Transmit power control method, information sending method, information receiving method and apparatus

Abstract

The present application belongs to the technical field of wireless communications. Disclosed are transmit power control methods, an information sending method, an information receiving method and an apparatus. A transmit power control method of the embodiments of the present application comprises: on the basis of at least one of first information and a first event, a first device determining the transmit power of a first signal, wherein the first signal is a signal sent from the first device to a second device, the first information is information for the first device to control the transmit power of the first signal, and the first event is an event that triggers the first device to adjust the transmit power of the first signal.

Description

Method for transmitting power control, information transmitting method, information receiving method and device

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411013639.3, filed on July 26, 2024, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the technical field of wireless communication, and specifically relates to a method for transmitting power control, an information transmitting method, an information receiving method and a device. BACKGROUND

[0004] In the research of an Ambient Internet of Things (AIoT) system, a deployment scenario is introduced, that is, an AIoT base station (BS) communicates with an AIoT device through an intermediate node. The intermediate node can be a user equipment (UE, also known as a terminal), a repeater, a relay device, or an integrated access backhaul (IAB) node, etc. The AIoT base station can control the intermediate node through air interface signaling or other interfaces, for example, the AIoT base station controls the UE through a new radio (NR) Uu air interface.

[0005] Due to the too small coverage of the intermediate node or the too small propagation coefficient of the AIoT device, the transmission power of the AIoT device is too small, so that the intermediate node cannot detect the AIoT device in the inventory process. Therefore, the intermediate node needs to be able to dynamically adjust its own transmission power, so as to improve the inventory performance. SUMMARY

[0006] Embodiments of the present application provide a method for transmitting power control, an information transmitting method, an information receiving method and a device, which can solve the problem of how to control the transmission power of the intermediate node in the AIoT system.

[0007] In a first aspect, a method for transmitting power control is provided, comprising:

[0008] The first device determines the transmission power of the first signal according to at least one of the first information and the first event;

[0009] The first signal is a signal transmitted by the first device to the second device.

[0010] The first information is information for performing transmission power control of the first signal by the first device.

[0011] The first event is an event triggering the first device to adjust transmission power of the first signal.

[0012] In a second aspect, a transmission power control method is provided, comprising:

[0013] The network node sends first information or configuration information of a first event to the first device;

[0014] The first information is information for performing transmission power control of the first signal by the first device.

[0015] The first signal is a signal transmitted by the first device to a second device.

[0016] The first event is an event triggering the first device to adjust transmission power of the first signal.

[0017] In a third aspect, an information sending method is provided, comprising:

[0018] The first device sends second information to the network node, the second information comprising at least one of:

[0019] Request information requesting the network node to perform transmission power control of the first signal by the first device; the first signal is a signal transmitted by the first device to a second device.

[0020] Quality of a link between the first device and the second device.

[0021] The first device counts or detects or receives a number of the second devices that reply.

[0022] A first event.

[0023] The first event comprises at least one of:

[0024] The first device does not count or detect any or a first preset number of the second devices within a second preset time.

[0025] The first device does not receive any or a second preset number of replies of the second devices within a third preset time.

[0026] Signal power of the second device received by the first device within a fourth preset time is lower than a first threshold or higher than a second threshold.

[0027] The first device receives a proximity awareness request or a positioning request.

[0028] The first device wants to perform proximity awareness or positioning;

[0029] The first device does not inventory or detect any or a third preset number of the second devices that satisfy a proximity awareness threshold or a positioning threshold within a fifth preset time;

[0030] The adjusted transmission power is greater than a maximum transmission power of the first device;

[0031] The adjusted transmission power is less than a minimum transmission power of the first device;

[0032] The first device completes one or more rounds of inventory or query;

[0033] The first device completes proximity awareness or positioning;

[0034] The first device receives an initial transmission power indicated by a network node;

[0035] The first device receives a reset transmission power indicated by a network node.

[0036] In a fourth aspect, a method for receiving information is provided, comprising:

[0037] The network node receives second information sent by the first device, the second information comprising at least one of:

[0038] Request information requesting the network node to control the transmission power of the first signal of the first device; the first signal is a signal sent by the first device to the second device;

[0039] The quality of the link from the first device to the second device;

[0040] The number of the second devices that the first device inventories or detects or receives a reply from;

[0041] A first event;

[0042] The first event comprises at least one of:

[0043] The first device does not inventory or detect any or a first preset number of the second devices within a second preset time;

[0044] The first device does not receive any or a second preset number of replies from the second devices within a third preset time;

[0045] The signal power of the second devices received by the first device within a fourth preset time is lower than a first threshold or higher than a second threshold;

[0046] The first device receives a proximity awareness request or a positioning request;

[0047] The first device wants to perform proximity awareness or positioning;

[0048] The first device does not inventory or detect any or a third preset number of the second devices meeting a proximity awareness threshold or a positioning threshold within a fifth preset time;

[0049] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0050] The adjusted transmission power is less than the minimum transmission power of the first device;

[0051] The first device completes one or more rounds of inventory or query;

[0052] The first device completes proximity awareness or positioning;

[0053] The first device receives an initial transmission power indicated by a network node;

[0054] The first device receives a reset transmission power indicated by a network node.

[0055] In a fifth aspect, a method for transmitting information is provided, comprising:

[0056] The first device transmits proximity awareness information or positioning information to a network node;

[0057] The proximity awareness information or positioning information comprises at least one of:

[0058] The number of second devices that are inventoried by the first device at a target transmission power, or the number of second devices whose replies are successfully received by the first device, or the number of second devices meeting a proximity awareness threshold or a positioning threshold;

[0059] The identity of second devices that are inventoried by the first device at a target transmission power, or the identity of second devices whose replies are successfully received by the first device, or the identity of second devices meeting a proximity awareness threshold or a positioning threshold;

[0060] Whether there is a second device that is inventoried at a target transmission power, or whether there is a second device whose reply is successfully received by the first device, or whether there is an indication of a second device meeting a proximity awareness threshold or a positioning threshold.

[0061] In a sixth aspect, a method for receiving information is provided, comprising:

[0062] The network node receives proximity awareness information or positioning information transmitted by the first device;

[0063] The proximity awareness information or positioning information comprises at least one of:

[0064] a second device that is inventoried by the first device at a target transmission power, or a reply that is successfully received by the first device, or a number of second devices that satisfy a proximity awareness threshold or a positioning threshold;

[0065] an identity of a second device that is inventoried by the first device at a target transmission power, or a reply that is successfully received by the first device, or a number of second devices that satisfy a proximity awareness threshold or a positioning threshold;

[0066] an indication of whether a second device is inventoried at a target transmission power, or whether a reply of a second device is successfully received by the first device, or whether a second device satisfies a proximity awareness threshold or a positioning threshold.

[0067] In a seventh aspect, a transmission power control apparatus is provided, comprising:

[0068] a processing module configured to determine a transmission power of a first signal according to at least one of first information and a first event;

[0069] wherein the first signal is a signal transmitted by a first device to a second device;

[0070] the first information is information used for transmission power control of the first signal by the first device;

[0071] the first event is an event triggering the first device to adjust the transmission power of the first signal.

[0072] In an eighth aspect, a transmission power control apparatus is provided, comprising:

[0073] a sending module configured to send configuration information of the first information or the first event to a first device;

[0074] wherein the first information is information used for transmission power control of a first signal by the first device;

[0075] the first signal is a signal transmitted by the first device to a second device;

[0076] the first event is an event triggering the first device to adjust the transmission power of the first signal.

[0077] In a ninth aspect, an information sending apparatus is provided, comprising:

[0078] a sending module configured to send second information to a network node, the second information comprising at least one of:

[0079] request information requesting the network node to perform transmission power control of a first signal by a first device; the first signal is a signal transmitted by the first device to a second device;

[0080] a quality of a link between the first device and the second device;

[0081] a number of the second devices that the first device counts or detects or receives replies from;

[0082] a first event;

[0083] wherein the first event comprises at least one of:

[0084] the first device does not count or detect any or a first preset number of the second devices within a second preset time;

[0085] the first device does not receive any or a second preset number of replies from the second devices within a third preset time;

[0086] a signal power of the second devices received by the first device within a fourth preset time is lower than a first threshold or higher than a second threshold;

[0087] the first device receives a proximity awareness request or a positioning request;

[0088] the first device wants to perform proximity awareness or positioning;

[0089] the first device does not count or detect any or a third preset number of the second devices that satisfy a proximity awareness threshold or a positioning threshold within a fifth preset time;

[0090] the adjusted transmission power is greater than a maximum transmission power of the first device;

[0091] the adjusted transmission power is less than a minimum transmission power of the first device;

[0092] the first device completes one or more rounds of counting or querying;

[0093] the first device completes proximity awareness or positioning;

[0094] the first device receives an initial transmission power indicated by a network node;

[0095] the first device receives a reset transmission power indicated by a network node.

[0096] In a tenth aspect, an information receiving apparatus is provided, comprising:

[0097] a receiving module configured to receive second information sent by a first device, the second information comprising at least one of:

[0098] request information for requesting the network node to perform first signal transmission power control for the first device, the first signal being a signal transmitted by the first device to a second device;

[0099] a quality of a link between the first device and the second device;

[0100] a number of the second devices that the first device discovers or detects or receives replies from;

[0101] a first event;

[0102] wherein the first event comprises at least one of:

[0103] the first device does not discover or detect any or a first preset number of the second devices within a second preset time;

[0104] the first device does not receive any or a second preset number of replies from the second devices within a third preset time;

[0105] a signal power of the second devices received by the first device within a fourth preset time is lower than a first threshold or higher than a second threshold;

[0106] the first device receives a proximity awareness request or a positioning request;

[0107] the first device wants to perform proximity awareness or positioning;

[0108] the first device does not discover or detect any or a third preset number of the second devices that satisfy a proximity awareness threshold or a positioning threshold within a fifth preset time;

[0109] the adjusted transmission power is greater than a maximum transmission power of the first device;

[0110] the adjusted transmission power is less than a minimum transmission power of the first device;

[0111] the first device completes one or more rounds of discovery or query;

[0112] the first device completes proximity awareness or positioning;

[0113] the first device receives an initial transmission power indicated by a network node;

[0114] the first device receives a reset transmission power indicated by a network node.

[0115] In an eleventh aspect, an information sending apparatus is provided, comprising:

[0116] a sending module configured to send proximity awareness information or positioning information to a network node;

[0117] The proximity sensing information or location information includes at least one of the following:

[0118] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0119] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0120] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0121] In a twelfth aspect, an information receiving device is provided, comprising:

[0122] The receiving module is used to receive proximity sensing information or positioning information sent by the first device;

[0123] The proximity sensing information or location information includes at least one of the following:

[0124] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0125] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0126] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0127] In a thirteenth aspect, a transmission power control device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0128] In a fourteenth aspect, an information transmitting apparatus is provided, the apparatus being configured to perform the steps of the method described in the third aspect, or to implement the steps of the method described in the fifth aspect.

[0129] In a fifteenth aspect, an information receiving apparatus is provided, the apparatus being configured to perform the steps of the method described in the fourth aspect, or to implement the steps of the method described in the sixth aspect.

[0130] In a seventeenth aspect, a communication device is provided, the communication device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the methods described in the first, second, third, fourth, fifth, or sixth aspects.

[0131] Eighteenthly, a communication device is provided, including a processor and a communication interface, wherein the processor is configured to determine the transmission power of a first signal based on at least one of first information and a first event;

[0132] The first signal is a signal sent from the first device to the second device;

[0133] The first information is information used to control the transmission power of the first signal of the first device;

[0134] The first event is an event that triggers the first device to adjust the transmission power of the first signal.

[0135] In a nineteenth aspect, a communication device is provided, including a processor and a communication interface, wherein the communication interface is used to send configuration information of a first information or a first event to a first device;

[0136] Wherein, the first information is information used to control the transmission power of the first signal of the first device;

[0137] The first signal is a signal sent from the first device to the second device;

[0138] The first event is an event that triggers the first device to adjust the transmission power of the first signal.

