Method, apparatus and storage medium for adjusting transmit power

Abstract

The application provides a transmitting power adjustment method and device and a storage medium, relates to the technical field of communication, and can accurately adjust transmitting power in real time. The method comprises the following steps: sending first data information to a network device; the first data information comprises signal strength and distance; receiving a power adjustment coefficient and a signal strength threshold value from the network device; the power adjustment coefficient corresponds to a group of signal strengths; the signal strength threshold value is determined according to the distance between the terminal device and the network device; determining a power adjustment amount of the terminal device based on the power adjustment coefficient, the signal strength threshold value and the signal strength of the network device measured at the current moment; and adjusting the transmitting power of the last time to obtain the transmitting power of the terminal device for sending data to the network device at the current time based on the power adjustment amount of the terminal device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to a transmit power adjustment method and device and a storage medium. BACKGROUND

[0002] In the related art, power adjustment of a terminal device is an important technology in a mobile communication system, which is used to manage and optimize the transmit power of the terminal device, and can reduce the energy consumption of the terminal device and prolong the battery life of the terminal by adjusting the transmit power of the terminal.

[0003] At present, there are various power adjustment technical solutions for terminals, including opening loop power control (OLPC), closed loop power control (CLPC), fast power control, hybrid power control, and power control grouping. Most of these terminal power adjustment technical solutions lack dynamicity and cannot adjust the power in real time. Therefore, how to accurately adjust the transmit power in real time is a problem to be solved at present. SUMMARY

[0004] The present application provides a transmit power adjustment method, device and storage medium, which can accurately adjust the transmit power in real time.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a transmit power adjustment method applied to a terminal device, the method comprising: sending first data information to a network device; the first data information comprising signal strength and distance; the signal strength being obtained by measuring a communication signal of the network device by the terminal device within a preset time period; the preset time period being a time period between a time when the terminal device last sent data to the network device and a current time; the distance being a distance from the terminal device to the network device; receiving a power adjustment coefficient and a signal strength threshold from the network device; the power adjustment coefficient corresponding to a group of signal strengths; the signal strength threshold being determined according to the distance from the terminal device to the network device; determining a power adjustment amount of the terminal device based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current time; adjusting the transmit power of the last time based on the power adjustment amount of the terminal device to obtain the transmit power of the terminal device for sending data to the network device at the current time.

[0007] In conjunction with the first aspect, in one possible implementation, adjusting the previous transmission power based on the power adjustment amount of the terminal device to obtain the transmission power of the terminal device for the current transmission of data to the network device includes: if the power adjustment amount of the terminal device is greater than or equal to a preset threshold, determining the transmission power of the terminal device for the current transmission of data to the network device based on the sum of the power adjustment amount of the terminal device and the previous transmission power.

[0008] In conjunction with the first aspect, in one possible implementation, if the power adjustment amount of the terminal device is less than a preset threshold, the previous transmission power is determined to be the transmission power of the terminal device for the current transmission of data to the network device.

[0009] In conjunction with the first aspect, in one possible implementation, determining the power adjustment amount of the terminal device based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current moment includes: determining the power adjustment amount of the terminal device by multiplying the difference between the signal strength threshold and the signal strength of the network device measured at the current moment by the power adjustment coefficient.

[0010] Secondly, this application provides a method for adjusting transmission power, applied to a network device. The method includes: receiving first data information sent from a terminal device; the first data information includes signal strength and distance; the signal strength is obtained by the terminal device measuring the communication signal of the network device within a preset time period; the preset time period is the time period between the last time the terminal device sent data to the network device and the current time; the distance is the distance from the terminal device to the network device; determining a signal strength threshold based on the distance; determining a power adjustment coefficient corresponding to the signal strength; and sending the power adjustment coefficient and the signal strength threshold to the terminal device so that the terminal device adjusts the transmission power of the previous transmission.

[0011] In conjunction with the second aspect, in one possible implementation, determining the signal strength threshold based on the distance includes: determining a baseline value and an attenuation factor; the distance between the terminal device and the network device is inversely proportional to the baseline value; the attenuation factor is used to characterize the attenuation rate between signal strength and distance; and determining the signal strength threshold based on the baseline value, the attenuation factor, and the distance.

