signals; P CMAX Indicates the maximum transmission power when sending data and / or signals; P 0,D represents the basic operating point of the transmit power based on the downlink path loss; α D represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; P 0,A represents the basic operating point of the transmit power based on the path loss of the IoT link; α A represents the IoT link path loss compensation factor; PL A represents the direct path loss between the first intermediate node and the IoT device; f is a power adjustment value determined according to a power control parameter configured in the network device. In some embodiments, when there is no closed-loop power control, the value of f is 0.

[0142] In some embodiments, the first intermediate node measures the direct path loss between the first intermediate node and the IoT device based on the data or signal received from the IoT device. A The value of PL is determined according to the following formula: A =PP r

[0143] Where P represents the transmission power of the IoT device. In general, P is a constant value or a preset value. r Indicates the average received power of the IoT device measured by the first intermediate node.

[0144] For example, the third embodiment corresponding to the first scenario is as follows:

[0145] In some embodiments, the first intermediate node determines the power of a corresponding channel transmitted to the IoT device based on open-loop power control parameters for different channels or signals configured by the network device. The first intermediate node performs open-loop power control based at least on downlink path loss. In some embodiments, the channel includes at least one of a control signal, a data channel, and a synchronization signal transmitted by the first intermediate node to the IoT device.

[0146] At this time, the open-loop power control parameter includes at least one of the following:

[0147] Second maximum transmit power when sending data and signals; downlink path loss compensation factor; IoT link path loss compensation factor; basic operating point of transmit power based on downlink path loss; basic operating point of transmit power based on IoT link path loss.

[0148] In some embodiments, the first intermediate node performs open-loop power control based only on the downlink path loss, and the first intermediate node determines the transmit power of the data and / or signal according to the following formula: A-IoT =min(P CMAX ,P 0,D,C +α D,C PL D +f)[dBm]

[0149] Among them, P A-IoT represents the transmission power of the first intermediate node for transmitting data and / or signals; P CMAX Indicates the maximum transmission power when sending data and / or signals; P 0,D,C represents the basic operating point of the transmit power based on the downlink path loss; α D,C represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; f is the power adjustment value determined according to the power control parameters configured in the network device. When there is no closed-loop power control, the value of f is 0.

[0150] In some embodiments, the first intermediate node performs open-loop power control based on the downlink path loss and the IoT link path loss, and the first intermediate node determines the transmit power of the data and / or signal according to the following formula: A-IoT,C =min(P CMAX ,min(P 0,D,C +α D,C PL D ,P 0,A,C +α A,C PL A )+f)[dBm]

[0151] Among them, P A-IoT represents the transmission power of the first intermediate node for transmitting data and / or signals; P CMAX Indicates the maximum transmission power when sending data and / or signals; P 0,D,C represents the basic operating point of the transmit power based on the downlink path loss; α D,C represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; P 0,A,C represents the basic operating point of the transmit power based on the path loss of the IoT link; α A,Crepresents the IoT link path loss compensation factor; PL A represents the direct path loss between the first intermediate node and the IoT device; f is a power adjustment value determined according to a power control parameter configured in the network device. In some embodiments, when there is no closed-loop power control, the value of f is 0.

[0152] In some embodiments, the first intermediate node measures the direct path loss between the first intermediate node and the IoT device based on the data or signal received from the IoT device. A The value of PL is determined according to the following formula: A =PP r

[0153] Where P represents the transmission power of the IoT device. In general, P is a constant value or a preset value. r Indicates the average received power of the IoT device measured by the first intermediate node.

[0154] The method provided in this embodiment enables the first intermediate node to determine the transmission power when sending data and / or signals to the Internet of Things device through an open-loop power control parameter configured based on the network device for instructing the first intermediate node to send data and / or signals to the Internet of Things device, thereby ensuring that the impact on other data transmission processes can be minimized when sending data and / or signals to the Internet of Things device.

[0155] For situation 2:

[0156] In some embodiments, when the first intermediate node transmits a carrier wave, transmits data and / or signals to an IoT device, and receives data and / or signals reflected from the IoT device, the open-loop power control parameters are configured solely for the first intermediate node by the network device. That is, the signaling of the open-loop power control parameters for the first intermediate node transmitting a carrier wave and transmitting data and / or signals to the IoT device, as configured by the network device, is different from the signaling of the open-loop power control parameters corresponding to other uplink transmissions, as configured by the network device.

[0157] For example, the second scenario corresponds to the first embodiment:

[0158] The first intermediate node determines the power of the carrier and any channels transmitted to the IoT device based on the same set of open-loop power control parameters configured by the network device. The first intermediate node performs open-loop power control based only on the downlink path loss. In this case, the open-loop power control parameters include at least one of the following:

[0159] The first maximum transmit power when transmitting a carrier; the second maximum transmit power when transmitting data and signals; the path loss compensation factor; the basic operating point of the transmit power.

[0160] Specifically, the first intermediate node determines the transmission power of the data and / or signal according to the following formula: A-IoT =min(P CMAX ,P0+α·PL D +f)[dBm]

[0161] Among them, P A-IoT represents the transmission power of the first intermediate node for transmitting data and / or signals; P CMAX Indicates the maximum transmit power when sending data and / or signals; P0 indicates the basic operating point of transmit power; α indicates the path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; f is a power adjustment value determined according to the power control parameters configured in the network device. In some embodiments, when there is no closed-loop power control, the value of f is 0.

[0162] Specifically, the first intermediate node determines the transmission power of the transmission carrier according to the following formula: A-IoT,cw =min(P CMAX1 ,P0+α·PL D +Δ+f cw )[dBm]

[0163] Among them, P A-IoT,cw P represents the transmission power of the carrier transmitted by the first intermediate node; CMAX1 represents the first maximum transmission power when transmitting the carrier; P0 represents the basic operating point of the transmission power; α represents the path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; Δ represents the offset value of the carrier relative to the transmission power of data and / or signal; f cw In some embodiments, Δ is configured by the network device. In some embodiments, when the network device is not configured, Δ=0.

[0164] For example, the second embodiment corresponding to the second situation is as follows:

[0165] In some embodiments, the first intermediate node determines the power of the carrier and any channel transmitted to the IoT device based on the same set of open-loop power control parameters configured by the network device. The first intermediate node performs open-loop power control based on the downlink path loss and the measured path loss on the IoT link. In this case, the open-loop power control parameters include at least one of the following:

[0166] The first maximum transmit power when transmitting a carrier; the second maximum transmit power when transmitting data and signals; the downlink path loss compensation factor; the IoT link path loss compensation factor; the basic operating point of the transmit power based on the downlink path loss; the basic operating point of the transmit power based on the path loss of the IoT link.

[0167] Specifically, the first intermediate node determines the transmission power of the data and / or signal according to the following formula: A-IoT =min(P CMAX ,min(P 0,D +α D PL D ,P 0,A +α A PL A )+f)[dBm]

[0168] Among them, P A-IoT represents the transmission power of the first intermediate node for transmitting data and / or signals; P CMAX Indicates the maximum transmission power when sending data and / or signals; P 0,D represents the basic operating point of the transmit power based on the downlink path loss; α D represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; P 0,A represents the basic operating point of the transmit power based on the path loss of the IoT link; α A represents the IoT link path loss compensation factor; PL A represents the direct path loss between the first intermediate node and the IoT device; f is a power adjustment value determined according to a power control parameter configured in the network device. In some embodiments, when there is no closed-loop power control, the value of f is 0.