[0139] In a twentieth aspect, a communication device is provided, including a processor and a communication interface, wherein the communication interface is used to send second information to a network node, the second information including at least one of the following:

[0140] The request information requests the network node to control the transmission power of a first signal of the first device; the first signal is a signal sent by the first device to the second device;

[0141] The quality of the link between the first device and the second device;

[0142] The number of second devices counted, detected, or received a response from the first device;

[0143] First event;

[0144] The first event includes at least one of the following:

[0145] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0146] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0147] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0148] The first device receives a proximity sensing request or a location request;

[0149] The first device aims to perform proximity sensing or localization;

[0150] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0151] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0152] The adjusted transmission power is less than the minimum transmission power of the first device;

[0153] The first device completes one or more rounds of inventory or query;

[0154] The first device completes proximity sensing or positioning;

[0155] The first device receives the initial transmit power indicated by the network node;

[0156] The first device receives an instruction from the network node to reset the transmission power.

[0157] In a twenty-first aspect, a communication device is provided, including a processor and a communication interface, wherein the communication interface is configured to receive second information sent by a first device, the second information including at least one of the following:

[0158] A request message from a network node to control the transmission power of a first signal from the first device; the first signal is a signal sent by the first device to the second device;

[0159] The quality of the link between the first device and the second device;

[0160] The number of second devices counted, detected, or received a response from the first device;

[0161] First event;

[0162] The first event includes at least one of the following:

[0163] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0164] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0165] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0166] The first device receives a proximity sensing request or a location request;

[0167] The first device aims to perform proximity sensing or localization;

[0168] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0169] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0170] The adjusted transmission power is less than the minimum transmission power of the first device;

[0171] The first device completes one or more rounds of inventory or query;

[0172] The first device completes proximity sensing or positioning;

[0173] The first device receives the initial transmit power indicated by the network node;

[0174] The first device receives an instruction from the network node to reset the transmission power.

[0175] In a twentieth aspect, a communication device is provided, including a processor and a communication interface, wherein the communication interface is used to send proximity sensing information or location information to network nodes;

[0176] The proximity sensing information or location information includes at least one of the following:

[0177] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0178] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0179] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0180] In a twentieth aspect, a communication device is provided, including a processor and a communication interface, wherein the communication interface is used to receive proximity sensing information or positioning information sent by a first device;

[0181] The proximity sensing information or location information includes at least one of the following:

[0182] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0183] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0184] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0185] In a twenty-fourth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the methods described in the first, second, third, fourth, fifth, or sixth aspects.

[0186] In a twenty-fifth aspect, a wireless communication system is provided, comprising: a first device and a network node, wherein the first device is configured to perform the steps of the method as described in the first, third, or fifth aspects, and the network node is configured to perform the steps of the method as described in the second, fourth, or sixth aspects.

[0187] In a twenty-sixth aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to run programs or instructions to implement the methods described in the first, second, third, fourth, fifth, or sixth aspects.

[0188] In a twenty-seventh aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the method as described in the first aspect, second aspect, third aspect, fourth aspect, fifth aspect, or sixth aspect.

[0189] In this embodiment of the application, the first device determines the transmission power of the first signal sent to the second device based on at least one of the first information and the first event. That is, the transmission power of the first signal can be dynamically adjusted according to at least one of the first information and the first event, thereby reducing the situation where the second device cannot be detected during the inventory process due to the small coverage area of ​​the first device or the small propagation coefficient of the second device when the first device is an intermediate node, thus improving the performance of the system inventory. Attached Figure Description

[0190] Figure 1 is a block diagram of a wireless communication system applicable to an embodiment of this application;

[0191] Figure 2 is a schematic diagram of one deployment scenario for AIoT;

[0192] Figure 3 is a schematic diagram of another deployment scenario for AIoT;

[0193] Figure 4 is a flowchart illustrating the transmission power control method applied to the first device according to an embodiment of this application;

[0194] Figure 5 is a flowchart illustrating the transmit power control method applied to a network node according to an embodiment of this application;

[0195] Figure 6 is a flowchart illustrating one of the information sending methods according to an embodiment of this application;

[0196] Figure 7 is a flowchart illustrating one of the information receiving methods according to an embodiment of this application;

[0197] Figure 8 is a second schematic flowchart of the information sending method according to an embodiment of this application;

[0198] Figure 9 is a second schematic flowchart of the information receiving method according to an embodiment of this application;

[0199] Figure 10 is a schematic diagram of the transmission power control device according to an embodiment of this application;

[0200] Figure 11 is a second schematic diagram of the transmission power control device according to an embodiment of this application;

[0201] Figure 12 is a schematic diagram of the structure of an information transmission device according to an embodiment of this application;

[0202] Figure 13 is a schematic diagram of the structure of an information receiving device according to an embodiment of this application;

[0203] Figure 14 is a second structural schematic diagram of the information transmission device according to an embodiment of this application;

[0204] Figure 15 is a second schematic diagram of the structure of the information receiving device according to an embodiment of this application;

[0205] Figure 16 is a schematic diagram of the structure of a communication device according to an embodiment of this application;

[0206] Figure 17 is a schematic diagram of the hardware structure of the terminal according to an embodiment of this application;

[0207] Figure 18 is a schematic diagram of the hardware structure of the network-side device according to an embodiment of this application. Detailed Implementation

[0208] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0209] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0210] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0211] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0212] Figure 1 shows a block diagram of a wireless communication system applicable to an embodiment of this application. The wireless communication system includes a network node 11, a first device 12, and a second device 13. The network node 11 may include an access network device, which may also be referred to as a Radio Access Network (RAN) device, a Radio Access Network function, or a Radio Access Network unit. The access network device may include a base station, a Wireless Local Area Network (WLAN) access point (AP), or a Wireless Fidelity (WiFi) node, etc. The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station. The first device 12 can be a read / write device, a handheld or fixed device for reading (and sometimes writing) information from the response device, or a device that communicates with the response device, such as a user equipment (UE, also known as a terminal), repeater, relay, or integrated access backhaul (IAB) node; or the first device can be a device with read / write capabilities, such as a reader.User Equipment (UE) can be a mobile phone, tablet computer, laptop computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. In this context, the vehicle-mounted device can also be referred to as a vehicle-mounted terminal, vehicle-mounted controller, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit, etc. It should be noted that the specific type of UE is not limited in this application embodiment. The second device 13 can be a response device, such as a tag, which can be a Radio Frequency Identification (RFID) tag, a common name for RFID. The RFID technology used in the tag can be divided into three types: active, passive, and semi-active. Passive tags can also be called passive Internet of Things (IoT) devices. Alternatively, some active tags have the ability to actively generate signals, because the energy of the response device can come from the environment, such as ambient radio frequency (RF) energy, heat energy, wind energy, kinetic energy, etc., and can also be called AIoT.

[0213] The technical terms used in this application will be explained below.

[0214] (1) AIoT device types:

[0215] The 3GPP R19 AIoT research characterizes environmental IoT devices based on their energy storage capacity and ability to generate and transmit radio frequency signals. AIoT devices include the following types:

[0216] 1) Device A: No energy storage, no independent signal generation / amplification, i.e., backscatter transmission.

[0217] 2) Device B: It has energy storage but no independent signal generation, i.e., backscatter transmission. The use of stored energy can include amplification of the reflected signal.

[0218] 3) Device C: It has energy storage and independent signal generation, i.e., an active radio frequency component for transmission.

[0219] Devices with different energy storage capacities also affect their transmission quality. Generally, devices with higher energy storage capacity also mean higher receiving sensitivity or higher transmitting power, and the reliability of the receiving or transmitting link can be better guaranteed.

[0220] (2) AIoT business types:

[0221] The main data / service types of AIoT include:

[0222] 1) DO: Device-originated.

[0223] 2) DT: Device-terminated.

[0224] DO and DT data indicate that the data stream originates from or is transmitted to an AIoT device (similar to an RFID tag). For data streams originating from AIoT devices (DO data), this can be further categorized as follows:

[0225] 11) DO-A: DO autonomous, meaning that AIoT devices autonomously initiate data transmission.

[0226] For example, connecting a large number of various sensors that collect and proactively report information about the environment, equipment, and organisms when necessary.

[0227] 12) DO-DTT, DO device-terminated triggered, means that the base station or other reader device triggers the AIoT device to initiate data transmission.

[0228] For example, in asset identification, status reporting, and tracking, reader devices collect data from tags by triggering inventory procedures. Since the data is generated / initiated within the AIoT device, this service should be considered as a DO service initiated by the tag and triggered by control commands from the reader device side.

[0229] (3) Deployment scenarios of AIoT

[0230] AIoT can be deployed in various scenarios. Two of these scenarios are introduced below.

[0231] 1) Topology 1

[0232] Please refer to Figure 2. The AIoT BS and the AIoT device communicate directly to transmit data and signaling. The base station sending the Reader-to-Device (R2D) signal to the AIoT device and the base station receiving the Device-to-Reader (D2R) signal from the AIoT device can be the same or different.

[0233] 2) Topology 2

[0234] Please refer to Figure 3. The AIoT BS communicates with AIoT devices through intermediate nodes. Intermediate nodes can be UEs, repeaters, relays, or Integrated Access Backhaul (IAB) nodes, etc.

[0235] The BS can control intermediate nodes through air interface signaling or other interfaces. For example, the BS can control the UE through the air interface of NR Uu.

[0236] (4) Uplink power control of NR

[0237] NR uplink power control mainly includes open-loop power control and closed-loop power control, among which:

[0238] 1) Open-loop power control: This includes support for partial path loss compensation. The terminal estimates uplink path loss based on downlink measurements and sets the transmission power accordingly.

[0239] 2) Closed-loop power control: Power control is performed based on explicit power control commands configured by the network. These power control commands are actually determined based on previously measured uplink receive power by the network, hence the term "closed-loop".

[0240] The following description, in conjunction with the accompanying drawings, details the transmission power control method, information transmission method, information reception method, and apparatus provided in this application through some embodiments and application scenarios.

[0241] Please refer to Figure 4. An embodiment of this application provides a transmission power control method, including:

[0242] Step 41: The first device determines the transmission power of the first signal based on at least one of the first information and the first event;

[0243] Wherein, the first signal is the signal sent by the first device to the second device;

[0244] The first information is information used to control the transmission power of the first signal of the first device;

[0245] The first event is an event that triggers the first device to adjust the transmission power of the first signal.

[0246] In this embodiment of the application, the first device determines the transmission power of the first signal sent to the second device based on at least one of the first information and the first event. That is, the transmission power of the first signal can be dynamically adjusted according to at least one of the first information and the first event, thereby reducing the situation where the second device cannot be detected during the inventory process due to the small coverage area of ​​the first device or the small propagation coefficient of the second device when the first device is an intermediate node, thus improving the performance of the system inventory.

[0247] In some embodiments, the first device may optionally be a read / write device, a handheld or fixed read (and sometimes write) device for the response device, or a device that communicates with the response device, such as a user equipment (UE, also known as a terminal), repeater, relay, or integrated access backhaul (IAB) node; or the first device may be a device with read / write functionality, such as a reader.

[0248] In some embodiments, the second device may optionally be a response device, such as a tag, which can be a Radio Frequency Identification (RFID) tag, a common name for RFID. The RFID technology used in the tag can be divided into three types: active, passive, and semi-active. Passive tags can also be called passive Internet of Things (IoT) devices. Alternatively, some active tags have the ability to actively generate signals, because the energy of the response device can come from the environment, such as ambient radio frequency (RF) energy, heat energy, wind energy, kinetic energy, etc., and can also be referred to as AIoT.

[0249] Optionally, the first signal includes at least one of the following: a Reader-to-Device (R2D) signal and a Continuous Wave (CW) signal. The R2D signal refers to the signaling sent from the first device to the second device, and the CW signal refers to the energy signal sent from the first device to the second device.

[0250] In some embodiments, optionally, the first information includes at least one of the following:

[0251] 1) The maximum transmission power of the first device;

[0252] 2) The minimum transmission power of the first device;

[0253] Optionally, when determining the proximity or location information of the second device, the first device adjusts its transmission power to be no less than the minimum transmission power.

[0254] Optionally, the minimum transmission power is further used to determine whether, or which second devices, or whether there are any second devices, are counted at the minimum transmission power, or are successfully received by the first device, or meet the minimum proximity or positioning threshold.

[0255] 3) Multiple available transmission powers of the first device;

[0256] 4) The initial transmission power of the first device;

[0257] 5) Transmit power determined based on downlink path loss (DL pathloss);

[0258] Optionally, in order to avoid interfering with the uplink reception of network nodes (e.g., base stations), the first device is allowed to adjust the transmission power, but the maximum transmission power cannot exceed the transmission power determined based on the DL pathloss.