[0012] In conjunction with the second aspect, in one possible implementation, the method further includes: receiving second data information sent by multiple terminal devices; the second data information includes a target signal strength and a transmission power corresponding to the target signal strength; determining multiple signal strength groups; each signal strength group includes multiple different target signal strengths; for each signal strength group, determining a power adjustment coefficient corresponding to the signal strength group based on the average value of the transmission power and the average value of the signal strength, to obtain a power adjustment coefficient corresponding to each signal strength group in the multiple signal strength groups, wherein the power adjustment coefficients corresponding to any two signal strength groups are different; the determination of the power adjustment coefficient corresponding to the signal strength includes: determining the coefficient corresponding to the target signal strength group as the power adjustment coefficient of the signal strength based on the target signal strength group corresponding to the signal strength; the multiple signal strength groups include the target signal strength group.

[0013] Thirdly, this application provides a transmission power adjustment device applied to a terminal device. The device includes: a processing unit and a communication unit; the communication unit is used to send first data information to a network device; the first data information includes signal strength and distance; the signal strength is obtained by measuring the communication signal of the network device by the terminal device within a preset time period; the preset time period is the time period between the last time the terminal device sent data to the network device and the current time; the distance is the distance from the terminal device to the network device; the communication unit is also used to receive a power adjustment coefficient and a signal strength threshold from the network device; the power adjustment coefficient corresponds to a set of signal strengths; the signal strength threshold is determined based on the distance from the terminal device to the network device; the processing unit is used to determine the power adjustment amount of the terminal device based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current time; the processing unit is also used to adjust the previous transmission power based on the power adjustment amount of the terminal device to obtain the transmission power of the terminal device sending data to the network device in the current time.

[0014] In conjunction with the third aspect, in one possible implementation, the processing unit is further configured to: determine the transmission power of the terminal device for the current data transmission to the network device based on the sum of the power adjustment amount of the terminal device and the previous transmission power when the power adjustment amount of the terminal device is greater than or equal to a preset threshold.

[0015] In conjunction with the third aspect, in one possible implementation, if the power adjustment amount of the terminal device is less than a preset threshold, the previous transmission power is determined to be the transmission power of the terminal device for the current transmission of data to the network device.

[0016] In conjunction with the third aspect, in one possible implementation, the processing unit is further configured to: determine the power adjustment amount of the terminal device based on the product of the signal strength threshold, the difference between the signal strength of the network device measured at the current time, and the power adjustment coefficient.

[0017] Fourthly, this application provides a transmission power adjustment device applied to a network device. The device includes: a processing unit and a communication unit; the communication unit is configured to receive first data information sent from a terminal device; the first data information includes signal strength and distance; the signal strength is obtained by the terminal device measuring the communication signal of the network device within a preset time period; the preset time period is the time period between the last time the terminal device sent data to the network device and the current time; the distance is the distance from the terminal device to the network device; the processing unit is configured to determine a signal strength threshold based on the distance; the processing unit is further configured to determine a power adjustment coefficient corresponding to the signal strength; the communication unit is further configured to send the power adjustment coefficient and the signal strength threshold to the terminal device, so that the terminal device adjusts the transmission power of the previous transmission.

[0018] In conjunction with the fourth aspect, in one possible implementation, the processing unit is further configured to: determine a baseline value and an attenuation factor; the distance between the terminal device and the network device is inversely proportional to the baseline value; the attenuation factor is used to characterize the attenuation rate between signal strength and distance; and determine a signal strength threshold based on the baseline value, the attenuation factor, and the distance.

[0019] In conjunction with the fourth aspect, in one possible implementation, the communication unit is further configured to receive second data information sent by multiple terminal devices; the second data information includes a target signal strength and a transmission power corresponding to the target signal strength; the processing unit is further configured to: determine multiple signal strength groups; one signal strength group includes multiple different target signal strengths; for each signal strength group, based on the average value of the transmission power and the average value of the signal strength, determine a power adjustment coefficient corresponding to the signal strength group to obtain a power adjustment coefficient corresponding to each of the multiple signal strength groups, wherein the power adjustment coefficients corresponding to any two signal strength groups are different; and determine the coefficient corresponding to the target signal strength group as the power adjustment coefficient of the signal strength according to the target signal strength group corresponding to the signal strength; the multiple signal strength groups include the target signal strength group.