[0169] In some embodiments, the first intermediate node measures the direct path loss between the first intermediate node and the IoT device based on the data or signal received from the IoT device. A The value of PL is determined according to the following formula: A =PP r

[0170] Where P represents the transmission power of the IoT device. In general, P is a constant value or a preset value. r Indicates the average received power of the IoT device measured by the first intermediate node.

[0171] Specifically, the first intermediate node determines the transmission power of the transmission carrier according to the following formula: A-IoT,cw =min(P CMAX1 ,min(P0,D +α D PL D ,P 0,A +α A PL A )+Δ+f cw )[dBm]

[0172] Among them, P A-IoT,cw P represents the transmission power of the carrier transmitted by the first intermediate node; CMAX1 Indicates the first maximum transmission power when transmitting the carrier; P 0,D represents the basic operating point of the transmit power based on the downlink path loss; α D represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; P 0,A represents the basic operating point of the transmit power based on the path loss of the IoT link; α A represents the IoT link path loss compensation factor; PL A represents the direct path loss between the first intermediate node and the IoT device; Δ represents the offset value of the carrier relative to the transmission power of data and / or signal; f cw In some embodiments, Δ is configured by the network device. In some embodiments, when the network device is not configured, Δ=0.

[0173] For example, the third embodiment corresponding to the second scenario is as follows:

[0174] In some embodiments, the first intermediate node determines the power of the carrier and any channel transmitted to the IoT device based on open-loop power control parameters for different channels or signals configured by the network device. The first intermediate node performs open-loop power control based at least on downlink path loss. In some embodiments, the channel includes at least one of a control signal, a data channel, and a synchronization signal transmitted by the first intermediate node to the IoT device.

[0175] At this time, the open-loop power control parameter includes at least one of the following:

[0176] The first maximum transmit power when transmitting a carrier; the second maximum transmit power when transmitting data and signals; the downlink path loss compensation factor; the IoT link path loss compensation factor; the basic operating point of the transmit power based on the downlink path loss; the basic operating point of the transmit power based on the path loss of the IoT link.

[0177] In some embodiments, the first intermediate node performs open-loop power control based only on the downlink path loss, and the first intermediate node determines the transmit power of the data and / or signal according to the following formula:A-IoT =min(P CMAX ,P 0,D,C +α D,C PL D +f)[dBm]

[0178] Among them, P A-IoT represents the transmission power of the first intermediate node for transmitting data and / or signals; P CMAX Indicates the maximum transmission power when sending data and / or signals; P 0,D,C represents the basic operating point of the transmit power based on the downlink path loss; α D,C represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; f is a power adjustment value determined according to the power control parameters configured in the network device. In some embodiments, when there is no closed-loop power control, the value of f is 0.

[0179] The first intermediate node determines the transmission power of the carrier according to the following formula: A-IoT,cw =min(P CMAX1 ,P 0,D,C +α D,C PL D +f cw )[dBm]

[0180] Among them, P A-IoT,cw P represents the transmission power of the carrier transmitted by the first intermediate node; CMAX1 Indicates the first maximum transmission power when transmitting the carrier; P 0,D,C represents the basic operating point of the transmit power based on the downlink path loss; α D,C represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; f cw Indicates the power adjustment value determined according to the power control parameter for the carrier sent by the network device.

[0181] In some embodiments, the first intermediate node performs open-loop power control based on the downlink path loss and the IoT link path loss, and the first intermediate node determines the transmit power of the data and / or signal according to the following formula: A-IoT,C =min(P CMAX ,min(P 0,D,C +α D,C PL D ,P 0,A,C +α A,C PL A )+f)[dBm]

[0182] Among them, P A-IoTrepresents the transmission power of the first intermediate node for transmitting data and / or signals; P CMAX Indicates the maximum transmission power when sending data and / or signals; P 0,D,C represents the basic operating point of the transmit power based on the downlink path loss; α D,C represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; P 0,A,C represents the basic operating point of the transmit power based on the path loss of the IoT link; α A,C represents the IoT link path loss compensation factor; PL A represents the direct path loss between the first intermediate node and the IoT device; f is a power adjustment value determined according to a power control parameter configured in the network device. In some embodiments, when there is no closed-loop power control, the value of f is 0.

[0183] In some embodiments, the first intermediate node measures the direct path loss between the first intermediate node and the IoT device based on the data or signal received from the IoT device. A The value of PL is determined according to the following formula: A =PP r

[0184] Where P represents the transmission power of the IoT device. In general, P is a constant value or a preset value. r Indicates the average received power of the IoT device measured by the first intermediate node.

[0185] The first intermediate node determines the transmission power of the carrier according to the following formula: A-IoT,cw =min(P CMAX1 ,min(P 0,D,C +α D,C PL D ,P 0,A,C +α A,C ·PL A )+f cw )[dBm]

[0186] Among them, P A-IoT,cw P represents the transmission power of the carrier transmitted by the first intermediate node; CMAX1 Indicates the first maximum transmission power when transmitting the carrier; P 0,D,C represents the basic operating point of the transmit power based on the downlink path loss; α D,C represents the downlink path loss compensation factor; PL D represents the downlink path loss measured by the first intermediate node; P 0,A,C represents the basic operating point of the transmit power based on the path loss of the IoT link; αA,C represents the IoT link path loss compensation factor; PL A represents the direct path loss between the first intermediate node and the IoT device; f cw Indicates the power adjustment value determined according to the power control parameter for the carrier sent by the network device.

[0187] The method provided in this embodiment enables the first intermediate node to determine the transmission power when sending a carrier, and sending data and / or signals to the IoT device through open-loop power control parameters configured based on the network device for instructing the first intermediate node to send a carrier, and send data and / or signals to the IoT device, thereby ensuring that the impact on other data transmission processes can be minimized when sending a carrier, and sending data and / or signals to the IoT device.

[0188] For closed-loop power control parameters:

[0189] In some embodiments, the above step 220 may also be replaced by the following sub-steps:

[0190] Step 222: Determine the transmit power based on the closed-loop power control parameters.

[0191] In some embodiments, the closed-loop power control parameters are indicated by the network device via a power control command.

[0192] In some embodiments, the above method further includes: receiving a power control command. The power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for the transmit power. Exemplarily, as shown in FIG5 , the first intermediate node 121 transmits at least one of a carrier, data, or signal. Based on at least one of the carrier, data, or signal transmitted by the first intermediate node 121, the network device 110 determines to send a power control command associated with at least one of the carrier, data, or signal to the first intermediate node 121, the power control command being used to indicate a closed-loop power control parameter to the first intermediate node 121. The first intermediate node 121 determines the transmit power of at least one of the carrier, data, or signal transmitted to the IoT device based on the closed-loop power control parameter indicated by the power control command. The first intermediate node 121 transmits at least one of the carrier, data, or signal to the IoT device 130 based on the determined transmit power.

[0193] In some embodiments, the power control command includes at least one of the following:

[0194] a first power control command associated with the carrier;

[0195] a second power control command associated with the data and the signal;

[0196] a third power control command associated with the carrier, the data, and the signal;

[0197] a fourth power control command associated with the data;

[0198] A fifth power control command is associated with the signal.