[0259] 6) The desired transmission power of the first device;

[0260] Optionally, no specific rules are set for how power is controlled, but the first device is required to achieve the desired transmission power regardless of circumstances, which is equivalent to directly specifying a power or power range.

[0261] 7) The adjustment step size of the transmission power of the first device;

[0262] 8) The duration T1 during which the first information is effective;

[0263] That is, within time T1 after receiving the first information, the first device applies a new transmission power to the first signal. The duration T1 can be predefined or indicated by a control command.

[0264] 9) The time T2 when the first information takes effect;

[0265] That is, after receiving the first information for time T2, the first device applies a new transmission power to the first signal. The time T2 can be predefined or indicated by a control command.

[0266] 10) Instruction information indicating whether the first device should increase or decrease its transmission power;

[0267] Optionally, the indication information is sent by a network node.

[0268] 11) Proximity sensing request or location request;

[0269] Optionally, based on proximity or location requests (e.g. from network devices), the first device is triggered to adjust the transmission power of the first signal to determine whether, or which second devices, or whether any second devices are detected, successfully received by the first device, or meet the minimum proximity or location threshold under certain transmission power conditions.

[0270] 12) Reference power or reference path loss;

[0271] Optionally, the reference power is, for example, the uplink power. Optionally, the reference path loss is, for example, the Uu path loss, or, for example, a path loss used when determining the uplink power. One consideration is that if the first signal is transmitted over UL, then the power control limitations of the first signal may be somewhat similar to those of normal UL transmission; therefore, some limitations of UL power control should also be considered for the first signal.

[0272] 13) Power control parameters, wherein the power control parameters include at least one of the following: the basic operating point of transmission power based on path loss power control and the path loss compensation factor.

[0273] In some embodiments, optionally, if multiple power control parameters are configured, different R2D transmissions or different R2D signaling types (such as signaling types like inventory or query) correspond to different power control parameters.

[0274] By utilizing the aforementioned various types of first information, the transmission power of the first signal can be adjusted to adapt to different scenarios.

[0275] In some embodiments, optionally, the first device determines the transmission power of the first signal based on the first information by including at least one of the following:

[0276] 1) If the first information includes the maximum transmission power of the first device, determine that the transmission power of the first signal is the maximum transmission power of the first device, or determine that the transmission power of the first signal is not greater than the maximum transmission power of the first device;

[0277] 2) If the first information includes the minimum transmission power of the first device, determine that the transmission power of the first signal is the minimum transmission power of the first device, or determine that the transmission power of the first signal is not less than the minimum transmission power of the first device;

[0278] 3) If the first information includes multiple available transmission powers of the first device, one or more available transmission powers are selected from the multiple available transmission powers as the transmission power of the first signal;

[0279] In some embodiments, optionally, one or more available transmission powers are selected from the plurality of available transmission powers as the transmission power of the first signal, including one of the following:

[0280] Select one available transmission power from the plurality of available transmission powers as the transmission power of the first signal;

[0281] The multiple available transmission powers are sequentially used as the transmission power of the first signal. That is, each available transmission power is used for a certain period of time.

[0282] In some embodiments, the first information may optionally include a duration T1 during which the first information is effective, wherein the duration during which the available transmission power is effective each time is determined based on the T1 in the first information.

[0283] 4) If the first information includes the initial transmission power of the first device, the transmission power of the first signal is determined to be the initial transmission power of the first device;

[0284] 5) If the first information includes the transmission power determined based on the downlink path loss, it is determined that the transmission power of the first signal is not greater than the transmission power determined based on the downlink path loss.

[0285] 6) If the first information includes the expected transmission power of the first device, the transmission power of the first signal is determined to be the expected transmission power of the first device;

[0286] 7) If the first information includes the adjustment step size of the transmission power of the first device, a transmission power adjustment value is determined according to the adjustment step size, and the transmission power of the first signal is adjusted according to the transmission power adjustment value;

[0287] In some embodiments, the transmit power adjustment value may optionally be determined according to at least one of the following methods:

[0288] a) The transmission power adjustment value is the sum or difference between the most recent transmission power adjustment value and the adjustment step size of the transmission power of one or more of the first devices; this adjustment method is also called the cumulative method. For example, if the adjustment step size indicated by the first information is +1dB, then the power adjustment value of the first device each time is +1dB, +2dB, +3dB...;

[0289] b) The transmission power adjustment value is the adjustment step size of the transmission power of the first device. This adjustment method is also called the absolute value method. For example, if the adjustment step size indicated by the first information is +1dB, then the power adjustment value of the first device each time is +1dB, +1dB, +1dB...;

[0290] Optionally, in some embodiments, the transmit power control method further includes:

[0291] The first device determines the method for determining the transmission power adjustment value (cumulative method or absolute value method) based on at least one of the following:

[0292] a) Indication of network nodes;

[0293] b) The format of the control command sent by the network node, or the signaling layer or configuration method carrying the first information;

[0294] In some embodiments, alternatively, different formats or bearer signaling layers or configuration methods correspond to different determination methods.

[0295] For example, if the format of the downlink control information (DCI) carrying control commands is DCI 0_1, then the power adjustment method is cumulative; if the format of the DCI carrying control commands is DCI 0_2, then the power adjustment method is absolute.

[0296] In some embodiments, there may be at least two different formats or bearer signaling layers or configuration methods that correspond to the same determination method.

[0297] Optionally, the bearer signaling layer may include at least one of the following: Layer 1, Media Access Control (MAC) layer, and Radio Resource Control (RRC) layer.

[0298] Optionally, the configuration method includes at least one of the following: static configuration method, semi-static configuration method, or dynamic configuration method.

[0299] c) Predefined determination method;

[0300] Optionally, in some embodiments, the transmit power adjustment value is first determined using a predefined determination method (one of the determination methods), and the transmit power adjustment value is determined using another determination method only when the network node indicates an adjustment of the transmit power.

[0301] d) The signaling type or transmission type of the first signal, and the first signal with different signaling types or transmission types corresponds to different determination methods.

[0302] Optionally, the signaling type may be, for example, inventory or query.

[0303] Optionally, the transmission type may be, for example, R2D transmission or CW transmission.

[0304] In this embodiment, different power adjustment methods can be determined according to different needs, thereby improving the flexibility of transmission power adjustment.

[0305] In some embodiments, optionally, the first information includes the adjustment step size of the transmission power of the first device and the duration T1 during which the first information is effective, wherein the duration during which the adjustment step size is effective is determined according to the T1.

[0306] In some embodiments, optionally, when the first information includes an adjustment step size for the transmission power of the first device, determining a transmission power adjustment value based on the adjustment step size and adjusting the transmission power of the first signal based on the transmission power adjustment value includes at least one of the following:

[0307] a) When the first device receives the first information containing the adjustment step size sent by the network node, it adjusts the transmission power of the first signal once according to the currently received adjustment step size; that is, the first device adjusts the transmission power of the first signal once every time it receives an instruction from the network node.

[0308] In some embodiments, optionally, the first information also includes the effective time T2 of the first information, and the effective time of the adjustment step size is determined according to the T2;

[0309] Alternatively, the adjustment step size may become invalid after the first device receives the next adjustment step size sent by the network node;

[0310] Alternatively, the adjustment step size may become invalid after the first device receives an instruction that the adjustment step size has failed;

[0311] Optionally, the invalidation of the adjustment step size after the first device receives the next adjustment step size sent by the network node includes: the adjustment step size becomes invalid after time T3 after the first device receives the next adjustment step size sent by the network node.

[0312] Optionally, the failure of the adjustment step size after the first device receives the instruction to fail the adjustment step size includes: the adjustment step size fails after time T4 after the first device receives the instruction to fail the adjustment step size.

[0313] (b) Upon receiving the first information containing the adjustment step size from the network node, the first device adjusts the transmission power of the first signal once or multiple times within a first preset time period according to the adjustment step size. That is, after receiving the instruction from the network node, the first device can adjust the transmission power of the first signal once or multiple times within a period of time according to the adjustment step size indicated by the network node.

[0314] Optionally, in some embodiments, the first device may adjust the transmission power of the first signal once or multiple times according to the adjustment step size indicated by the network node when the first event is met.

[0315] In some embodiments, optionally, the first information also includes the effective time T2 of the first information, and the effective time of the adjustment step size is determined according to the T2;

[0316] Alternatively, the adjustment step size may become invalid after the first device receives the next adjustment step size sent by the network node;

[0317] Alternatively, the adjustment step size may become invalid after the first device receives an instruction that the adjustment step size has failed;

[0318] Optionally, the invalidation of the adjustment step size after the first device receives the next adjustment step size sent by the network node includes: the adjustment step size becomes invalid after time T3 after the first device receives the next adjustment step size sent by the network node.

[0319] Optionally, the failure of the adjustment step size after the first device receives the instruction to fail the adjustment step size includes: the adjustment step size fails after time T4 after the first device receives the instruction to fail the adjustment step size.

[0320] In this embodiment, different power adjustment methods can be determined according to different needs, thereby improving the flexibility of transmission power adjustment.

[0321] In some embodiments, optionally, when the first information includes the adjustment step size of the transmission power of the first device, determining the transmission power adjustment value according to the adjustment step size and adjusting the transmission power of the first signal according to the transmission power adjustment value, further includes: the first device determining the transmission power of the first signal as the initial transmission power of the first device.

[0322] In some embodiments, the initial transmit power is optionally determined according to at least one of the following:

[0323] The first information;

[0324] The uplink transmission power of the first device; for example, the uplink power of Uu, which may include at least one of the following: the transmission power of the Physical Random Access Channel (PRACH), the transmission power of the Physical Uplink Control Channel (PUCCH), the transmission power of the Physical Uplink Shared Channel (PUSCH), and the transmission power of the Sounding Reference Signal (SRS).

[0325] The uplink open-loop or closed-loop power parameters of the first device;

[0326] The uplink path loss (UL pathloss) of the first device.

[0327] 8) If the first information includes the duration T1 during which the first information is effective, adjust the transmission power of the first signal within the time T1 after receiving the first information;

[0328] 9) If the first information includes the effective time T2 of the first information, adjust the transmission power of the first signal after receiving the first information at time T2;

[0329] 10) If the first information includes indication information that instructs the first device to increase or decrease the transmission power, the transmission power of the first signal shall be increased or decreased according to the indication information;

[0330] In this case, the network node can simply instruct the first device to adjust the transmission power of the first signal, such as increasing or decreasing it. The first device can then autonomously increase or decrease the transmission power of the first signal, with the adjustment step size determined by the first device, thereby increasing the flexibility of the first device in adjusting the transmission power of the first signal.

[0331] 11) If the first information includes a proximity sensing request or a positioning request, adjust the transmission power of the first signal according to the proximity sensing request or positioning request;

[0332] 12) If the first information includes reference power or reference path loss, determine the transmission power of the first signal based on the reference power or reference path loss;

[0333] 13) If the first information includes power control parameters, the transmission power of the first signal is determined based on the power control parameters.

[0334] In the embodiments of this application, there can be multiple power determination methods, thereby adapting to different needs.

[0335] In some embodiments, optionally, the first device determines the transmission power of the first signal based on at least one of the first information and the first event, including: if the first event is satisfied, the first device sets the transmission power of the first signal to the initial transmission power of the first device;

[0336] The first event includes at least one of the following:

[0337] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0338] The adjusted transmission power is less than the minimum transmission power of the first device;

[0339] The first device completes one or more rounds of inventory or query.

[0340] The first device completes proximity sensing or positioning;

[0341] The first device receives the initial transmit power indicated by the network node;

[0342] The first device receives an instruction from the network node to reset the transmission power.

[0343] In this embodiment of the application, when the first event is met, the transmission power of the first signal is adjusted to the initial transmission power, thereby avoiding overload of the first device or reducing the power consumption of the first device.

[0344] In some embodiments, the initial transmit power is optionally determined according to at least one of the following:

[0345] The first information;

[0346] The uplink transmission power of the first device;

[0347] The uplink open-loop or closed-loop power parameters of the first device;

[0348] The uplink path loss of the first device.

[0349] Optionally, the first event is configured by a network node or predefined by a protocol. In an embodiment where the first event is configured by a network node, it is assumed that N1 types of first events are predefined, and the network node can configure M1 of these N1 types of first events, where M1 is less than or equal to N1.