[0020] Fifthly, this application provides a transmit power adjustment device, which includes: a processor and a communication interface; the communication interface and the processor are coupled, and the processor is used to run computer programs or instructions to implement the transmit power adjustment method as described in the first aspect and any possible implementation of the first aspect.

[0021] In a sixth aspect, this application provides a computer-readable storage medium storing instructions that, when executed on a terminal, cause the terminal to perform the transmit power adjustment method as described in the first aspect and any possible implementation thereof.

[0022] In a seventh aspect, this application provides a transmit power adjustment device, which includes: a processor and a communication interface; the communication interface and the processor are coupled, and the processor is used to run computer programs or instructions to implement the transmit power adjustment method as described in the second aspect and any possible implementation of the second aspect.

[0023] Eighthly, this application provides a computer-readable storage medium storing instructions that, when executed on a terminal, cause the terminal to perform the transmit power adjustment method as described in the second aspect and any possible implementation thereof.

[0024] In this application, the name of the aforementioned transmission power adjustment device does not limit the device or functional module itself. In actual implementation, these devices or functional modules may appear under other names. As long as the function of each device or functional module is similar to that of this application, it falls within the scope of the claims of this application and its equivalents.

[0025] These or other aspects of this application will become more readily apparent in the following description.

[0026] Based on the above technical solution, the transmission power adjustment method provided in this application determines the power adjustment coefficient and signal strength threshold of the terminal device by the network device according to the signal strength and distance sent by the terminal device. Then, the terminal device accurately determines the power adjustment amount based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current moment. Finally, the transmission power of the terminal device is adjusted according to the power adjustment amount to determine the transmission power of the terminal device to send data to the network device for the current time. That is to say, if there is a problem with the transmission power in the previous time, this application can make timely adjustments, thereby ensuring that the transmission power can be flexibly adjusted periodically. Attached Figure Description

[0027] Figure 1 This application provides a schematic diagram of the structure of a transmission power adjustment system;

[0028] Figure 2 This application provides a schematic diagram of the structure of a transmission power adjustment device;

[0029] Figure 3 A flowchart of a method for adjusting transmit power provided in this application;

[0030] Figure 4 A flowchart of another transmission power adjustment method provided in this application;

[0031] Figure 5 A flowchart of another transmission power adjustment method provided in this application;

[0032] Figure 6 A flowchart of another transmission power adjustment method provided in this application;

[0033] Figure 7 A flowchart of another transmission power adjustment method provided in this application;

[0034] Figure 8 A flowchart of another transmission power adjustment method provided in this application;

[0035] Figure 9 A schematic diagram of another transmission power adjustment device provided in this application;

[0036] Figure 10 A schematic diagram of another transmission power adjustment device provided in this application. Detailed Implementation

[0037] The transmission power adjustment method and apparatus provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0038] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0039] The terms "first" and "second," etc., used in the specification and drawings of this application are used to distinguish different objects or to distinguish different treatments of the same object, rather than to describe a specific order of objects.

[0040] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0041] It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0042] Currently, power adjustment of terminal devices is an important technology in mobile communication systems, used to manage and optimize the transmit power of terminal devices. Power adjustment is introduced to achieve better signal coverage and capacity utilization. Specifically, it is part of power control, designed to ensure that terminal devices communicate with appropriate power within the communication system. Power control can be used for both uplink communication from the terminal device to the base station (terminal transmit power control) and downlink communication from the base station to the terminal device (base station transmit power control). Power adjustment is also related to energy management. By dynamically adjusting the terminal's transmit power, energy consumption can be reduced and battery life extended. In mobile devices, power adjustment technology can adaptively adjust transmit power based on factors such as signal strength, distance, and battery status to achieve energy savings.

[0043] Among the relevant technologies, there are various existing terminal power adjustment technology solutions, some of which include: 1. Open Loop Power Control: This technology adjusts the terminal's transmit power directly based on channel quality indicators (such as signal strength, signal-to-noise ratio, etc.) according to a predefined power control strategy. Open Loop power control is usually used in the initial access and call setup phases to ensure that the signal sent by the device can be correctly received by the base station. However, this method has the following problems: (1) Lack of dynamism: Open Loop control adjusts power according to predefined rules and cannot respond to changes in actual channel conditions in a timely manner; (2) Inability to cope with interference: Open Loop control usually cannot effectively handle interference situations because it mainly relies on signal quality indicators for power adjustment.