[0199] In some embodiments, the power control command includes a first power control command associated with a carrier, wherein the first power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for transmitting a transmission power of the carrier.

[0200] In some embodiments, the power control command includes a second power control command associated with the data and the signal, wherein the second power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for transmitting power of the data and the signal.

[0201] In some embodiments, the power control command includes a third power control command associated with the carrier, data, and signal, wherein the third power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for transmitting the carrier and the transmit power of the data and / or signal.

[0202] In some embodiments, the power control command includes a fourth power control command associated with the data, wherein the fourth power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for transmitting power of the data.

[0203] In some embodiments, the power control command includes a fifth power control command associated with the signal, wherein the fifth power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for transmitting power of the transmitted signal.

[0204] It should be understood that the data sent by the above-mentioned first intermediate node to the IoT device and the signal sent by the first intermediate node to the IoT device can be understood as being carried by the first intermediate node in the same data resource and sent to the IoT device. In the embodiment of the present application, sending data or sending signals or sending data and signals are collectively referred to as "sending data and / or signals" for explanation. The second power control command associated with the data and signal, the fourth power control command associated with the data, and the fifth power control command associated with the signal can be collectively referred to as "power control command associated with data and / or signal".

[0205] In some embodiments, the network device sends the power control command via downlink control signaling (DCI).

[0206] Optionally, the DCI may be a DCI for the network device to schedule the first intermediate node to send a carrier, or a DCI for the network device to schedule the first intermediate node to send data and / or signals.

[0207] In some embodiments, when the DCI is a DCI in which the network device schedules the first intermediate node to transmit a carrier, or is a DCI in which the network device schedules the first intermediate node to transmit data and / or signals, the manner in which the network device transmits the power control command through the DCI includes at least one of the following:

[0208] Method 1: The network device schedules the first intermediate node to send a carrier through different DCIs, and schedules the first intermediate node to send data and / or signals. For example, the network device schedules the first intermediate node to send a carrier through the first DCI, and schedules the first intermediate node to send data and / or signals through the second DCI. At this time, the first power control command is carried in the first DCI, and the second power control command is carried in the second DCI. The first DCI is a DCI for scheduling the sending of a carrier, and the second DCI is a DCI for scheduling the sending of data or signals. For example, as shown in Figure 6, the network device 110 carries a first power control command associated with a carrier through the first DCI, and carries a second power control command associated with data and signals through the second DCI.

[0209] Method 2: The network device schedules the first intermediate node to send a carrier, and to send data and / or a signal through the same DCI. For example, the first intermediate node is scheduled to send a carrier, and to send data and / or a signal through the third DCI. At this time, the first power control command and the second control command are carried in the third DCI, or the third power control command is carried in the third DCI. The third DCI is a DCI for scheduling the sending of at least one of the carrier or data or signal. Exemplarily, as shown in FIG7 , the network device 110 carries the first power control command associated with the carrier and the second power control command associated with the data and the signal through the third DCI. Or, exemplarily, as shown in FIG8 , the network device 110 carries the third power control command associated with the carrier, data and the signal through the third DCI.

[0210] In some embodiments, the third DCI is used to allocate transmission resources for a transmission carrier and transmission resources for transmitting data and / or signals to the first intermediate node. The first intermediate node determines the transmission carrier or the transmission data and / or signals.

[0211] In some embodiments, the third DCI indicates, through different bit fields, that the first intermediate node is scheduled to transmit a carrier and to transmit data and / or a signal. For example, the first bit field in the third DCI is used to indicate that the first intermediate node is scheduled to transmit a carrier, and the second bit field in the third DCI is used to indicate that the first intermediate node is scheduled to transmit data and / or a signal. The first bit field and the second bit field are different bit fields in the third DCI.

[0212] In some embodiments, the third DCI indicates, through the same bit field, that the first intermediate node is scheduled to transmit a carrier and to transmit data and / or a signal. For example, the first bit field in the third DCI is used to indicate that the first intermediate node is scheduled to transmit a carrier, and the first bit field is also used to indicate that the first intermediate node is scheduled to transmit data and / or a signal.

[0213] Optionally, the DCI may be a DCI dedicated to sending power control commands, such as DCI format 2-2. The number of bits of the DCI dedicated to sending power control commands is configured by the network device. The Radio Network Temporary Identifier (RNTI) scrambled for the DCI dedicated to sending power control commands is different from the Transmit Power Control-Physical Downlink Shared Channel-RNTI (TPC-PUSCH-RNTI) and TPC-PUCCH-RNTI.

[0214] In some embodiments, when the DCI is dedicated to sending a power control command, the network device sends the power control command through the DCI in at least one of the following ways:

[0215] Method 3: The network device schedules the first intermediate node to send a carrier through data blocks in different DCIs, and schedules the first intermediate node to send data and / or signals. For example, the network device schedules the first intermediate node to send a carrier through the first data block of the fourth DCI, and schedules the first intermediate node to send data and / or signals through the second data block of the fifth DCI. In this case, the first power control command is carried in the first data block of the fourth DCI, and the second power control command is carried in the second data block of the fifth DCI.

[0216] In some embodiments, the number of bits in the first data block is configured by the network device. The number of bits in the second data block is configured by the network device. Optionally, each data block includes two bits. For example, the first data block of the fourth DCI includes two bits, and the second data block of the fifth DCI includes two bits.

[0217] In some embodiments, the first data block is data block m in the fourth DCI, where m is a positive integer and the value of m is configured by the network device. For example, as shown in FIG9 , the fourth DCI is a DCI dedicated to sending a power control command, and the fourth DCI includes at least one data block. The network device carries the first power control command associated with the carrier through data block m (also referred to as the mth data block) in the fourth DCI.

[0218] In some embodiments, the second data block is data block n in the fifth DCI, where the value of n is a positive integer and the value of n is configured by the network device.

[0219] In some embodiments, the fourth DCI and the fifth DCI are scrambled using different RNTIs, wherein the RNTI used to scramble the fourth DCI is different from the TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI, and the RNTI used to scramble the fifth DCI is different from the TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI.

[0220] Method 4: The network device schedules the first intermediate node to transmit a carrier, as well as data and / or signals, using a data block in the same DCI. For example, the first intermediate node is scheduled to transmit a carrier, as well as data and / or signals, using the third data block of the sixth DCI. In this case, the first power control command and the second power control command are carried in the third data block of the sixth DCI, or the third power control command is carried in the third data block of the sixth DCI.

[0221] In some embodiments, the number of bits of the third data block is configured by the network device. Optionally, the third data block includes two bits. Optionally, the third data block includes three bits, and the three bits include an indication bit. When the indication bit has a first value, the bits in the third data block other than the indication bit carry a first power control command; when the indication bit has a second value, the bits in the third data block other than the indication bit carry a second power control command. For example, when the value of the indication bit is 0, the bits in the third data block other than the indication bit carry a first power control command; when the value of the indication bit is 1, the bits in the third data block other than the indication bit carry a second power control command. When the value of the indication bit is 1, the bits in the third data block other than the indication bit carry a first power control command; when the value of the indication bit is 0, the bits in the third data block other than the indication bit carry a second power control command.