[0350] In some embodiments, the first information may optionally be obtained from control commands received from the network node, or may be predefined by the protocol.

[0351] In some embodiments, the control command may optionally carry at least one of the following:

[0352] Instruction information that instructs the first device to send a first instruction to the second device, wherein the first instruction includes at least one of the following: selection instruction, inventory instruction, access instruction, and paging instruction;

[0353] Instruct the first device to send a random access response (i.e., Msg2) to the second device;

[0354] Resource parameter configuration information for communication between the first device and the second device.

[0355] By using the control commands mentioned above to indicate the first information, the number of signaling messages can be reduced, thereby improving system performance.

[0356] In some embodiments, the control commands are optionally transmitted on downlink resources (including at least one of time resources and frequency resources) configured on the network node;

[0357] Alternatively, the transmission of the second device is located on the uplink resources (including at least one of time resources and frequency resources) configured by the network node;

[0358] Alternatively, the control commands and the transmission of the second device may be located on different carriers or bandwidth portions (BWPs) or frequency bands.

[0359] In some embodiments, the control command may optionally include at least one of the following: Layer 1 signaling, MAC signaling, and RRC signaling.

[0360] In some embodiments, optionally, when there are multiple control commands, the priority of the first information among the multiple control commands is determined according to the signaling layer corresponding to the multiple control commands. For example, the priority from high to low is L1>MAC>RRC.

[0361] In some embodiments, the signaling indication method of the control command may optionally include at least one of the following: static indication, semi-static indication, and dynamic indication.

[0362] In some embodiments, optionally, when there are multiple control commands, the priority of the first information among the multiple control commands is determined according to the signaling indication method corresponding to the multiple control commands. For example, the priority from high to low is dynamic > semi-static > static.

[0363] Optionally, in some embodiments, the transmit power control method further includes: the first device sending second information to the network node; the second information includes at least one of the following:

[0364] The network node is requested to send a power control request to the first device.

[0365] The quality of the link from the first device to the second device (such as a D2R link);

[0366] The number of second devices counted, detected, or received a response from the first device;

[0367] The number of second devices whose signal power received by the first device is lower or higher than a first threshold;

[0368] The first event.

[0369] In this embodiment of the application, by sending second information to the network node, the network node can be requested or triggered to control the transmission power of the first signal of the first device.

[0370] Optionally, the second information is used to request the network node to control the transmission power of the first signal of the first device.

[0371] In some embodiments, the second information may optionally be carried on the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH).

[0372] In some embodiments, optionally, the resources of the second information are located on the resources of the New Radio (NR) communication configured by the network node (including at least one of time resources and frequency resources), or on the resources of the second device communication configured by the network node (including at least one of time resources and frequency resources).

[0373] In some embodiments, the second information may optionally include information collected from the second device that needs to be reported. By reporting multiple types of information simultaneously, the amount of system signaling can be reduced, and system performance can be improved.

[0374] Optionally, in some embodiments, the first device sending the second information to the network node includes: the first device sending the second information to the network node when the first event is satisfied.

[0375] In some embodiments, the first event may optionally be configured by a network node or predefined by a protocol. In an embodiment where the first event is configured by a network node, it is assumed that N types of first events are predefined, and the network node can configure M of these N types of first events, where M is less than or equal to N.

[0376] Optionally, in some embodiments, the first device determines the transmission power of the first signal based on at least one of the first information and the first event, including: the first device determining the transmission power of the first signal when the first event is satisfied. In this embodiment, by triggering the first device to adjust the transmission power of the first signal through the first event, the first device can autonomously decide the specific adjustment value of the transmission power, thereby increasing the flexibility of the first device in adjusting the transmission power of the first signal.

[0377] In some embodiments, optionally, the first device determines the transmission power of the first signal based on at least one of the first information and the first event, including: the first device determines the transmission power of the first signal based on the first information when the first event is satisfied.

[0378] In some embodiments, optionally, the first event includes at least one of the following:

[0379] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0380] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0381] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0382] The first device receives a proximity sensing request or a location request;

[0383] The first device aims to perform proximity sensing or localization;

[0384] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0385] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0386] The adjusted transmission power is less than the minimum transmission power of the first device;

[0387] The first device completes one or more rounds of inventory or query;

[0388] The first device completes proximity sensing or positioning;

[0389] The first device receives the initial transmit power indicated by the network node;

[0390] The first device receives an instruction from the network node to reset the transmission power.

[0391] By using various types of trigger events, the first device can be triggered to adjust its transmission power, thus increasing the applicability of power adjustment.

[0392] Optionally, the second preset time, the third preset time, the fourth preset time, and the fifth preset time can be the same or different.

[0393] Optionally, the first preset quantity, the second preset quantity, and the third preset quantity can be the same or different.

[0394] In some embodiments, optionally, the second preset time, the third preset time, or the fourth preset time is at least one of the following:

[0395] One or more inventory counting cycles;

[0396] A period of one or more consecutive (e.g., X1) queries or repeated queries;

[0397] A preset number (e.g., x2) of time units. Optionally, the time unit is a slot, a frame, a second, or a millisecond.

[0398] Optionally, at least one of the second preset time, the third preset time, or the fourth preset time is indicated by a network node, or is predefined by a protocol, or is determined autonomously by the first device.

[0399] Optionally, at least one of the first preset quantity, the second preset quantity, and the third preset quantity is indicated by the network node, or is predefined by the protocol, or is determined autonomously by the first device, or is determined according to the time slot counting parameter Q value, for example, Q*x% of slots.

[0400] Optionally, when the first event is met, the first device adjusts the transmission power of the first signal according to the power adjustment step size in the first information.

[0401] Optionally, in some embodiments, the transmit power control method of this application further includes: the first device sending proximity sensing information or location information to the network node; wherein the proximity sensing information or location information includes at least one of the following:

[0402] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0403] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0404] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0405] In this embodiment of the application, by sending proximity sensing information or location information to the network node, the network node can be requested or triggered to control the transmission power of the first signal of the first device.

[0406] In some embodiments, the target transmission power may optionally include at least one of the following:

[0407] The maximum transmission power of the first device;

[0408] The minimum transmission power of the first device;

[0409] Multiple available transmit powers of the first device;

[0410] The initial transmission power of the first device;

[0411] Transmission power determined based on downlink path loss;

[0412] The expected transmission power of the first device;

[0413] The transmission power is adjusted according to the adjustment step size of the transmission power of the first device;

[0414] Transmit power determined based on reference power or reference path loss;

[0415] The transmission power is determined based on the power control parameters, which include at least one of the following: the basic operating point of transmission power based on path loss power control and the path loss compensation factor.

[0416] In some embodiments, optionally, the first device reports proximity sensing information or location information to the network node, and the network node determines whether to instruct the first device to adjust the transmission power of the first signal based on the proximity sensing information or location information.

[0417] In some embodiments, optionally, the network node sends first information to the first device to adjust the transmission power of the first signal. After the first device adjusts the transmission power of the first signal to the target transmission power according to the first information, it reports the proximity sensing information or positioning information.

[0418] Please refer to Figure 5. This application embodiment also provides a transmit power control method, including:

[0419] Step 51: The network node sends the configuration information of the first message or the first event to the first device;

[0420] Wherein, the first information is information used to control the transmission power of the first signal of the first device;

[0421] The first signal is a signal sent from the first device to the second device;

[0422] The first event is an event that triggers the first device to adjust the transmission power of the first signal.

[0423] In this embodiment, the network node controls the transmission power of the first signal of the first device by sending at least one of the configuration information of the first information or the first event. This allows the first device to dynamically adjust the transmission power of the first signal based on at least one of the first information and the first event. This reduces the possibility that the second device might not be detected during the inventory process when the first device is an intermediate node due to its small coverage area or low propagation coefficient. This improves the performance of the system inventory. Furthermore, since the transmission power is controlled by the network node, the impact of the transmission power on other systems can be comprehensively considered, reducing interference to other communication systems.

[0424] In some embodiments, the first device may optionally be a read / write device, a handheld or fixed device for reading information from a response device, or a device that communicates with a response device.

[0425] The second device is a response device.

[0426] In some embodiments, optionally, the first information includes at least one of the following:

[0427] The maximum transmission power of the first device;

[0428] The minimum transmission power of the first device;

[0429] Multiple available transmit powers of the first device;

[0430] The initial transmission power of the first device;

[0431] Transmission power determined based on downlink path loss;

[0432] The expected transmission power of the first device;

[0433] The adjustment step size of the transmission power of the first device;

[0434] The duration T1 during which the first information is effective;

[0435] The first information takes effect at time T2;

[0436] Instructions to increase or decrease the transmission power of the first device;

[0437] Proximity sensing request or location request;

[0438] Reference power or reference path loss;

[0439] Power control parameters, which include at least one of the following: a basic operating point for transmit power based on path loss power control and a path loss compensation factor.

[0440] Optionally, the first information may be carried in the control commands sent by the network node, or may be predefined by the protocol.

[0441] Optionally, the control command may also carry at least one of the following:

[0442] Instruction information that instructs the first device to send a first instruction to the second device, wherein the first instruction includes at least one of the following: selection instruction, inventory instruction, access instruction, and paging instruction;

[0443] Instructing the first device to send a random access response to the second device;

[0444] Resource parameter configuration information for communication between the first device and the second device.

[0445] Optionally, the control commands are transmitted on downlink resources configured on the network node;

[0446] Alternatively, the transmission of the second device may be located on the uplink resources configured by the network node;

[0447] Alternatively, the control commands and the transmission of the second device may be located on different carriers or bandwidth portions (BWPs) or frequency bands.

[0448] Optionally, the control commands include at least one of the following: Layer 1 signaling, MAC signaling, and RRC signaling.

[0449] Optionally, the signaling indication method of the control command includes at least one of the following: static indication, semi-static indication, and dynamic indication.

[0450] Optionally, the first signal includes at least one of the following: an R2D signal and a CW signal.

[0451] Optionally, the transmit power control method further includes:

[0452] The network node receives second information sent by the first device, the second information including at least one of the following:

[0453] The network node is requested to send a power control request to the first device.

[0454] The quality of the link between the first device and the second device;

[0455] The number of second devices counted, detected, or received a response from the first device;

[0456] The number of second devices whose signal power received by the first device is lower or higher than a first threshold;

[0457] The first event.

[0458] Optionally, the second information may also include information collected from the second device that needs to be reported.

[0459] In some embodiments, optionally, the first event includes at least one of the following:

[0460] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0461] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0462] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0463] The first device receives a proximity sensing request or a location request;

[0464] The first device aims to perform proximity sensing or localization;

[0465] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0466] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0467] The adjusted transmission power is less than the minimum transmission power of the first device;

[0468] The first device completes one or more rounds of inventory or query;

[0469] The first device completes proximity sensing or positioning;

[0470] The first device receives the initial transmit power indicated by the network node;

[0471] The first device receives an instruction from the network node to reset the transmission power.

[0472] Optionally, the second preset time, the third preset time, or the fourth preset time is at least one of the following:

[0473] One or more inventory counting cycles;

[0474] The period of one or more consecutive queries or repeated queries;

[0475] Preset quantity of time units.

[0476] Optionally, in some embodiments, the transmit power control method further includes:

[0477] The network node receives proximity sensing information or location information sent by the first device;

[0478] The proximity sensing information or location information includes at least one of the following:

[0479] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0480] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0481] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0482] Optionally, the target transmission power includes at least one of the following:

[0483] The maximum transmission power of the first device;

[0484] The minimum transmission power of the first device;

[0485] Multiple available transmit powers of the first device;

[0486] The initial transmission power of the first device;

[0487] Transmission power determined based on downlink path loss;

[0488] The expected transmission power of the first device;

[0489] The transmission power is adjusted according to the adjustment step size of the transmission power of the first device;

[0490] Transmit power determined based on reference power or reference path loss;

[0491] The transmission power is determined based on the power control parameters, which include at least one of the following: the basic operating point of transmission power based on path loss power control and the path loss compensation factor.