[0044] 2. Closed Loop Power Control: This technology achieves dynamic power control by sending control commands from the base station to the terminal and feeding back the terminal's actual channel quality information. The terminal adjusts its transmit power according to the base station's commands to maintain good signal quality. Closed Loop power control is usually used in continuous communication to adaptively adjust the terminal's transmit power. However, this method has the following problems: (1) Closed Loop control requires feedback information exchange between the base station and the terminal, which increases the system's control overhead and latency. (2) Link quality error: Due to changes in channel conditions and measurement errors, Closed Loop control may have errors in link quality estimation, affecting the accuracy of power adjustment.

[0045] 3. Fast Power Control: This is a fast-response power control technology used to quickly adjust the terminal's transmit power to cope with changes in transient channel conditions. For example, when the terminal is moving at high speed or encountering a rapidly fading channel, Fast Power Control can adjust the power in a short time to maintain good signal quality. However, this method has the following problems: (1) Fast power adjustment in response to channel changes requires more frequent power updates, which may lead to increased equipment power consumption. (2) Due to the need for frequent power adjustments, Fast Power Control may introduce additional signaling overhead.

[0046] 4. Hybrid Power Control: This is a hybrid scheme that combines Open Loop and Closed Loop power control. In Hybrid Power Control, the terminal first adjusts the power using the Open Loop method, and then performs Closed Loop adjustment based on feedback information from the base station. This hybrid scheme can provide good signal quality and interference management while reducing control overhead. However, this method has the following problems: (1) Hybrid Power Control combines Open Loop and Closed Loop control, which increases the complexity of the algorithm and control logic. (2) The optimization process of determining appropriate Open Loop and Closed Loop control parameters may be challenging.

[0047] 5. Power Control Grouping: This is a method of grouping terminal devices according to channel conditions or other specific criteria and setting different power control strategies for each group. By grouping according to the needs and characteristics of different groups, power control parameters can be adjusted more precisely to provide better signal coverage and capacity utilization. However, this method has the following problems: (1) Power Control Grouping requires reasonable group design and management, which involves the complexity of channel condition assessment and terminal device classification. (2) Maintaining power control strategies for different groups may increase management overhead and system complexity.

[0048] Currently, there are various power adjustment technologies for terminals, including Open Loop Power Control (OLPC), Closed Loop Power Control (CLPC), Fast Power Control, Hybrid Power Control, and Power Control Grouping. Most of these terminal power adjustment technologies lack dynamism and cannot adjust power in real time. Therefore, how to accurately adjust the transmit power in real time is a pressing problem that needs to be solved.

[0049] To address the problems in the prior art, this application provides a method for adjusting transmission power. The method involves a network device determining a power adjustment coefficient and a signal strength threshold for the terminal device based on the signal strength and distance transmitted by the terminal device. Then, the terminal device accurately determines the power adjustment amount based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current moment. Finally, the terminal device adjusts its previous transmission power based on this power adjustment amount to determine the current transmission power for sending data to the network device. In other words, if a problem occurred with the previous transmission power, this application can make timely adjustments, thereby ensuring flexible, periodic adjustments to the transmission power.

[0050] Figure 1 This is a schematic diagram of the structure of a transmit power adjustment system 100 provided in an embodiment of this application, as shown below. Figure 1 As shown, the transmit power adjustment system 100 includes a network device 101, a terminal device 102, and multiple terminal devices 103.

[0051] Network device 101 is used to determine the power adjustment factor and signal strength threshold corresponding to the signal strength.

[0052] Terminal device 102 is used to determine the power adjustment amount of the terminal device based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current time; and then adjust the previous transmission power to obtain the transmission power of the terminal device for the current transmission of data to the network device.

[0053] Multiple terminal devices 103 are used to send second data information to the network device. The second data information is used to determine the power adjustment coefficient corresponding to the signal strength group, so as to obtain the power adjustment coefficient corresponding to each signal strength group in the multiple signal strength groups.