[0222] In some embodiments, the third data block is the data block p in the sixth DCI, where the value of p is a positive integer and the value of p is configured by the network device.

[0223] In some embodiments, the RNTI used to scramble the sixth DCI is different from the TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI.

[0224] In some embodiments, the network device schedules the first intermediate node to transmit a carrier and to transmit data and / or signals using different data blocks in different DCIs. Alternatively, the network device schedules the first intermediate node to transmit a carrier and to transmit data and / or signals using the same data block in different DCIs.

[0225] The method provided in this embodiment can realize the separate control of the transmission power of the transmitting carrier and the transmission power of the transmitting data and / or signal, because the interference of the carrier and the data and / or signal sent by the first intermediate node to the uplink reception of the network device may be different, and the method of determining the transmission power based on the closed-loop power control parameter can realize the separate control of the transmission power of the transmitting carrier and the transmission power of the transmitting data and / or signal.

[0226] In some embodiments, when there are at least two intermediate nodes, the transmit power of the first intermediate node is determined based on the first power control parameter and the power control parameters transmitted by the other intermediate nodes other than the first intermediate node. In the embodiment of the present application, two intermediate nodes are used as an example for illustration. The above step 220 can also be replaced by the following sub-steps:

[0227] Step 223: Determine the transmit power based on the first power control parameter and the second power control parameter sent by the second intermediate node.

[0228] In some embodiments, the first power control parameter is described in detail in steps 220 to 222 above.

[0229] In some embodiments, the second power control parameter sent by the second intermediate node includes at least one of the following:

[0230] The sixth power control command; the path loss between the first intermediate node and the second intermediate node; the fifth maximum transmit power when the first intermediate node sends a carrier; the sixth maximum transmit power when the first intermediate node sends data and signals; the seventh maximum transmit power when the first intermediate node sends data; and the eighth maximum transmit power when the first intermediate node sends signals.

[0231] In some embodiments, the second power control parameter sent by the second intermediate node includes a sixth power control command. The sixth power control command is a power control command sent by the second intermediate node to the first intermediate node.

[0232] In some embodiments, the method further includes: receiving a sixth power control command, wherein the sixth power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for the transmit power.

[0233] In some embodiments, the second power control parameter sent by the second intermediate node includes a path loss between the first intermediate node and the second intermediate node, where the path loss indicates the degree to which the first intermediate node compensates for the path loss between the first intermediate node and the second intermediate node.

[0234] In some embodiments, the second power control parameter sent by the second intermediate node includes the fifth maximum transmit power when the first intermediate node transmits a carrier. The second intermediate node sends the configured fifth maximum transmit power when transmitting a carrier to the first intermediate node.

[0235] In some embodiments, the method further includes: receiving a fifth maximum transmit power, wherein the fifth maximum transmit power is used to indicate that when the first intermediate node transmits a carrier wave to the IoT device, the power of the carrier wave transmitted must be less than or equal to the fifth maximum transmit power.

[0236] In some embodiments, the second power control parameter sent by the second intermediate node includes a sixth maximum transmit power when the first intermediate node sends data and signals. The second intermediate node sends the configured sixth maximum transmit power when sending data and signals to the first intermediate node.

[0237] In some embodiments, the method further includes receiving a sixth maximum transmit power, wherein the sixth maximum transmit power is used to indicate that when the first intermediate node sends data and signals to the IoT device, the power of the data and signals sent must be less than or equal to the sixth maximum transmit power.

[0238] In some embodiments, the second power control parameter sent by the second intermediate node includes the seventh maximum transmit power when the first intermediate node sends data. The second intermediate node sends the configured seventh maximum transmit power when sending data to the first intermediate node.

[0239] In some embodiments, the method further includes: receiving a seventh maximum transmit power, wherein the seventh maximum transmit power is used to indicate that when the first intermediate node sends data to the IoT device, the power of transmitting the data needs to be less than or equal to the seventh maximum transmit power.

[0240] In some embodiments, the second power control parameter sent by the second intermediate node includes an eighth maximum transmit power when the first intermediate node sends a signal. The second intermediate node sends the configured eighth maximum transmit power when sending a signal to the first intermediate node.

[0241] In some embodiments, the method further includes: receiving an eighth maximum transmit power, wherein the eighth maximum transmit power is used to indicate that when the first intermediate node sends a signal to the IoT device, the power of the signal sent must be less than or equal to the eighth maximum transmit power.

[0242] It should be understood that the data sent by the above-mentioned first intermediate node to the IoT device, and the signal sent by the first intermediate node to the IoT device, can be understood as being carried by the first intermediate node in the same data resource and sent to the IoT device. In the embodiment of the present application, sending data or sending signals or sending data and signals are collectively referred to as "sending data and / or signals" for explanation. The sixth maximum transmission power when sending data and signals, the seventh maximum transmission power when sending data, and the eighth maximum transmission power when sending signals can be collectively referred to as "maximum transmission power when sending data and / or signals."

[0243] To sum up, the method provided in this embodiment determines the transmission power based on the first power control parameter and the second power control parameter sent by the second intermediate node, so that the first intermediate node can take into account the network device and other intermediate nodes at the same time when sending at least one of the carrier, data or signal to the Internet of Things device, which is beneficial to further ensure the performance of the first intermediate node sending at least one of the carrier, data or signal to the Internet of Things device, and is beneficial to further reduce the interference of the first intermediate node to other data transmission when sending at least one of the carrier, data or signal.

[0244] FIG10 shows a flow chart of a transmit power control method provided by an exemplary embodiment of the present application. The method is performed by a first intermediate terminal device / first intermediate node. The method includes:

[0245] Step 320: Adjust the transmit power based on the second power control parameter sent by the second intermediate node.

[0246] In some embodiments, the first power control parameter is described in detail in steps 220 to 222 above.

[0247] In some embodiments, the second power control parameter sent by the second intermediate node includes at least one of the following:

[0248] The sixth power control command; the path loss between the first intermediate node and the second intermediate node; the fifth maximum transmit power when the first intermediate node sends a carrier; the sixth maximum transmit power when the first intermediate node sends data and signals; the seventh maximum transmit power when the first intermediate node sends data; and the eighth maximum transmit power when the first intermediate node sends signals.

[0249] Specifically, the second power control parameter is described in detail in step 223 above.

[0250] For example, as shown in FIG11 , network device 110 sends a first power control parameter to first intermediate node 121, and second intermediate node 122 sends a second power control parameter to the first intermediate node. First intermediate node 121 determines a transmit power for transmitting at least one of a carrier wave, data, or a signal based on the first and second power control parameters. First intermediate node 121 transmits at least one of the carrier wave, data, or signal to IoT device 130 based on the determined transmit power.

[0251] To sum up, the method provided in this embodiment adjusts the transmission power based on the second power control parameter sent by the second intermediate node, so that the first intermediate node can take into account the network device and other intermediate nodes at the same time when sending at least one of the carrier, data or signal to the Internet of Things device, which is beneficial to further ensure the performance of the first intermediate node sending at least one of the carrier, data or signal to the Internet of Things device, and is beneficial to further reduce the interference of the first intermediate node to other data transmission when sending at least one of the carrier, data or signal.