[0492] Please refer to Figure 6. This embodiment of the application also provides an information sending method, including:

[0493] Step 61: The first device sends second information to the network node, the second information including at least one of the following:

[0494] The request information requests the network node to control the transmission power of the first signal of the first device; the first signal is a signal sent by the first device to the second device;

[0495] The quality of the link between the first device and the second device;

[0496] The number of second devices counted, detected, or received a response from the first device;

[0497] First event;

[0498] The first event includes at least one of the following:

[0499] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0500] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0501] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0502] The first device receives a proximity sensing request or a location request;

[0503] The first device aims to perform proximity sensing or localization;

[0504] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0505] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0506] The adjusted transmission power is less than the minimum transmission power of the first device;

[0507] The first device completes one or more rounds of inventory or query;

[0508] The first device completes proximity sensing or positioning;

[0509] The first device receives the initial transmit power indicated by the network node;

[0510] The first device receives an instruction from the network node to reset the transmission power.

[0511] In this embodiment of the application, by sending second information to the network node, the network node can be requested or triggered to control the transmission power of the first signal of the first device, or to request or trigger the network node to perform other control operations.

[0512] In some embodiments, the first device may optionally be a read / write device, a handheld or fixed device for reading information from a response device, or a device that communicates with a response device.

[0513] The second device is a response device.

[0514] In some embodiments, the second information may optionally be carried on a PUCCH or PUSCH.

[0515] In some embodiments, optionally, the resources for the second information are located on the resources for NR communication configured by the network node, or on the resources for second device communication configured by the network node.

[0516] In some embodiments, the second information may optionally include information collected from the second device that needs to be reported.

[0517] Optionally, in some embodiments, the first device sending the second information to the network node includes: the first device sending the second information to the network node when the first event is satisfied.

[0518] In some embodiments, the first event may optionally be configured by the network node or predefined by the protocol.

[0519] In some embodiments, optionally, the second preset time, the third preset time, or the fourth preset time is at least one of the following:

[0520] One or more inventory counting cycles;

[0521] The period of one or more consecutive queries or repeated queries;

[0522] Preset quantity of time units.

[0523] Please refer to Figure 7. This application embodiment also provides an information receiving method, including:

[0524] Step 71: The network node receives second information sent by the first device, the second information including at least one of the following:

[0525] The request information requests the network node to control the transmission power of the first signal of the first device; the first signal is a signal sent by the first device to the second device;

[0526] The quality of the link between the first device and the second device;

[0527] The number of second devices counted, detected, or received a response from the first device;

[0528] First event;

[0529] The first event includes at least one of the following:

[0530] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0531] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0532] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0533] The first device receives a proximity sensing request or a location request;

[0534] The first device aims to perform proximity sensing or localization;

[0535] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0536] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0537] The adjusted transmission power is less than the minimum transmission power of the first device;

[0538] The first device completes one or more rounds of inventory or query;

[0539] The first device completes proximity sensing or positioning;

[0540] The first device receives the initial transmit power indicated by the network node;

[0541] The first device receives an instruction from the network node to reset the transmission power.

[0542] In this embodiment of the application, the network node can trigger control over the transmission power of the first signal of the first device, or trigger the execution of other control operations, by receiving the second information.

[0543] In some embodiments, the first device may optionally be a read / write device, a handheld or fixed device for reading information from a response device, or a device that communicates with a response device.

[0544] The second device is a response device.

[0545] Optionally, the second information may also include information collected from the second device that needs to be reported.

[0546] Optionally, the first event is configured by the network node or predefined by the protocol.

[0547] Optionally, the second preset time, the third preset time, or the fourth preset time is at least one of the following:

[0548] One or more inventory counting cycles;

[0549] The period of one or more consecutive queries or repeated queries;

[0550] Preset quantity of time units.

[0551] Please refer to Figure 8. This embodiment of the application also provides an information sending method, including:

[0552] Step 81: The first device sends proximity sensing information or location information to the network node;

[0553] The proximity sensing information or location information includes at least one of the following:

[0554] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0555] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0556] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0557] In this embodiment of the application, by sending proximity sensing information or location information to the network node, the network node can be requested or triggered to control the relevant operations of the first device.

[0558] In some embodiments, the target transmission power may optionally include at least one of the following:

[0559] The maximum transmission power of the first device;

[0560] The minimum transmission power of the first device;

[0561] Multiple available transmit powers of the first device;

[0562] The initial transmission power of the first device;

[0563] Transmission power determined based on downlink path loss;

[0564] The expected transmission power of the first device;

[0565] The transmission power is adjusted according to the adjustment step size of the transmission power of the first device;

[0566] Transmit power determined based on reference power or reference path loss;

[0567] The transmission power is determined based on the power control parameters, which include at least one of the following: the basic operating point of transmission power based on path loss power control and the path loss compensation factor.

[0568] Please refer to Figure 9. This application embodiment also provides an information receiving method, including:

[0569] Step 91: The network node receives proximity sensing information or location information sent by the first device;

[0570] The proximity sensing information or location information includes at least one of the following:

[0571] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0572] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0573] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0574] In this embodiment of the application, by receiving proximity sensing information or positioning information sent by the first device, the relevant operations of the first device can be controlled.

[0575] In some embodiments, the first device may optionally be a read / write device, a handheld or fixed device for reading information from a response device, or a device that communicates with a response device.

[0576] The second device is a response device.

[0577] The following example illustrates the transmit power control method of this application in a specific application scenario.

[0578] Example 1 of this application:

[0579] In the Topology 2 deployment scenario of AIoT, the UE can act as a reader to communicate with AIoT devices by sending R2D / CW signals (i.e., the first signal). Considering that the transmission power of the UE's R2D / CW signals should be controlled by the network node to reduce interference with the NR system, the UE reader can gradually adjust the transmission power according to the control commands of the network node when performing AIoT transmission.

[0580] Specifically, the UE Reader receives control commands from the network node, which may include at least one of the following:

[0581] Instruction information for instructing UEreader to send a first instruction to an AIoT device, the first instruction may include at least one of the following: selection instruction, inventory instruction, access instruction, paging instruction, for example, QueryRep instruction, QueryAdjust instruction, Select instruction, paging instruction;

[0582] Used to instruct the UEreader to send Msg2 instruction information to the AIoT device;

[0583] Resource parameter configuration information for UEreader to communicate with AIoT devices.

[0584] The first information can be provided to the UE Reader along with these control commands. This first information is for controlling the transmission power of the first signal to the first device.

[0585] The UE Reader parses the first information based on the control commands received from the network node and adjusts the transmission power of the first signal accordingly.

[0586] One implementation is that the network node indicates the maximum transmission power of the first signal to the UE Reader, so that the UE Reader can independently determine the transmission power of the first signal and make it no greater than the maximum transmission power indicated by the network side. Another possibility is that the UE Reader always transmits the first signal at the maximum transmission power.

[0587] Another implementation involves the network node indicating a set of available transmission powers to the UE reader, from which the UE reader can select one to send the first signal. Optionally, the duration for which the selected transmission power is active is also determined based on the network node's indication.

[0588] Another implementation involves the UE Reader first determining the initial transmission power. This initial transmission power can be determined based on the received first information, the UE Reader's uplink transmission power, the UE Reader's uplink open-loop or closed-loop power parameters, or the UE Reader's uplink path loss. Then, the UE Reader adjusts the transmission power of the first signal according to the adjustment step size specified in the control command received from the network node.

[0589] Power adjustment can be divided into two methods: cumulative and absolute. In the cumulative method, the transmission power adjustment value is the sum or difference between the most recent transmission power adjustment value and the UE reader's transmission power adjustment step size. For example, if the UE reader's initial transmission power is 20dB, and the UE reader receives a network node instruction to adjust the power by a step size of +1dB, then the UE reader will adjust the transmission power to 20 + 1 = 21dB. If the UE reader receives another network node instruction to adjust the power by a step size of +1dB, then the actual adjusted power of the UE reader is +2dB, and the UE reader will adjust the transmission power to 21 + 2 = 23dB. In the absolute value method, the UE Reader adjusts its power step size according to the step size indicated by the network node each time. For example, if the UE Reader's initial transmission power is 20dB, and the UE Reader receives an indication from the network node to adjust the power with an adjustment step size of +1dB, then the UE Reader will adjust the transmission power to 20+1=21dB. If the UE Reader receives another indication from the network node to adjust the power with an indicated adjustment step size of +1dB, then the UE Reader will adjust the transmission power to 21+1=22dB.

[0590] Optionally, the power adjustment method can be determined based on network node indications, or by the format / bearer signaling layer / configuration method of different control commands. For example, if the control command is carried by DCI 0_1, the power adjustment method is cumulative; if the control command is carried by DCI 0_2, the power adjustment method is absolute. Alternatively, one power adjustment method can be predefined, and another method is used only when indicated by the network node.

[0591] In addition, the UE Reader can adjust its power only after receiving an instruction from the network node, or the UE Reader can adjust its power according to the adjustment step size indicated by the network node for a period of time. The effective time of the adjustment step size can be determined according to the effective time indicated by the network node, or the UE Reader can become effective after receiving the power adjustment step size indicated by the network node, and become ineffective after receiving the next adjustment step size or after receiving an instruction from the network node indicating that the power adjustment step size has become ineffective.

[0592] Alternatively, the network node may only instruct the UE Reader to adjust the transmission power, such as increasing or decreasing it. In this case, the UE Reader can independently increase or decrease the transmission power of the first signal, and the adjustment step size is determined by the UE Reader.

[0593] Example 2 of this application:

[0594] Another implementation is that the UE Reader autonomously determines the transmission power. A first event triggers the UE Reader to adjust the transmission power of the first signal to improve the performance of the AIoT system inventory. For example, one possible implementation is that if the UE Reader has not inventoried / detected any AIoT devices for a period of time, or has not inventoried / detected a certain number of AIoT devices, the UE Reader can increase the transmission power of the first signal.

[0595] Another possible implementation is that if the power received by the UE Reader from the AIoT device is lower than a first threshold for a certain period of time, the UE Reader increases the transmission power of the first signal; if the power is higher than a second threshold, the UE Reader reduces the transmission power of the first signal.

[0596] Optionally, the time period can be one or more inventory cycles, a continuous cycle of X1 queries / query reps, or X2 time units (slots / frames / seconds / milliseconds). This time period can be indicated by the network node, defined by the protocol, or determined autonomously by the UE.

[0597] Optionally, the certain number can be indicated by network nodes, predefined by the protocol, determined autonomously by the UE, or determined according to the time slot counting parameter Q, for example, Q*x% of slots.

[0598] The transmission power control method provided in this application can be executed by a transmission power control device. This application uses the example of a transmission power control device executing the transmission power control method to illustrate the transmission power control device provided in this application.

[0599] This application provides a transmit power control device. As an example, the transmit power control device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, etc. Exemplarily, the terminal may include, but is not limited to, the type of the first device 12 listed above; this application does not impose specific limitations.

[0600] The transmit power control device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0601] Specifically, referring to Figure 10, when the transmission power control device is a terminal or a component in the terminal, the transmission power control device 100 includes a processing module 101, which is used to determine the transmission power of the first signal based on at least one of the first information and the first event.

[0602] The first signal is a signal sent from the first device to the second device;

[0603] The first information is information used to control the transmission power of the first signal of the first device;

[0604] The first event is an event that triggers the first device to adjust the transmission power of the first signal.

[0605] In this embodiment of the application, the transmission power of the first signal sent to the second device is determined based on at least one of the first information and the first event. That is, the transmission power of the first signal can be dynamically adjusted based on at least one of the first information and the first event, thereby reducing the situation where the second device cannot be detected during the inventory process due to the small coverage area of ​​the first device or the small propagation coefficient of the second device when the first device is an intermediate node, thus improving the performance of the system inventory.

[0606] The transmit power control device provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG4 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0607] This application provides a transmit power control device. As an example, the transmit power control device can be a communication device or a component within a communication device, such as a chip. The communication device can be a network-side device, etc. Exemplarily, the network-side device can include, but is not limited to, the types of network nodes 11 listed above; this application does not impose specific limitations.

[0608] The transmit power control device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0609] Referring to Figure 11, when the transmit power control device is a network-side device or a component in a network-side device, the transmit power control device 110 includes a transmit module 111, which is used to transmit configuration information of the first information or the first event to the first device;

[0610] Wherein, the first information is information used to control the transmission power of the first signal of the first device;

[0611] The first signal is a signal sent from the first device to the second device;

[0612] The first event is an event that triggers the first device to adjust the transmission power of the first signal.