[0054] Figure 2 This is a schematic diagram of a transmission power adjustment device provided in an embodiment of this application, as shown below. Figure 2 As shown, the transmit power adjustment device 200 includes at least one processor 201, a communication line 202, and at least one communication interface 204, and may also include a memory 203. The processor 201, memory 203, and communication interface 204 can be connected via the communication line 202.

[0055] The processor 201 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application, such as one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs).

[0056] Communication line 202 may include a path for transmitting information between the aforementioned components.

[0057] The communication interface 204 is used to communicate with other devices or communication networks. It can use any transceiver-like device, such as Ethernet, radio access network (RAN), wireless local area network (WLAN), etc.

[0058] The memory 203 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of including or storing desired program code having the form of instructions or data structures and accessible by a computer, but not limited thereto.

[0059] In one possible design, the memory 203 can exist independently of the processor 201, meaning the memory 203 can be an external memory of the processor 201. In this case, the memory 203 can be connected to the processor 201 via the communication line 202 to store execution instructions or application code, and its execution is controlled by the processor 201 to implement the network quality determination method provided in the following embodiments of this application. In another possible design, the memory 203 can also be integrated with the processor 201, meaning the memory 203 can be an internal memory of the processor 201. For example, the memory 203 can be a cache, which can be used to temporarily store some data and instruction information.

[0060] As one possible implementation, processor 201 may include one or more CPUs, for example Figure 2 CPU0 and CPU1 in the example. Alternatively, the transmit power adjustment device 200 may include multiple processors, such as... Figure 2 The processors 201 and 207 are included. Alternatively, the transmit power adjustment device 200 may also include an output device 205 and an input device 206.

[0061] Through the above description of the implementation methods, those skilled in the art will clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the network node can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, modules, and network nodes described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0062] like Figure 3 The diagram shown is a flowchart of a transmission power adjustment method provided in an embodiment of this application. The transmission power adjustment method provided in this embodiment can be applied to applications such as... Figure 3 In the transmission power adjustment device shown, the device positioning method provided in this application embodiment can be implemented through the following steps.

[0063] S301. The terminal device sends first data information to the network device. Correspondingly, the network device receives the first data information sent by the terminal device.

[0064] The first data information includes signal strength and distance; the signal strength is obtained by measuring the communication signal of the network device by the terminal device within a preset time period; the preset time period is the time period between the last time the terminal device sent data to the network device and the current time; and the distance is the distance between the terminal device and the network device.

[0065] For example, terminal device A reports a large amount of MR data to base station K. The MR data includes the signal strength of base station K measured by terminal device A and the distance between terminal device A and base station K.

[0066] It is understood that the scenario in which this application embodiment is applied is the power adjustment after the terminal device sends the first data information to the network device for the first time. That is to say, the previous time can be the first time or the second, third, ... nth time after the first time.

[0067] S302. Network devices determine signal strength thresholds based on distance.

[0068] As one possible implementation, the above-mentioned S302 process can be as follows: Determine the optimal baseline value and attenuation factor based on the distance from multiple terminal devices to the network device and the signal strength of the multiple terminal devices. Then, determine the signal strength threshold based on the distance from terminal device A to the network device, the baseline value, and the attenuation factor.

[0069] S303. Network devices determine the power adjustment coefficient corresponding to the signal strength.

[0070] In one possible implementation, different signal strengths correspond to different signal strength groups. The power adjustment coefficient corresponding to the signal strength group is determined based on the signal strength group, which is the power adjustment coefficient corresponding to the signal strength.

[0071] S304. The network device sends a power adjustment factor and a signal strength threshold to the terminal device. Correspondingly, the terminal device receives the power adjustment factor and signal strength threshold from the network device.

[0072] Among them, the power adjustment coefficient corresponds to a set of signal strengths; the signal strength threshold is determined based on the distance between the terminal device and the network device.

[0073] S305. The terminal device determines the power adjustment amount based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current moment.

[0074] In one possible implementation, the terminal device first determines the difference between the power adjustment coefficient and the signal strength threshold, and then determines the power adjustment amount of the terminal device based on the product of the difference and the signal strength.

[0075] S306. The terminal device adjusts its previous transmission power based on the terminal device's power adjustment amount to obtain the current transmission power of the terminal device sending data to the network device.