[0252] FIG12 shows a flow chart of a transmit power control method provided by an exemplary embodiment of the present application. The method is executed by a network device. The method includes:

[0253] Step 420: Send a first power control parameter.

[0254] In some embodiments, the first power control parameter is sent by the network device to the first intermediate node. The first power control parameter is used to instruct the first intermediate node to determine a transmit power when transmitting at least one of a carrier, data, or signal to the IoT device. In the embodiments of the present application, the IoT device is an Ambient IoT device.

[0255] In some embodiments, the first power control parameter indicates the transmit power of a carrier wave transmitted by the first intermediate node to the IoT device. It is understood that a carrier wave is a radio wave, such as a sine wave, used to carry a signal. Exemplarily, the carrier wave transmitted by the first intermediate node to the IoT device does not carry data.

[0256] In some embodiments, the first power control parameter is used to indicate a transmission power when the first intermediate node transmits data to the IoT device. Optionally, the data includes at least one of data information and control information.

[0257] In some embodiments, the first power control parameter is used to indicate the transmission power when the first intermediate node sends a signal to the Internet of Things device. Optionally, the signal can be understood as a reference signal or a pilot signal. Optionally, the signal and the data sent by the first intermediate node to the Internet of Things device occupy the same time-frequency resource unit during the transmission process, or it can be understood that the signal and the data sent by the first intermediate node to the Internet of Things device are carried on the same transmission resource at the same time. Optionally, the signal and the data sent by the first intermediate node to the Internet of Things device occupy different time-frequency resource units during the transmission process, or it can be understood that the signal and the data sent by the first intermediate node to the Internet of Things device are carried on different transmission resources, that is, the signal and the data sent by the first intermediate node to the Internet of Things device are sent separately. In the embodiment of the present application, the example of the synchronous transmission of the signal and the data sent by the first intermediate node to the Internet of Things device is used for illustration.

[0258] In some embodiments, the first power control parameter includes at least one of the following:

[0259] Open-loop power control parameters; Closed-loop power control parameters.

[0260] Optionally, the first power control parameter is an open-loop power control parameter. This open-loop power control parameter is configured by the network device, which helps reduce the signaling overhead of the network device sending the closed-loop power control parameter and facilitates flexible adjustment of transmit power by the intermediate node. When the first power control parameter is the open-loop power control parameter, the first intermediate node determines the transmit power when transmitting at least one of the carrier, data, or signal to the IoT device based on the open-loop power control parameter.

[0261] Optionally, the first power control parameter is a closed-loop power control parameter. The closed-loop power control parameter can help the network device dynamically adjust the transmit power of the first intermediate node. When the first power control parameter is the closed-loop power control parameter, the first intermediate node determines the transmit power when transmitting at least one of the carrier, data, or signal to the IoT device based on the closed-loop power control parameter.

[0262] In some embodiments, the transmission power is the power used when the first intermediate node transmits at least one of a carrier, data, or a signal to the IoT device.

[0263] To sum up, the method provided in this embodiment enables the first intermediate node to determine the transmission power when sending at least one of the carrier, data or signal to the Internet of Things device by sending the first power control parameter to the first intermediate node. On the one hand, it can ensure the performance of the first intermediate node in sending at least one of the carrier, data or signal to the Internet of Things device. On the other hand, by controlling the transmission power, it is beneficial to reduce the interference of the first intermediate node to other data transmissions when sending at least one of the carrier, data or signal.

[0264] For open-loop power control parameters:

[0265] In some embodiments, the above step 420 can be replaced by the following sub-steps:

[0266] Step 421: Send open-loop power control parameters.

[0267] In some embodiments, the open-loop power control parameter is configured by the network device and is used to instruct the first intermediate node to determine the transmission power.

[0268] In some embodiments, the open-loop power control parameter includes at least one of the following:

[0269] The first maximum transmit power when transmitting a carrier; the second maximum transmit power when transmitting data and signals; the third maximum transmit power when transmitting data; the fourth maximum transmit power when transmitting signals; the path loss compensation factor; the basic operating point of the transmit power; the basic operating point of the transmit power based on the downlink path loss; the basic operating point of the transmit power based on the path loss of the IoT link.

[0270] Specifically, for details on how to implement the open-loop power control parameters, please refer to the embodiments for the open-loop power control parameters.

[0271] For closed-loop power control parameters:

[0272] In some embodiments, the above step 420 can be replaced by the following sub-steps:

[0273] Step 422: Send closed-loop power control parameters.

[0274] In some embodiments, the closed-loop power control parameter is indicated by the network device through a power control command. The closed-loop power control parameter is used to instruct the first intermediate node to determine the transmission power.

[0275] In some embodiments, the power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for transmit power.

[0276] In some embodiments, the power control command includes at least one of the following:

[0277] A first power control command associated with a carrier; a second power control command associated with data and a signal; a third power control command associated with the carrier, data, and a signal; a fourth power control command associated with data; and a fifth power control command associated with a signal.

[0278] Specifically, for details on how to implement the closed-loop power control parameters, please refer to the embodiments for the closed-loop power control parameters.

[0279] In some embodiments, when there are at least two intermediate nodes, the transmit power of the first intermediate node is determined based on the first power control parameter and the power control parameters transmitted by other intermediate nodes other than the first intermediate node. In the embodiments of the present application, two intermediate nodes are used as an example for illustration. Figure 13 shows a flow chart of a transmit power control method provided by an exemplary embodiment of the present application. The method is performed by a second intermediate terminal device / second intermediate node. The method includes:

[0280] Step 520: Send a second power control parameter.

[0281] In some embodiments, the second power control parameter includes at least one of the following:

[0282] The sixth power control command; the path loss between the first intermediate node and the second intermediate node; the fifth maximum transmit power when the first intermediate node sends a carrier; the sixth maximum transmit power when the first intermediate node sends data and signals; the seventh maximum transmit power when the first intermediate node sends data; and the eighth maximum transmit power when the first intermediate node sends signals.

[0283] Specifically, the implementation method of the second power control parameter is detailed in the above step 223.

[0284] FIG14 shows a block diagram of a transmission power control device provided by an exemplary embodiment of the present application. The device includes:

[0285] The determination module 1410 is configured to determine the transmit power based on the first power control parameter.

[0286] In some embodiments, the first power control parameter is sent by a network device to the apparatus. The first power control parameter is used to instruct the apparatus to determine a transmit power when transmitting at least one of a carrier wave, data, or signal to the IoT device. In the embodiments of the present application, the IoT device is an Ambient IoT device as an example.

[0287] In some embodiments, the first power control parameter indicates the transmit power of the apparatus when transmitting a carrier wave to the IoT device. It is understood that a carrier wave is a radio wave, such as a sine wave, used to carry a signal. Exemplarily, the carrier wave transmitted by the first intermediate node to the IoT device does not carry data.

[0288] In some embodiments, the first power control parameter is used to indicate a transmit power when the apparatus transmits data to the IoT device. Optionally, the data includes at least one of data information and control information.