[0613] In this embodiment, the transmission power of the first signal of the first device is controlled by sending at least one of the configuration information of the first information or the first event. This allows the first device to dynamically adjust the transmission power of the first signal based on at least one of the first information and the first event. This reduces the possibility that the second device may not be detected during the inventory process when the first device is an intermediate node due to its small coverage area or small propagation coefficient. This improves the performance of the system inventory. Furthermore, since the transmission power is controlled by the network node, the impact of the transmission power on other systems can be comprehensively considered, reducing interference to other communication systems.

[0614] The transmission power control device provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG5 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0615] The information sending method provided in this application can be executed by an information sending device. This application uses an information sending device executing the information sending method as an example to illustrate the information sending device provided in this application.

[0616] This application provides an information transmitting device. As an example, the information transmitting device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, etc. Exemplarily, the terminal may include, but is not limited to, the type of the first device 12 listed above; this application does not impose specific limitations.

[0617] The information transmitting device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0618] Specifically, referring to Figure 12, when the information sending device is a terminal or a component within a terminal, the information sending device 120 includes a sending module 121 for sending second information to a network node, the second information including at least one of the following:

[0619] The request information requests the network node to control the transmission power of the first signal of the first device; the first signal is a signal sent by the first device to the second device;

[0620] The quality of the link between the first device and the second device;

[0621] The number of second devices counted, detected, or received a response from the first device;

[0622] First event;

[0623] The first event includes at least one of the following:

[0624] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0625] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0626] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0627] The first device receives a proximity sensing request or a location request;

[0628] The first device aims to perform proximity sensing or localization;

[0629] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0630] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0631] The adjusted transmission power is less than the minimum transmission power of the first device;

[0632] The first device completes one or more rounds of inventory or query;

[0633] The first device completes proximity sensing or positioning;

[0634] The first device receives the initial transmit power indicated by the network node;

[0635] The first device receives an instruction from the network node to reset the transmission power.

[0636] In this embodiment of the application, by sending second information to the network node, the network node can be requested or triggered to control the transmission power of the first signal of the first device, or to request or trigger the network node to perform other control operations.

[0637] The information sending device provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG6 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0638] The information receiving method provided in this application can be executed by an information receiving device. This application uses an information receiving device executing the information receiving method as an example to illustrate the information sending device provided in this application.

[0639] This application provides an information receiving device. As an example, the information receiving device may be a communication device or a component within a communication device, such as a chip. The communication device may be a network-side device, etc. Exemplarily, the network-side device may include, but is not limited to, the types of network nodes 11 listed above; this application does not impose specific limitations.

[0640] The information receiving device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0641] Specifically, referring to Figure 13, when the information receiving device is a network-side device or a component within a network-side device, the information receiving device 130 includes a receiving module 131 for receiving second information sent by the first device. The second information includes at least one of the following:

[0642] The request information requests the network node to control the transmission power of the first signal of the first device; the first signal is a signal sent by the first device to the second device;

[0643] The quality of the link between the first device and the second device;

[0644] The number of second devices counted, detected, or received a response from the first device;

[0645] First event;

[0646] The first event includes at least one of the following:

[0647] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0648] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0649] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0650] The first device receives a proximity sensing request or a location request;

[0651] The first device aims to perform proximity sensing or localization;

[0652] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0653] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0654] The adjusted transmission power is less than the minimum transmission power of the first device;

[0655] The first device completes one or more rounds of inventory or query;

[0656] The first device completes proximity sensing or positioning;

[0657] The first device receives the initial transmit power indicated by the network node;

[0658] The first device receives an instruction from the network node to reset the transmission power.

[0659] In this embodiment of the application, the network node can trigger control over the transmission power of the first signal of the first device, or trigger the execution of other control operations, by receiving the second information.

[0660] In this embodiment of the application, by receiving the second information, the transmission power of the first signal can be controlled, or other control operations can be executed.

[0661] The information sending device provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG7 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0662] The information sending method provided in this application can be executed by an information sending device. This application uses an information sending device executing the information sending method as an example to illustrate the information sending device provided in this application.

[0663] This application provides an information transmitting device. As an example, the information transmitting device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, etc. Exemplarily, the terminal may include, but is not limited to, the type of the first device 12 listed above; this application does not impose specific limitations.

[0664] The information transmitting device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0665] Specifically, referring to Figure 14, when the information sending device is a terminal or a component in a terminal, the information sending device 140 includes a sending module 141, which is used to send proximity sensing information or location information to network nodes.

[0666] The proximity sensing information or location information includes at least one of the following:

[0667] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0668] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0669] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0670] In this embodiment of the application, by sending proximity sensing information or location information to the network node, the network node can be requested or triggered to control the relevant operations of the first device.

[0671] The information sending device provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG8 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0672] The information receiving method provided in this application can be executed by an information receiving device. This application uses an information receiving device executing the information receiving method as an example to illustrate the information sending device provided in this application.

[0673] This application provides an information receiving device. As an example, the information receiving device may be a communication device or a component within a communication device, such as a chip. The communication device may be a network-side device, etc. Exemplarily, the network-side device may include, but is not limited to, the types of network nodes 11 listed above; this application does not impose specific limitations.

[0674] The information receiving device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0675] Specifically, referring to Figure 15, when the information receiving device is a network-side device or a component in a network-side device, the information receiving device 150 includes a receiving module 151, used to receive proximity sensing information or location information sent by the first device.

[0676] The proximity sensing information or location information includes at least one of the following:

[0677] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0678] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0679] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0680] In this embodiment of the application, by receiving proximity sensing information or positioning information sent by the first device, the relevant operations of the first device can be controlled.

[0681] The information sending device provided in this application embodiment can implement the various processes implemented in the method embodiment of FIG9 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0682] As shown in Figure 16, this application embodiment also provides a communication device 160, including a processor 161 and a memory 162. The memory 162 stores a program or instructions that can run on the processor 161. For example, when the communication device 160 is a terminal, when the program or instructions are executed by the processor 161, they implement the various steps of the above-described transmission power control method applied to the first device or the information transmission method applied to the first device, and achieve the same technical effect. When the communication device 160 is a network-side device, when the program or instructions are executed by the processor 161, they implement the various steps of the above-described transmission power control method applied to a network node or the information reception method applied to a network node, and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0683] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiments shown in FIG4, FIG6, or FIG8. This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal may be the transmission power control device shown in FIG10 or the information transmission device shown in FIG12 or FIG14. Specifically, FIG17 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0684] The terminal 170 includes, but is not limited to, at least some of the following components: radio frequency unit 171, network module 172, audio output unit 173, input unit 174, sensor 175, display unit 176, user input unit 177, interface unit 178, memory 179, and processor 1710.

[0685] Those skilled in the art will understand that terminal 170 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to processor 1710 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in Figure 17 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0686] It should be understood that, in this embodiment, the input unit 174 may include a graphics processor 1741 and a microphone 1742. The graphics processor 1741 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 176 may include a display panel 1761, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 177 includes at least one of a touch panel 1771 and other input devices 1772. The touch panel 1771 is also called a touch screen. The touch panel 1771 may include a touch detection device and a touch controller. Other input devices 1772 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0687] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 171 can transmit it to the processor 1710 for processing; in addition, the radio frequency unit 171 can send uplink data to the network-side device. Typically, the radio frequency unit 171 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0688] The memory 179 can be used to store software programs or instructions, as well as various data. The memory 179 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 179 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 179 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0689] Processor 1710 may include one or more processing units; optionally, processor 1710 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1710.

[0690] in,

[0691] Processor 1710 is configured to determine the transmission power of a first signal based on at least one of first information and a first event;

[0692] Wherein, the first signal is the signal sent by the first device to the second device;

[0693] The first information is information used to control the transmission power of the first signal of the first device;

[0694] The first event is an event that triggers the first device to adjust the transmission power of the first signal.

[0695] In this embodiment of the application, the transmission power of the first signal sent to the second device is determined based on at least one of the first information and the first event. That is, the transmission power of the first signal can be dynamically adjusted based on at least one of the first information and the first event, thereby reducing the situation where the second device cannot be detected during the inventory process due to the small coverage area of ​​the first device or the small propagation coefficient of the second device when the first device is an intermediate node, thus improving the performance of the system inventory.

[0696] or,

[0697] The radio frequency unit 171 is used to send second information to the network node, the second information including at least one of the following:

[0698] The request information requests the network node to control the transmission power of the first signal of the first device; the first signal is a signal sent by the first device to the second device;

[0699] The quality of the link between the first device and the second device;

[0700] The number of second devices counted, detected, or received a response from the first device;

[0701] First event;

[0702] The first event includes at least one of the following:

[0703] The first device does not conduct an inventory check or detect any or a first preset number of the second devices within a second preset time period;

[0704] The first device did not receive any or a second preset number of responses from the second device within a third preset time period;

[0705] The signal power received by the first device from the second device within a fourth preset time period is lower than a first threshold or higher than a second threshold;

[0706] The first device receives a proximity sensing request or a location request;

[0707] The first device aims to perform proximity sensing or localization;

[0708] The first device does not count or detect any or a third preset number of the second devices that meet the proximity sensing threshold or the positioning threshold within a fifth preset time period;

[0709] The adjusted transmission power is greater than the maximum transmission power of the first device;

[0710] The adjusted transmission power is less than the minimum transmission power of the first device;

[0711] The first device completes one or more rounds of inventory or query;

[0712] The first device completes proximity sensing or positioning;

[0713] The first device receives the initial transmit power indicated by the network node;

[0714] The first device receives an instruction from the network node to reset the transmission power.

[0715] In this embodiment of the application, by sending second information to the network node, the network node can be requested or triggered to control the transmission power of the first signal of the first device, or to request or trigger the network node to perform other control operations.

[0716] or,

[0717] The radio frequency unit 171 is used to send proximity sensing information or location information to network nodes.

[0718] The proximity sensing information or location information includes at least one of the following:

[0719] The number of second devices that are detected by the first device at the target transmission power, or whose response is successfully received by the first device, or whose proximity sensing threshold or positioning threshold is met;

[0720] The target is detected by the first device at the target transmission power, or the reply is successfully received by the first device, or the identifier of the second device meets the proximity sensing threshold or positioning threshold;

[0721] Whether a second device is detected at the target transmission power, or whether a response from a second device is successfully received by the first device, or whether there is indication information from a second device that meets the proximity sensing threshold or positioning threshold.

[0722] In this embodiment of the application, by sending proximity sensing information or location information to the network node, the network node can be requested or triggered to control the relevant operations of the first device.

[0723] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment shown in Figure 4, Figure 6 or Figure 8, and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0724] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in Figure 7 or Figure 9. This network-side device embodiment corresponds to the above-described network node method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effects.

[0725] Specifically, this application embodiment also provides a network-side device, which may be the transmit power control device shown in FIG11, or the information receiving device shown in FIG13 or FIG15. As shown in FIG18, the network-side device 180 includes: an antenna 181, a radio frequency device 182, a baseband device 183, a processor 184, and a memory 185. The antenna 181 is connected to the radio frequency device 182. In the uplink direction, the radio frequency device 182 receives information through the antenna 181 and sends the received information to the baseband device 183 for processing. In the downlink direction, the baseband device 183 processes the information to be transmitted and sends it to the radio frequency device 182. The radio frequency device 182 processes the received information and transmits it through the antenna 181.

[0726] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 183, which includes a baseband processor.

[0727] The baseband device 183 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG18. One of the chips is, for example, a baseband processor, which is connected to the memory 185 via a bus interface to call the program in the memory 185 and execute the network device operation shown in the above method embodiment.

[0728] The network-side device may also include a network interface 186, such as a Common Public Radio Interface (CPRI).

[0729] Specifically, the network-side device 180 in this application embodiment further includes: instructions or programs stored in memory 185 and executable on processor 184. Processor 184 calls the instructions or programs in memory 185 to execute the methods executed by the modules shown in FIG11, FIG13 or FIG15 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0730] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described transmission power control method, information transmission method, or information reception method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0731] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0732] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described transmission power control method, information transmission method, or information reception method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0733] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0734] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described transmission power control method, information transmission method, or information reception method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0735] This application also provides a wireless communication system, including: a first device and a network node, wherein the first device can be used to execute the steps of the transmit power control method or information transmission method applied to the first device as described above, and the network node can be used to execute the steps of the transmit power control method or information reception method applied to the network node as described above.