[0076] As one possible implementation, the above-mentioned S306 implementation process can be as follows: when the power adjustment amount of the terminal device is greater than or equal to a preset threshold, the transmission power of the terminal device for the current transmission of data to the network device is determined based on the sum of the power adjustment amount of the terminal device and the previous transmission power.

[0077] In one possible implementation, the previous transmit power could refer to the initial transmit power of the terminal device when it began communication or connected to the base station. When the terminal device establishes communication with the base station, it needs to send signals to handshake and establish a connection. During this process, the terminal device needs to select an appropriate initial transmit power to ensure that the base station can correctly receive the terminal device's signals.

[0078] For example, the sum of the power adjustment amount of 3dBm and the previous transmission power of 16dBm is determined as the target transmission power of the terminal device.

[0079] Understandably, the choice of initial transmit power is crucial for the successful establishment and maintenance of communication. If the initial transmit power is too low, the base station may be unable to receive the signal from the terminal device, leading to communication establishment failure or unstable connection. Conversely, if the initial transmit power is too high, it may result in increased interference, excessive energy consumption, or degraded signal quality.

[0080] Therefore, the terminal device needs to select an appropriate initial transmit power to establish a reliable communication connection with the base station. This initial transmit power can be determined based on factors such as network planning, system requirements, signal environment, and adaptive algorithms. Typically, power adjustments and tests are performed during system deployment and optimization to select the optimal initial transmit power. Understandably, if the previous transmit power is the initial transmit power, the terminal device adjusts the initial transmit power to determine the transmit power for the second data transmission to the network device. If the previous transmit power is the second transmit power, the terminal device adjusts the second transmit power to determine the transmit power for the third data transmission to the network device. Based on the above technical solution, the transmission power adjustment method provided in this application determines the power adjustment coefficient and signal strength threshold of the terminal device by the network device according to the signal strength and distance sent by the terminal device. Then, the terminal device accurately determines the power adjustment amount based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current moment. Finally, the transmission power of the terminal device is adjusted according to the power adjustment amount to determine the transmission power of the terminal device to send data to the network device for the current time. That is to say, if there is a problem with the transmission power in the previous time, this application can make timely adjustments, thereby ensuring that the transmission power can be flexibly adjusted periodically.

[0081] In one possible implementation, combining Figure 3 ,like Figure 4 As shown, the terminal device will stop adjusting the transmission power under certain conditions, which can be achieved through the following S401.

[0082] S401. If the power adjustment amount of the terminal device is less than the preset threshold, the terminal device determines the previous transmission power as the transmission power of the terminal device for the current data transmission to the network device.

[0083] In one possible implementation, the above S401 process can be as follows: the terminal device continuously repeats the above steps, and when the power adjustment amount is less than 0.1dB, it can be considered that the power adjustment is close to the optimal state, and further adjustment is stopped. The previous transmission power is determined as the transmission power of the terminal device for the current transmission of data to the network device.

[0084] Based on the above technical solution, the embodiments of this application continuously adjust the power adjustment amount. When the conditions are met, it indicates that the power adjustment is in the optimal state, and the previous transmission power can be determined as the current transmission power.

[0085] In one possible implementation, combining Figure 4 ,like Figure 5As shown in the above S305, the terminal device determines the power adjustment amount based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current moment. Specifically, this can be achieved through the following S501.

[0086] S501. The terminal device determines the power adjustment amount based on the product of the difference between the signal strength threshold and the signal strength of the network device measured at the current time and the power adjustment coefficient.

[0087] In one possible implementation, when the signal strength is below a certain threshold for a duration T0, the terminal device can increase its transmission power according to the following formula to better communicate with the base station.

[0088] The power adjustment A of the terminal device satisfies the following formula: A=k1*(RSRP_threshold-RSRP); where k1 is the power adjustment coefficient; RSRP_threshold is the signal strength threshold; and RSRP is the signal strength of the network device measured by the terminal device at the current moment.

[0089] For example, A = -0.17[-70dBm-(-101dBm)] = -5.27.

[0090] In another possible implementation, when the signal strength is higher than or equal to a certain threshold for a duration T0, the terminal device can reduce the transmission power according to the following formula to save power.