[0289] In some embodiments, the first power control parameter is used to indicate the transmission power of the device when sending a signal to the Internet of Things device. Optionally, the signal can be understood as a reference signal or a pilot signal. Optionally, the signal and the data sent by the device to the Internet of Things device occupy the same time-frequency resource unit during the transmission process, or it can be understood that the signal and the data sent by the device to the Internet of Things device are carried on the same transmission resource at the same time. Optionally, the signal and the data sent by the device to the Internet of Things device occupy different time-frequency resource units during the transmission process, or it can be understood that the signal and the data sent by the device to the Internet of Things device are carried on different transmission resources, that is, the signal and the data sent by the device to the Internet of Things device are sent separately. In the embodiment of the present application, the example of the synchronous transmission of the signal and the data sent by the device to the Internet of Things device is used for illustration.

[0290] In some embodiments, the apparatus further comprises:

[0291] The receiving module 1420 is configured to receive a first power control parameter.

[0292] In some embodiments, the first power control parameter includes at least one of the following:

[0293] Open-loop power control parameters; Closed-loop power control parameters.

[0294] Optionally, the first power control parameter is an open-loop power control parameter. This open-loop power control parameter is configured by the network device, which helps reduce the signaling overhead of the network device sending the closed-loop power control parameter and facilitates flexible adjustment of transmit power by intermediate nodes. When the first power control parameter is the open-loop power control parameter, the apparatus determines the transmit power when transmitting at least one of the carrier, data, or signal to the IoT device based on the open-loop power control parameter.

[0295] Optionally, the first power control parameter is a closed-loop power control parameter. The closed-loop power control parameter can help the network device dynamically adjust the transmit power of the apparatus. When the first power control parameter is the closed-loop power control parameter, the apparatus determines the transmit power when transmitting at least one of a carrier, data, or a signal to the IoT device based on the closed-loop power control parameter.

[0296] In some embodiments, the transmission power is the power used when the apparatus transmits at least one of a carrier wave, data, or a signal to an IoT device.

[0297] For open-loop power control parameters:

[0298] The determination module 1410 is further configured to determine the transmit power based on the open-loop power control parameter.

[0299] In some embodiments, the open loop power control parameters are configurable by the network device.

[0300] The receiving module 1420 is further configured to receive an open-loop power control parameter. The open-loop power control parameter includes at least one of the following:

[0301] The first maximum transmit power when transmitting a carrier; the second maximum transmit power when transmitting data and signals; the third maximum transmit power when transmitting data; the fourth maximum transmit power when transmitting signals; the path loss compensation factor; the basic operating point of the transmit power; the basic operating point of the transmit power based on the downlink path loss; the basic operating point of the transmit power based on the path loss of the IoT link.

[0302] Specifically, for details on how to implement the open-loop power control parameters, please refer to the embodiments for the open-loop power control parameters.

[0303] For closed-loop power control parameters:

[0304] The determination module 1410 is further configured to determine the transmit power based on the closed-loop power control parameter.

[0305] In some embodiments, the closed-loop power control parameters are indicated by the network device via a power control command.

[0306] The receiving module 1420 is further configured to receive a power control command, wherein the power control command is used to instruct the apparatus to determine a closed-loop power control parameter for transmit power.

[0307] In some embodiments, the power control command includes at least one of the following:

[0308] A first power control command associated with a carrier; a second power control command associated with data and a signal; a third power control command associated with the carrier, data, and a signal; a fourth power control command associated with data; and a fifth power control command associated with a signal.

[0309] Specifically, for details on how to implement the closed-loop power control parameters, please refer to the embodiments for the closed-loop power control parameters.

[0310] In some embodiments, when there are at least two intermediate nodes, the transmit power of the device is determined based on the first power control parameter and the power control parameters transmitted by other intermediate nodes other than the device. In the embodiment of the present application, two intermediate nodes are used as an example for illustration.

[0311] The determination module 1410 is further configured to determine the transmit power based on the first power control parameter and the second power control parameter sent by the second intermediate node.

[0312] In some embodiments, the apparatus further comprises:

[0313] The adjustment module 1430 is configured to adjust the transmission power based on the first power control parameter and the second power control parameter sent by the second intermediate node.

[0314] In some embodiments, the first power control parameter is described in detail in steps 220 to 222 above.

[0315] In some embodiments, the second power control parameter sent by the second intermediate node includes at least one of the following:

[0316] The sixth power control command; the path loss between the device and the second intermediate node; the fifth maximum transmission power when the device sends a carrier; the sixth maximum transmission power when the device sends data and signals; the seventh maximum transmission power when the device sends data; and the eighth maximum transmission power when the device sends signals.

[0317] Specifically, the implementation method of the second power control parameter is detailed in the above step 223.

[0318] In some embodiments, the apparatus further comprises:

[0319] The sending module 1440 is configured to send at least one of a carrier, data, or a signal.

[0320] It should be noted that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0321] FIG15 shows a block diagram of a transmission power control device provided by an exemplary embodiment of the present application. The device includes:

[0322] The sending module 1510 is configured to send a first power control parameter.

[0323] In some embodiments, the first power control parameter is sent by the apparatus to the first intermediate node. The first power control parameter is used to instruct the first intermediate node to determine a transmit power when transmitting at least one of a carrier, data, or signal to the IoT device. In the embodiments of the present application, the IoT device is an Ambient IoT device.

[0324] In some embodiments, the first power control parameter indicates the transmit power of a carrier wave transmitted by the first intermediate node to the IoT device. It is understood that a carrier wave is a radio wave, such as a sine wave, used to carry a signal. Exemplarily, the carrier wave transmitted by the first intermediate node to the IoT device does not carry data.

[0325] In some embodiments, the first power control parameter is used to indicate a transmission power when the first intermediate node transmits data to the IoT device. Optionally, the data includes at least one of data information and control information.

[0326] In some embodiments, the first power control parameter is used to indicate the transmission power when the first intermediate node sends a signal to the Internet of Things device. Optionally, the signal can be understood as a reference signal or a pilot signal. Optionally, the signal and the data sent by the first intermediate node to the Internet of Things device occupy the same time-frequency resource unit during the transmission process, or it can be understood that the signal and the data sent by the first intermediate node to the Internet of Things device are carried on the same transmission resource at the same time. Optionally, the signal and the data sent by the first intermediate node to the Internet of Things device occupy different time-frequency resource units during the transmission process, or it can be understood that the signal and the data sent by the first intermediate node to the Internet of Things device are carried on different transmission resources, that is, the signal and the data sent by the first intermediate node to the Internet of Things device are sent separately. In the embodiment of the present application, the example of the synchronous transmission of the signal and the data sent by the first intermediate node to the Internet of Things device is used for illustration.

[0327] In some embodiments, the first power control parameter includes at least one of the following:

[0328] Open-loop power control parameters; Closed-loop power control parameters.

[0329] Optionally, the first power control parameter is an open-loop power control parameter. This open-loop power control parameter is configured by the device, which helps reduce the signaling overhead of the device transmitting the closed-loop power control parameter and facilitates flexible adjustment of transmit power by the intermediate node. When the first power control parameter is the open-loop power control parameter, the first intermediate node determines the transmit power when transmitting at least one of the carrier, data, or signal to the IoT device based on the open-loop power control parameter.

[0330] Optionally, the first power control parameter is a closed-loop power control parameter. The closed-loop power control parameter can help the apparatus dynamically adjust the transmit power of the first intermediate node. When the first power control parameter is the closed-loop power control parameter, the first intermediate node determines the transmit power when transmitting at least one of a carrier, data, or a signal to the IoT device based on the closed-loop power control parameter.