[0736] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0737] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0738] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for transmitting power control, comprising: determining, by a first device, a transmitting power of a first signal according to at least one of a first information and a first event; wherein the first signal is a signal transmitted by the first device to a second device; the first information is information used for transmitting power control of the first signal by the first device; and the first event is an event triggering the first device to adjust the transmitting power of the first signal. The first information comprises at least one of: a maximum transmitting power of the first device; a minimum transmitting power of the first device; a plurality of available transmitting powers of the first device; an initial transmitting power of the first device; a transmitting power determined based on a downlink path loss; an expected transmitting power of the first device; an adjustment step of the transmitting power of the first device; a time duration T1 during which the first information is valid; a time T2 at which the first information is valid; indication information indicating the first device to increase or decrease the transmitting power; a proximity awareness request or a positioning request; a reference power or a reference path loss; and a power control parameter comprising at least one of a transmitting power basic operating point based on path loss power control and a path loss compensation factor. The first device determining the transmitting power of the first signal according to the first information comprises at least one of: in a case that the first information comprises the maximum transmitting power of the first device, determining the transmitting power of the first signal as the maximum transmitting power of the first device, or determining the transmitting power of the first signal not greater than the maximum transmitting power of the first device; in a case that the first information comprises the minimum transmitting power of the first device, determining the transmitting power of the first signal as the minimum transmitting power of the first device, or determining the transmitting power of the first signal not less than the minimum transmitting power of the first device; in a case that the first information comprises the plurality of available transmitting powers of the first device, selecting one or more available transmitting powers from the plurality of available transmitting powers as the transmitting power of the first signal; in a case that the first information comprises the initial transmitting power of the first device, determining the transmitting power of the first signal as the initial transmitting power of the first device; in a case that the first information comprises the transmitting power determined based on the downlink path loss, determining the transmitting power of the first signal not greater than the transmitting power determined based on the downlink path loss; in a case that the first information comprises the expected transmitting power of the first device, determining the transmitting power of the first signal as the expected transmitting power of the first device; in a case that the first information comprises the adjustment step of the transmitting power of the first device, determining a transmitting power adjustment value according to the adjustment step, and adjusting the transmitting power of the first signal according to the transmitting power adjustment value; and in a case that the first information comprises the time duration T1 during which the first information is valid, adjusting the transmitting power of the first signal within T1 time after receiving the first information. ​ ​ ​ ​ 2. The method of claim 1, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 3. The method of claim 1 or 2, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ in a case where the first information comprises a time T2 at which the first information takes effect, adjusting the transmission power of the first signal after the T2 time at which the first information is received; in a case where the first information comprises indication information indicating that the first device increases or decreases the transmission power, increasing or decreasing the transmission power of the first signal according to the indication information; in a case where the first information comprises a proximity awareness request or a positioning request, adjusting the transmission power of the first signal according to the proximity awareness request or the positioning request; in a case where the first information comprises a reference power or a reference path loss, determining the transmission power of the first signal according to the reference power or the reference path loss; in a case where the first information comprises a power control parameter, determining the transmission power of the first signal according to the power control parameter.

4. The method of claim 3, wherein, The transmission power adjustment value is determined according to at least one of the following determination manners: The transmission power adjustment value is the sum or difference of the last transmission power adjustment value and the adjustment step of the transmission power of the one or more first devices. The transmission power adjustment value is the adjustment step of the transmission power of the first device.

5. The method of claim 4, further comprising: The first device determines the determination manner of the transmission power adjustment value according to at least one of the following: an indication of a network node; a format or a bearer signaling layer or a configuration manner of a control command sent by a network node, the control command being a control command carrying the first information; a pre-defined determination manner; a signaling type or a transmission type of the first signal, different signaling types or transmission types of the first signal corresponding to different determination manners.

6. The method according to any one of claims 3 to 5, wherein, in a case where the first information comprises an adjustment step of the transmission power of the first device, determining a transmission power adjustment value according to the adjustment step, and adjusting the transmission power of the first signal according to the transmission power adjustment value, comprising at least one of the following: in a case where the first device receives the first information containing the adjustment step sent by a network node, adjusting the transmission power of the first signal once according to the currently received adjustment step; in a case where the first device receives the first information containing the adjustment step sent by a network node, adjusting the transmission power of the first signal one or more times according to the adjustment step within a first preset time.

7. The method of any one of claims 3 to 6, wherein: the first information further comprises a time T2 at which the first information takes effect, and the adjustment step takes effect according to the T2; or, the adjustment step is invalid after the first device receives a next adjustment step sent by a network node; or, the adjustment step is invalid after the first device receives an instruction that the adjustment step is invalid.

8. The method according to any one of claims 3 to 7, wherein, in a case where the first information comprises an adjustment step of the transmission power of the first device, determining a transmission power adjustment value according to the adjustment step, and adjusting the transmission power of the first signal according to the transmission power adjustment value, further comprising: the first device determines the transmission power of the first signal to be an initial transmission power of the first device.

9. The method according to any one of claims 1 to 8, wherein, The first device determines the transmission power of the first signal according to at least one of the first information and the first event, including: In the case where the first event is met, the first device sets the transmission power of the first signal as the initial transmission power of the first device; The first event includes at least one of: The adjusted transmission power is greater than the maximum transmission power of the first device; The adjusted transmission power is less than the minimum transmission power of the first device; The first device completes one or more rounds of inventory or query; The first device completes proximity sensing or positioning; The first device receives the initial transmission power indicated by the network node; The first device receives the reset transmission power indicated by the network node.

10. The method of claim 8 or 9, wherein, The initial transmission power is determined according to at least one of: The first information; The uplink transmission power of the first device; The uplink open loop or closed loop power parameter of the first device; The uplink path loss of the first device.

11. The method according to any one of claims 1 to 10, wherein, The first information is obtained from the received control command of the network node or predefined by the protocol.

12. The method of claim 11, wherein, The control command further carries at least one of: Indication information indicating that the first device transmits a first instruction to the second device, the first instruction including at least one of: selection instruction, inventory instruction, access instruction and paging instruction; Indication information indicating that the first device transmits a random access response to the second device; Resource parameter configuration information for communication between the first device and the second device.

13. The method of claim 11 or 12, wherein: The control command is transmitted on a downlink resource configured by the network node; Or, the transmission of the second device is located on an uplink resource configured by the network node; Or, the control command and the transmission of the second device are located on different carriers or bandwidth parts BWP or frequency bands.

14. The method according to any one of claims 11 to 13, wherein, The control command includes at least one of: layer 1 signaling, medium access control MAC signaling, and radio resource control RRC signaling.

15. The method of claim 14, wherein, When the control command is multiple, the priority of the first information in multiple control commands is determined according to the signaling layer corresponding to multiple control commands.

16. The method according to any one of claims 11 to 15, wherein, When the control command is multiple, the priority of the first information in multiple control commands is determined according to the signaling indication mode corresponding to multiple control commands.

17. The method of any one of claims 1 to 16, wherein, The first signal includes at least one of: reader-to-device R2D signal and continuous wave CW signal.

18. The method of any one of claims 1 to 17, further comprising: The first device transmits second information to the network node; The second information includes at least one of: Request information requesting the network node to control the transmission power of the first device; The quality of the link between the first device and the second device; The number of the second devices that the first device inventories or detects or receives a reply; The number of the second devices whose signal power received by the first device is lower or higher than a first threshold; The first event.

19. The method of claim 18, wherein, The second information further comprises information collected from the second device and needed to be reported.

20. The method of claim 18 or 19, wherein, The first device sending the second information to the network node comprises: The first device sending the second information to the network node comprises:

21. The method of any one of claims 1 to 20, wherein, The first device sending the second information to the network node comprises:

22. The method of any one of claims 1 to 21, wherein, The first event is configured by the network node or predefined by a protocol. The first device determining the transmission power of the first signal according to at least one of the first information and the first event comprises:

23. The method of any one of claims 1 to 22, wherein, The first device determining the transmission power of the first signal according to the first information comprises: The first event comprises at least one of: The first device not checking or detecting any or a first preset number of the second devices within a second preset time; The first device not receiving any or a second preset number of replies from the second devices within a third preset time; The first device receiving signals from the second devices with power lower than a first threshold or higher than a second threshold within a fourth preset time; The first device receiving a proximity awareness request or a positioning request; The first device desiring to perform proximity awareness or positioning; The first device not checking or detecting any or a third preset number of the second devices satisfying a proximity awareness threshold or a positioning threshold within a fifth preset time; The adjusted transmission power is greater than a maximum transmission power of the first device; The adjusted transmission power is less than a minimum transmission power of the first device; The first device completing one or more rounds of checking or querying; The first device completing proximity awareness or positioning; The first device receiving an initial transmission power indicated by the network node; 24. The method of claim 23, wherein, The first device receiving a reset transmission power indicated by the network node. The second preset time, the third preset time or the fourth preset time is at least one of: One or more checking periods; One or more consecutive querying periods or query rep periods; A preset number of time units.

25. The method of claim 1, further comprising: The first device sending proximity awareness information or positioning information to the network node; The proximity awareness information or the positioning information comprises at least one of: A number of the second devices checked by the first device at a target transmission power, or successfully received by the first device at the target transmission power, or satisfying a proximity awareness threshold or a positioning threshold; Identifications of the second devices checked by the first device at a target transmission power, or successfully received by the first device at the target transmission power, or satisfying a proximity awareness threshold or a positioning threshold; 26. The method of claim 25, wherein, An indication of whether there is any second device checked by the first device at a target transmission power, or successfully received by the first device at the target transmission power, or satisfying a proximity awareness threshold or a positioning threshold. The target transmission power comprises at least one of: A maximum transmission power of the first device; A minimum transmission power of the first device; A plurality of available transmission powers of the first device; An initial transmission power of the first device; A transmission power determined based on a downlink path loss; An expected transmission power of the first device; a transmission power adjusted according to an adjustment step of a transmission power of the first device; a transmission power determined based on a reference power or a reference path loss; a transmission power determined based on a power control parameter, the power control parameter comprising at least one of a path loss power control based transmission power basic operating point and a path loss compensation factor.

27. The method of any one of claims 1-26, wherein, the first device is a read-write device, a handheld reading or a fixed reading device, or a device communicating with the second device; the second device is a responding device.

28. A method for transmission power control, comprising: a network node sending a first device configuration information of a first information or a first event; wherein the first information is information for transmission power control of a first signal of the first device; the first signal is a signal transmitted by the first device to a second device; the first event is an event triggering the first device to adjust a transmission power of the first signal.

29. The method of claim 28, wherein, the first information comprises at least one of: a maximum transmission power of the first device; a minimum transmission power of the first device; a plurality of available transmission powers of the first device; an initial transmission power of the first device; a transmission power determined based on a downlink path loss; an expected transmission power of the first device; an adjustment step of a transmission power of the first device; a duration T1 of validity of the first information; a time T2 of validity of the first information; indication information indicating the first device to increase or decrease a transmission power; a proximity awareness request or a positioning request; a reference power or a reference path loss; a power control parameter comprising at least one of a path loss power control based transmission power basic operating point and a path loss compensation factor.

30. The method of claim 28 or 29, wherein, the first event comprises at least one of: the first device not inventorying or detecting any or a first preset number of the second devices within a second preset time; the first device not receiving any or a second preset number of replies of the second devices within a third preset time; a signal power of the second devices received by the first device within a fourth preset time being lower than a first threshold or higher than a second threshold; the first device receiving a proximity awareness request or a positioning request; the first device desiring to perform proximity awareness or positioning; the first device not inventorying or detecting any or a third preset number of the second devices satisfying a proximity awareness threshold or a positioning threshold within a fifth preset time; the adjusted transmission power is greater than a maximum transmission power of the first device; the adjusted transmission power is less than a minimum transmission power of the first device; the first device completing one or more rounds of inventorying or querying; the first device completing proximity awareness or positioning; the first device receiving an initial transmission power indicated by a network node; the first device receiving a reset transmission power indicated by a network node.