[0091] The power adjustment A of the terminal equipment satisfies the following formula: A=k1*(RSRP-RSRP_threshold);

[0092] Where k1 is the power adjustment coefficient; RSRP_threshold is the signal strength threshold; and RSRP is the signal strength of the network device measured by the terminal device at the current moment.

[0093] For example, A = -0.17[-60dBm-(-70dBm)] = -1.7.

[0094] Based on the above technical solution, the embodiments of this application have different processing methods for different signal strength thresholds and different signal strength conditions, so as to accurately determine the power adjustment amount of the terminal device.

[0095] In one possible implementation, combining Figure 5 ,like Figure 6 As shown in the above S302, the network device determines the signal strength threshold based on distance, which can be specifically implemented through the following S601-S602.

[0096] S601, Network equipment determines baseline values ​​and attenuation factors.

[0097] Among them, the distance between the terminal device and the network device is inversely proportional to the baseline value; the attenuation factor is used to characterize the attenuation rate between signal strength and distance.

[0098] In one possible implementation, the subsequent baseline value is denoted as A, and the attenuation factor is denoted as B. The network device acquires the signal strength and distance from multiple terminal devices; first, an objective function is constructed: based on the correlation formula between signal strength threshold and distance (e.g., signal strength threshold = A * exp(-B * distance), an objective function is defined. The objective function aims to minimize the difference between the actual data and the fitted model.

[0099] A commonly used objective function is the Sum of Squared Errors (SSE), defined as follows: Objective function = Σ(y_actual - y_predicted)2;

[0100] Where y_actual represents the observed value of the actual data, and y_predicted represents the predicted value of the fitted model.

[0101] The objective function is obtained by summing the squared differences of all data points. Initial parameter estimation: Given a set of baseline values ​​and initial values ​​for the attenuation factor. Then, the objective function is minimized using least squares optimization algorithms, such as the Levenberg-Marquardt algorithm or nonlinear least squares methods, to find the optimal parameter estimates. The parameter estimates are iteratively adjusted to minimize the objective function. In each iteration, the algorithm adjusts the magnitude and direction of the parameter values ​​based on the fit between the actual data and the current parameter estimates. A convergence criterion is defined, such as the change in the objective function being less than a certain threshold, or the change in the parameter estimates being less than a certain threshold. When the convergence criterion is met, the algorithm stops iterating and obtains the final parameter estimates.

[0102] For the obtained optimal parameter estimates, the quality of the fitted model is evaluated by calculating a fitting error metric, such as SSE. A smaller fitting error indicates that the model fits the actual data well. By performing the above steps, we can use the least squares method to fit the parameters, finding the optimal baseline parameter estimates A and attenuation factor B, so that the fitted model best describes the actual data. In this way, we can predict the correlation between base station signal strength and distance based on these parameter values ​​and apply them to the decision-making and optimization process of terminal power adjustment.

[0103] It is worth noting that the baseline value and attenuation factor are determined by obtaining the signal strength and distance of multiple different terminal devices through network equipment.

[0104] S602. Network devices determine the signal strength threshold based on baseline values, attenuation factors, and distance.

[0105] In one possible implementation, the above S502 implementation process can be as follows: the signal strength threshold satisfies the following formula: signal strength threshold RSRP_threshold=A*exp(-B*distance);

[0106] Where A is the baseline value; B is the attenuation factor; exp is the exponential function; and distance is the distance from a terminal device to a network device.

[0107] It is worth noting the exponential decay: the exponent (-B*distance) in the exponential function exp(-B*distance) represents a negative multiple of the distance. Due to the characteristics of the exponential function, as the distance between the terminal device and the network device increases, the value of the exponent decreases, resulting in an exponential decay trend in the value of the entire function.

[0108] Parameter A can also be understood as the baseline value or the maximum value. When the distance is zero, the function's value is A, representing the power or intensity when the two objects are very close.