[0331] In some embodiments, the transmission power is the power used when the first intermediate node transmits at least one of a carrier, data, or a signal to the IoT device.

[0332] For open-loop power control parameters:

[0333] The sending module 1510 is further configured to send open-loop power control parameters.

[0334] In some embodiments, the open-loop power control parameter is configured by the apparatus and is used to instruct the first intermediate node to determine the transmission power.

[0335] In some embodiments, the open-loop power control parameter includes at least one of the following:

[0336] The first maximum transmit power when transmitting a carrier; the second maximum transmit power when transmitting data and signals; the third maximum transmit power when transmitting data; the fourth maximum transmit power when transmitting signals; the path loss compensation factor; the basic operating point of the transmit power; the basic operating point of the transmit power based on the downlink path loss; the basic operating point of the transmit power based on the path loss of the IoT link.

[0337] Specifically, for details on how to implement the open-loop power control parameters, please refer to the embodiments for the open-loop power control parameters.

[0338] For closed-loop power control parameters:

[0339] The sending module 1510 is further configured to send closed-loop power control parameters.

[0340] In some embodiments, the closed-loop power control parameter is indicated by the apparatus through a power control command. The closed-loop power control parameter is used to instruct the first intermediate node to determine the transmission power.

[0341] In some embodiments, the power control command is used to instruct the first intermediate node to determine a closed-loop power control parameter for transmit power.

[0342] In some embodiments, the power control command includes at least one of the following:

[0343] A first power control command associated with a carrier; a second power control command associated with data and signals; a third power control command associated with carriers, data and signals; a fourth power control module associated with data; and a fifth power control module associated with signals.

[0344] Specifically, for details on how to implement the closed-loop power control parameters, please refer to the embodiments for the closed-loop power control parameters.

[0345] FIG16 shows a block diagram of a transmission power control device provided by an exemplary embodiment of the present application. The device includes:

[0346] The sending module 1610 is configured to send a second power control parameter.

[0347] In some embodiments, the second power control parameter includes at least one of the following:

[0348] The sixth power control command; the path loss between the first intermediate node and the device; the fifth maximum transmission power when the first intermediate node sends a carrier; the sixth maximum transmission power when the first intermediate node sends data and signals; the seventh maximum transmission power when the first intermediate node sends data; and the eighth maximum transmission power when the first intermediate node sends signals.

[0349] Specifically, the implementation method of the second power control parameter is detailed in the above step 223.

[0350] FIG17 is a block diagram of a communication device (terminal device or network device) provided in one embodiment of the present application. The communication device may include: a processor 1701 , a receiver 1702 , a transmitter 1703 , a memory 1704 , and a bus 1705 .

[0351] The processor 1701 includes one or more processing cores. The processor 1701 executes various functional applications and information processing by running software programs and modules.

[0352] The receiver 1702 and the transmitter 1703 may be implemented as a transceiver 1706 , which may be a communication chip.

[0353] The memory 1704 is connected to the processor 1701 via a bus 1705. The memory 1704 can be used to store computer programs, and the processor 1701 is used to execute the computer programs to implement the various steps performed by the terminal device or network device in the above method embodiment.

[0354] In addition, the memory 1704 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: random-access memory (RAM) and read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other solid-state storage technology, compact disc read-only memory (CD-ROM), high-density digital video disc (DVD) or other optical storage, tape cassettes, magnetic tape, disk storage or other magnetic storage devices.

[0355] An embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored. The computer program is executed by a processor of a terminal device or a network device to implement each step in the above-mentioned transmission power control method.

[0356] In some embodiments, the computer-readable storage medium may include: ROM, RAM, solid state drives (SSDs), or optical disks, etc. Among them, the random access memory may include resistance random access memory (ReRAM) and dynamic random access memory (DRAM).

[0357] An embodiment of the present application also provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip runs on a terminal or a network device, it is used to implement each step in the above-mentioned transmission power control method.

[0358] An embodiment of the present application also provides a computer program product or computer program, which includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the terminal device or network device reads and executes the computer instructions from the computer-readable storage medium to implement the various steps in the above-mentioned transmission power control method.

[0359] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0360] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A transmission power control method, characterized in that, The method is executed by a first intermediate node, and the method includes: Determining a transmission power based on a first power control parameter, where the transmission power is the power when transmitting at least one of a carrier, data, or a signal to an Internet of Things device.

2. The method according to claim 1, characterized in that, The determining the transmission power based on the first power control parameter includes: determining the transmission power based on an open-loop power control parameter.

3. The method according to claim 2, wherein The open-loop power control parameter includes at least one of the following: A first maximum transmission power when transmitting the carrier; a second maximum transmission power when transmitting the data and the signal; a third maximum transmission power when transmitting the data; a fourth maximum transmission power when transmitting the signal; A path loss compensation factor; a basic operating point of the transmission power; a basic operating point of the transmission power based on the downlink path loss; a basic operating point of the transmission power based on the path loss of the Internet of Things link, where the Internet of Things link is the link between the first intermediate node and the Internet of Things device.

4. The method according to claim 2 or 3, characterized in that, The open-loop power control parameter is configured by a network device.

5. The method according to claim 1, characterized in that, The determining the transmission power based on the first power control parameter includes: determining the transmission power based on a closed-loop power control parameter.

6. The method according to claim 5, characterized in that, The closed-loop power control parameter is indicated by the network device through a power control command.

7. The method according to claim 6, characterized in that, The power control command includes at least one of the following: A first power control command associated with the carrier; a second power control command associated with the data and the signal; a third power control command associated with the carrier, the data, and the signal; a fourth power control command associated with the data; a fifth power control command associated with the signal.

8. The method according to claim 7, wherein The first power control command is carried in a first downlink control information DCI, and the second power control command is carried in a second DCI; or, The first power control command and the second control command are carried in a third DCI; or, The third power control command is carried in a third DCI; wherein, the first DCI is a DCI for scheduling the transmission of the carrier, the second DCI is a DCI for scheduling the transmission of the data or the signal, and the third DCI is a DCI for scheduling the transmission of the carrier or the data or the signal.

9. The method according to claim 8, wherein The first power control command is carried in a first data block of a fourth DCI, and the second power control command is carried in a second data block of a fifth DCI; or, The first power control command or the second control command is carried in a third data block of a sixth DCI; or, The third power control command is carried in a third data block of a sixth DCI; wherein, the fourth DCI, the fifth DCI, and the sixth DCI are DCIs dedicated to transmitting power control commands.

10. The method according to claim 9, characterized in that The third data block includes indication bits, When the indication bits take a first value, the bits in the third data block other than the indication bits carry the first power control command; In the case where the indication bit takes a second value, the bits in the third data block other than the indication bit carry the second power control command.

11. The method according to claim 9, characterized in that, The fourth DCI and the fifth DCI are scrambled with different radio network temporary identifiers (RNTIs).

12. The method according to claim 9, characterized in that, The RNTI used to scramble any one of the fourth DCI, the fifth DCI, and the sixth DCI is different from the TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI.

13. The method according to claim 9, characterized in that, The number of bits of the first data block, the second data block, and the third data block is configured by the network device.