31. A method for information transmission, comprising: a first device sending a second information to a network node, the second information comprising at least one of: request information requesting the network node to control transmission power of a first signal of the first device; the first signal is a signal transmitted by the first device to a second device; a quality of a link between the first device and the second device; a number of the second devices that the first device discovers or detects or receives replies from; a first event; wherein the first event comprises at least one of: the first device does not discover or detect any or a first preset number of the second devices within a second preset time; the first device does not receive any or a second preset number of replies from the second devices within a third preset time; signal power of the second devices received by the first device within a fourth preset time is lower than a first threshold or higher than a second threshold; the first device receives a proximity awareness request or a positioning request; the first device wants to perform proximity awareness or positioning; the first device does not discover or detect any or a third preset number of the second devices that satisfy a proximity awareness threshold or a positioning threshold within a fifth preset time; the adjusted transmission power is greater than a maximum transmission power of the first device; the adjusted transmission power is less than a minimum transmission power of the first device; the first device completes one or more rounds of discovery or query; the first device completes proximity awareness or positioning; the first device receives an initial transmission power indicated by a network node; the first device receives a reset transmission power indicated by a network node.

32. The method of claim 31, wherein, The second information further comprises information collected from the second devices that needs to be reported.

33. The method of claim 31 or 32, wherein, The first device sending the second information to the network node comprises: the first device sending the second information to the network node when the first event is satisfied.

34. The method of any one of claims 31 to 33, wherein, The first event is configured by the network node or predefined by a protocol.

35. The method of claim 31, wherein, The second preset time, the third preset time or the fourth preset time is at least one of: one or more discovery periods; a period of one or more queries or query rep in succession; a preset number of time units.

36. An information receiving method, comprising: a network node receiving second information sent by a first device, the second information comprising at least one of: request information requesting the network node to control transmission power of a first signal of the first device; the first signal is a signal transmitted by the first device to a second device; a quality of a link between the first device and the second device; a number of the second devices that the first device discovers or detects or receives replies from; a first event; wherein the first event comprises at least one of: the first device does not discover or detect any or a first preset number of the second devices within a second preset time; the first device does not receive any or a second preset number of replies from the second devices within a third preset time; signal power of the second devices received by the first device within a fourth preset time is lower than a first threshold or higher than a second threshold; the first device receives a proximity awareness request or a positioning request; the first device wants to perform proximity awareness or positioning; the first device does not perform a round of inventory or detection of any or a third preset number of the second devices meeting a proximity awareness threshold or a positioning threshold within a fifth preset time; the adjusted transmission power is greater than a maximum transmission power of the first device; the adjusted transmission power is less than a minimum transmission power of the first device; the first device completes one or more rounds of inventory or query; the first device completes proximity awareness or positioning; the first device receives an initial transmission power indicated by a network node; the first device receives a reset transmission power indicated by a network node.

37. An information transmission method, comprising: a first device transmitting proximity awareness information or positioning information to a network node; wherein the proximity awareness information or positioning information comprises at least one of: a number of second devices that are inventoried by the first device or whose replies are successfully received by the first device at a target transmission power; identifications of second devices that are inventoried by the first device or whose replies are successfully received by the first device at a target transmission power; an indication of whether there are second devices inventoried or whether there are second devices whose replies are successfully received by the first device at a target transmission power.

38. The method of claim 37, wherein, the target transmission power comprises at least one of: a maximum transmission power of the first device; a minimum transmission power of the first device; a plurality of available transmission powers of the first device; an initial transmission power of the first device; a transmission power determined based on a downlink path loss; an expected transmission power of the first device; a transmission power adjusted according to an adjustment step of a transmission power of the first device; a transmission power determined based on a reference power or a reference path loss; a transmission power determined based on a power control parameter, the power control parameter comprising at least one of: a transmission power basic operating point based on path loss power control and a path loss compensation factor.

39. An information reception method, comprising: a network node receiving proximity awareness information or positioning information transmitted by a first device; wherein the proximity awareness information or positioning information comprises at least one of: a number of second devices that are inventoried by the first device or whose replies are successfully received by the first device at a target transmission power; identifications of second devices that are inventoried by the first device or whose replies are successfully received by the first device at a target transmission power; an indication of whether there are second devices inventoried or whether there are second devices whose replies are successfully received by the first device at a target transmission power.

40. A transmission power control apparatus, comprising: a processing module configured to determine a transmission power of a first signal based on at least one of first information and a first event; wherein the first signal is a signal transmitted by a first device to a second device. The first information is information for performing transmission power control of the first signal on the first device. The first event is an event triggering the first device to adjust the transmission power of the first signal.

41. The apparatus of claim 40, wherein, The first information includes at least one of: a maximum transmission power of the first device; a minimum transmission power of the first device; a plurality of available transmission powers of the first device; an initial transmission power of the first device; a transmission power determined based on downlink path loss; an expected transmission power of the first device; an adjustment step of the transmission power of the first device; a duration T1 at which the first information takes effect; a time T2 at which the first information takes effect; indication information indicating the first device to increase or decrease transmission power; a proximity awareness request or a positioning request; a reference power or a reference path loss; a power control parameter including at least one of a path loss power control based transmission power basic operating point and a path loss compensation factor.

42. The apparatus of claim 40 or 41, wherein, The first event includes at least one of: the first device not checking or detecting any or a first preset number of the second devices within a second preset time; the first device not receiving any or a second preset number of replies of the second devices within a third preset time; signal power of the second devices received by the first device within a fourth preset time being lower than a first threshold or higher than a second threshold; the first device receiving a proximity awareness request or a positioning request; the first device desiring to perform proximity awareness or positioning; the first device not checking or detecting any or a third preset number of the second devices satisfying a proximity awareness threshold or a positioning threshold within a fifth preset time; the adjusted transmission power being greater than a maximum transmission power of the first device; the adjusted transmission power being less than a minimum transmission power of the first device; the first device completing one or more rounds of checking or querying; the first device completing proximity awareness or positioning; the first device receiving an initial transmission power indicated by a network node; the first device receiving a reset transmission power indicated by a network node.

43. A transmission power control apparatus, comprising: a sending module configured to send configuration information of first information or a first event to a first device; wherein the first information is information for performing transmission power control of a first signal on the first device; the first signal is a signal transmitted by the first device to a second device; the first event is an event triggering the first device to adjust the transmission power of the first signal.

44. The device of claim 43, wherein, The first information includes at least one of: a maximum transmission power of the first device; a minimum transmission power of the first device; a plurality of available transmission powers of the first device; an initial transmission power of the first device; a transmission power determined based on downlink path loss; an expected transmission power of the first device; an adjustment step of the transmission power of the first device; a duration T1 at which the first information takes effect; a time T2 at which the first information takes effect; indication information indicating the first device to increase or decrease transmission power; a proximity awareness request or a positioning request; Reference power or reference path loss; Power control parameters, the power control parameters comprising at least one of: a path loss power control based transmission power basic operating point and a path loss compensation factor.

45. The device of claim 43 or 44, wherein, The first event comprises at least one of: The first device does not inventory or detect any or a first preset number of the second devices within a second preset time; The first device does not receive any or a second preset number of replies from the second devices within a third preset time; The first device receives a signal power of the second devices lower than a first threshold or higher than a second threshold within a fourth preset time; The first device receives a proximity awareness request or a positioning request; The first device wishes to perform proximity awareness or positioning; The first device does not inventory or detect any or a third preset number of the second devices satisfying a proximity awareness threshold or a positioning threshold within a fifth preset time; The adjusted transmission power is greater than a maximum transmission power of the first device; The adjusted transmission power is less than a minimum transmission power of the first device; The first device completes one or more rounds of inventory or query; The first device completes proximity awareness or positioning; The first device receives an initial transmission power indicated by a network node; The first device receives a reset transmission power indicated by a network node. 46.An information transmitting apparatus, comprising: a transmitting module configured to transmit second information to a network node, the second information comprising at least one of: request information requesting the network node to perform transmission power control on a first signal transmitted by a first device to a second device; a quality of a link between the first device and the second device; a number of the second devices inventoried or detected or received replies from by the first device; a first event; wherein the first event comprises at least one of: the first device does not inventory or detect any or a first preset number of the second devices within a second preset time; the first device does not receive any or a second preset number of replies from the second devices within a third preset time; the first device receives a signal power of the second devices lower than a first threshold or higher than a second threshold within a fourth preset time; the first device receives a proximity awareness request or a positioning request; the first device wishes to perform proximity awareness or positioning; the first device does not inventory or detect any or a third preset number of the second devices satisfying a proximity awareness threshold or a positioning threshold within a fifth preset time; the adjusted transmission power is greater than a maximum transmission power of the first device; the adjusted transmission power is less than a minimum transmission power of the first device; the first device completes one or more rounds of inventory or query; the first device completes proximity awareness or positioning; the first device receives an initial transmission power indicated by a network node; the first device receives a reset transmission power indicated by a network node. 47.An information receiving apparatus, comprising: a receiving module configured to receive second information transmitted by a first device, the second information comprising at least one of: request information for requesting the network node to control the transmission power of the first signal transmitted by the first device, the first signal being a signal transmitted by the first device to a second device; a quality of a link between the first device and the second device; a number of the second devices that the first device discovers or detects or receives a reply from; a first event; wherein the first event comprises at least one of: the first device does not discover or detect any or a first preset number of the second devices within a second preset time; the first device does not receive any or a second preset number of replies from the second devices within a third preset time; a signal power of the second devices received by the first device is lower than a first threshold or higher than a second threshold within a fourth preset time; the first device receives a proximity awareness request or a positioning request; the first device wants to perform proximity awareness or positioning; the first device does not discover or detect any or a third preset number of the second devices that satisfy a proximity awareness threshold or a positioning threshold within a fifth preset time; the adjusted transmission power is greater than a maximum transmission power of the first device; the adjusted transmission power is less than a minimum transmission power of the first device; the first device completes one or more rounds of discovery or query; the first device completes proximity awareness or positioning; the first device receives an initial transmission power indicated by the network node; the first device receives a reset transmission power indicated by the network node. 48.An information transmitting apparatus, comprising: a transmitting module configured to transmit proximity awareness information or positioning information to a network node; wherein the proximity awareness information or the positioning information comprises at least one of: a number of second devices that are discovered by a first device at a target transmission power, or, a number of replies from the second devices that are successfully received by the first device, or, a number of the second devices that satisfy a proximity awareness threshold or a positioning threshold; identifications of the second devices that are discovered by the first device at the target transmission power, or, the identifications of the replies from the second devices that are successfully received by the first device, or, the identifications of the second devices that satisfy the proximity awareness threshold or the positioning threshold; an indication information of whether there is a second device discovered by the first device at the target transmission power, or, an indication information of whether there is a reply from the second device successfully received by the first device, or, an indication information of whether there is a second device that satisfies the proximity awareness threshold or the positioning threshold. 49.An information receiving apparatus, comprising: a receiving module configured to receive proximity awareness information or positioning information transmitted by a first device; wherein the proximity awareness information or the positioning information comprises at least one of: a number of second devices that are discovered by the first device at a target transmission power, or, a number of replies from the second devices that are successfully received by the first device, or, a number of the second devices that satisfy a proximity awareness threshold or a positioning threshold; identifications of the second devices that are discovered by the first device at the target transmission power, or, the identifications of the replies from the second devices that are successfully received by the first device, or, the identifications of the second devices that satisfy the proximity awareness threshold or the positioning threshold; an indication information of whether there is a second device discovered by the first device at the target transmission power, or, an indication information of whether there is a reply from the second device successfully received by the first device, or, an indication information of whether there is a second device that satisfies the proximity awareness threshold or the positioning threshold.

50. A communication device comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement the steps of the transmission power control method according to any one of claims 1 to 27, or, the programs or instructions, when executed by the processor, implement the steps of the transmission power control method according to any one of claims 28 to 30, or, the programs or instructions, when executed by the processor, implement the steps of the information transmission method according to any one of claims 31 to 35, or, the programs or instructions, when executed by the processor, implement the steps of the information reception method according to claim 36, or, the programs or instructions, when executed by the processor, implement the steps of the information transmission method according to claim 37 or 38, or, the programs or instructions, when executed by the processor, implement the steps of the information reception method according to claim 39.

51. A readable storage medium, the readable storage medium storing programs or instructions, the programs or instructions, when executed by a processor, implement the steps of the transmission power control method according to any one of claims 1 to 27, or, implement the steps of the transmission power control method according to any one of claims 28 to 30, or, implement the steps of the information transmission method according to any one of claims 31 to 35, or, implement the steps of the information reception method according to claim 36, or, implement the steps of the information transmission method according to claim 37 or 38, or, implement the steps of the information reception method according to claim 39.

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