14. The method according to claim 1, characterized in that Determining the transmission power based on the first power control parameter includes: Determining the transmission power based on the first power control parameter and the second power control parameter sent by the second intermediate node.

15. The method according to claim 1, wherein The method further includes: Adjusting the transmission power based on the second power control parameter sent by the second intermediate node.

16. The method according to claim 14 or 15, characterized in that, The second power control parameter sent by the second intermediate node includes at least one of the following: The sixth power control command; the path loss between the first intermediate node and the second intermediate node; the fifth maximum transmission power when the first intermediate node transmits the carrier; the sixth maximum transmission power when the first intermediate node transmits the data and the signal; the seventh maximum transmission power when the first intermediate node transmits the data; the eighth maximum transmission power when the first intermediate node transmits the signal. The method is executed by a network device, and the method includes:

17. A transmission power control method, characterized in that, Sending a first power control parameter, which is used to instruct a first intermediate node to determine a transmission power, where the transmission power is the power when the first intermediate node transmits at least one of a carrier, data, or a signal to an Internet of Things device. Sending the first power control parameter includes:

18. The method according to claim 17, characterized in that, Sending an open-loop power control parameter, which is used to instruct the first intermediate node to determine the transmission power. The open-loop power control parameter includes at least one of the following: the first maximum transmission power when the first intermediate node transmits the carrier; the second maximum transmission power when the first intermediate node transmits the data and the signal; the third maximum transmission power when the first intermediate node transmits the data; the fourth maximum transmission power when the first intermediate node transmits the signal; 19. The method according to claim 18, characterized in that, A path loss compensation factor; a basic operating point of the transmission power; a basic operating point of the transmission power based on the downlink path loss; a basic operating point of the transmission power based on the path loss of the Internet of Things link, where the Internet of Things link is the link between the first intermediate node and the Internet of Things device. The open-loop power control parameter is configured by the network device.

20. The method according to claim 18 or 19, characterized in that, Sending the first power control parameter includes:

21. The method according to claim 17, wherein Sending a closed-loop power control parameter, which is used to instruct the first intermediate node to determine the transmission power. The closed-loop power control parameter is indicated by the network device through a power control command.

22. The method according to claim 21, wherein The power control command includes at least one of the following:

23. The method according to claim 22, wherein ​ The first power control command associated with the carrier; the second power control command associated with the data and the signal; the third power control command associated with the carrier, the data and the signal; the fourth power control command associated with the data; the fifth power control command associated with the signal.

24. The method according to claim 23, wherein The first power control command is carried in the first DCI, and the second power control command is carried in the second DCI; or, The first power control command and the second control command are carried in the third DCI; or, The third power control command is carried in the third DCI; Wherein, the first DCI is the DCI for scheduling the transmission of the carrier, the second DCI is the DCI for scheduling the transmission of the data or the signal, and the third DCI is the DCI for scheduling the transmission of the carrier or the data or the signal.

25. The method according to claim 24, wherein, The first power control command is carried in the first data block of the fourth DCI, and the second power control command is carried in the second data block of the fifth DCI; or, The first power control command or the second control command is carried in the third data block of the sixth DCI; or, The third power control command is carried in the third data block of the sixth DCI; Wherein, the fourth DCI, the fifth DCI, and the sixth DCI are DCIs dedicated to transmitting power control commands.

26. The method according to claim 25, wherein The third data block includes indication bits, When the indication bit takes the first value, the bits other than the indication bit in the third data block carry the first power control command; When the indication bit takes the second value, the bits other than the indication bit in the third data block carry the second power control command.

27. The method according to claim 25, characterized in that, The fourth DCI and the fifth DCI are scrambled with different RNTIs.

28. The method according to claim 25, wherein The RNTI used to scramble any one of the fourth DCI, the fifth DCI, and the sixth DCI is different from the TPC-PUSCH-RNTI and the TPC-PUCCH-RNTI.

29. The method according to claim 25, wherein The number of bits of the first data block, the second data block, and the third data block is configured by the network device.

30. A transmission power control method, characterized in that, The method is executed by a second intermediate node, and the method includes: Sending second power control parameters, where the second power control parameters are used to determine the transmission power of the first intermediate node together with the first power control parameters, or the second power control parameters are used to adjust the transmission power determined based on the first power control parameters; Wherein, the transmission power is the power when the first intermediate node sends at least one of a carrier, data, or a signal to the Internet of Things device.

31. The method according to claim 30, wherein The second power control parameter includes at least one of the following: a sixth power control command; the path loss between the first intermediate node and the second intermediate node; the fifth maximum transmission power when the first intermediate node transmits the carrier; the sixth maximum transmission power when the first intermediate node transmits the data and the signal; the seventh maximum transmission power when the first intermediate node transmits the data; the eighth maximum transmission power when the first intermediate node transmits the signal.

32. A transmission power control device, characterized in that, The device includes: a determination module, configured to determine a transmission power based on a first power control parameter, where the transmission power is the power when transmitting at least one of a carrier, data, or a signal to an Internet of Things device.

33. A transmission power control device, characterized in that, The device includes: a transmission module, configured to transmit a first power control parameter, where the first power control parameter is used to instruct a first intermediate node to determine a transmission power, and the transmission power is the power when the first intermediate node transmits at least one of a carrier, data, or a signal to an Internet of Things device.

34. A transmission power control device, characterized in that, The device includes: a transmission module, configured to transmit a second power control parameter, where the second power control parameter is used to determine the transmission power of the first intermediate node in combination with the first power control parameter, or the second power control parameter is used to adjust the transmission power determined based on the first power control parameter; wherein the transmission power is the power when the first intermediate node transmits at least one of a carrier, data, or a signal to an Internet of Things device.

35. A terminal device, characterized in that, The terminal device includes a processor; wherein: the processor is configured to determine a transmission power based on a first power control parameter, where the transmission power is the power when transmitting at least one of a carrier, data, or a signal to an Internet of Things device.

36. A terminal device, characterized in that, The terminal device includes a processor and a transceiver connected to the processor; wherein: the transceiver is configured to transmit a second power control parameter, where the second power control parameter is used to determine the transmission power of the first intermediate node in combination with the first power control parameter, or the second power control parameter is used to adjust the transmission power determined based on the first power control parameter; wherein the transmission power is the power when the first intermediate node transmits at least one of a carrier, data, or a signal to an Internet of Things device.

37. A network device, characterized in that, The network device includes a processor and a transceiver connected to the processor; wherein: the transceiver is configured to transmit a first power control parameter, where the first power control parameter is used to instruct a first intermediate node to determine a transmission power, and the transmission power is the power when the first intermediate node transmits at least one of a carrier, data, or a signal to an Internet of Things device.

38. A computer-readable storage medium, characterized in that, A computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the transmission power control method according to any one of claims 1 to 31 above.

39. A chip, characterized in that, The chip includes programmable logic circuits and / or program instructions, and when the chip runs on a terminal or a network device, it is used to implement the transmission power control method according to any one of claims 1 to 31 above.

40. A computer program product, characterized in that, The computer program product includes computer instructions that are stored in a computer-readable storage medium; a processor of a communication device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, so that the communication device implements the transmission power control method described in any one of claims 1 to 31 above.

41. A computer program, characterized in that, The computer program is executed by a processor of a communication device to implement the transmission power control method described in any one of claims 1 to 31 above.

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