[0109] The value of parameter B determines the rate at which the base station signal strength attenuates with increasing distance. A larger attenuation factor B indicates a faster signal attenuation, while a smaller attenuation factor B indicates a slower signal attenuation. A suitable B value better describes the attenuation characteristics of the base station signal, thus providing a more accurate reference during power adjustment. The attenuation factor B is related to the specific channel environment and wireless transmission characteristics; different scenarios may require different attenuation factors B to adapt to different attenuation conditions. Therefore,

[0110] In practical applications, the attenuation factor B needs to be adjusted based on the specific environment and dataset to achieve optimal power adjustment performance. Simultaneously, the attenuation factor B determines the rate at which the base station signal strength decreases with increasing distance; the value of parameter B is approximately inversely proportional to distance. As distance increases, the exponential term -B*distance becomes smaller, leading to a decrease in the value of exp(-B*distance). Therefore, the larger the attenuation factor B, the faster the exponential term decays, and the faster the base station signal strength decreases with increasing distance. In other words, an increase in the attenuation factor B means that the signal strength decreases rapidly with increasing distance, while a decrease in the attenuation factor B indicates that the signal strength decreases relatively slowly with increasing distance.

[0111] In summary, the formula A*exp(-B*distance) describes the exponential attenuation of a base station's signal as distance increases. The values ​​of parameters A and B can be determined based on specific application scenarios and data fitting to adapt to actual distance and magnitude variations. This functional form is commonly used to describe distance-related phenomena such as attenuation and attenuation compensation, including wireless signal attenuation and light intensity attenuation.

[0112] The exponential function (exp) is used because, in some cases, the relationship between base station signal strength and distance may exhibit an exponential decay trend. The exponential function can well describe this decay relationship. In wireless communication, signal propagation is affected by factors such as free-space path loss, multipath effects, obstruction, and interference. Free-space path loss refers to the signal strength attenuation caused by increasing distance as the signal propagates in free space. Path loss typically exhibits an exponential relationship. Using an exponential function can better simulate the characteristics of path loss. The exponential function has the characteristic of exponential decay, rapidly reducing signal strength with increasing distance. This is consistent with the observation in reality that increasing distance leads to a gradual weakening of signal strength.

[0113] In one possible implementation, combining Figure 6 ,like Figure 7 As shown, the network device also needs to determine the power adjustment coefficient corresponding to each signal strength group in multiple signal strength groups, which can be achieved through the following S701-S703.

[0114] S701, The network device receives second data information sent by multiple terminal devices.

[0115] The second data information includes the target signal strength and the transmission power corresponding to the target signal strength.

[0116] For example, base station K receives a target signal strength of -100dBm and a transmit power of 17dBm from terminal device B, a target signal strength of -102dBm and a transmit power of 15dBm from terminal device C, a target signal strength of -103dBm and a transmit power of 20dBm from terminal device D, and a target signal strength of -104dBm and a transmit power of...

[0117] The target signal strength transmitted by terminal device F is -105dBm and the transmission power is 19dBm, while the target signal strength transmitted by terminal device G is -107dBm and the transmission power is 16dBm.

[0118] S702, Network devices identify multiple signal strength groups.

[0119] One signal strength group includes multiple different target signal strengths.

[0120] Referring to the example in S701, the second data information is grouped according to the target signal strength. Data within each signal strength range is grouped into one group. For example, terminal devices with target signal strengths from -100dBm to -103dBm are grouped into one group, that is, terminal devices B, C, and D are the first signal strength group; terminal devices with target signal strengths from -104dBm to -107dBm are grouped into another group, that is, terminal devices E, F, and G are the second signal strength group.

[0121] S703. For each signal strength group, the network device determines the power adjustment coefficient corresponding to the signal strength group based on the average value of the transmit power and the average value of the signal strength, so as to obtain the power adjustment coefficient corresponding to each signal strength group among multiple signal strength groups.

[0122] Among them, the power adjustment coefficients corresponding to any two signal strength groups are different.

[0123] Referring to the example in S702, the average transmit power of the first signal strength group is determined to be (17dBm+15dBm+20dBm) / 3 = 17.3dBm; the average signal strength of the first signal strength group is determined to be (-100dBm+-102dBm+-103dBm) / 3 = -101.6dBm; and the network device then determines the power adjustment coefficient of the first signal strength group to be -0.17.

[0124] The average transmit power of the first signal strength group is determined to be (22 dBm + 19 dBm + 16 dBm) / 3 = 19 dBm; the average signal strength of the first signal strength group is determined to be (-104 dBm + -105 dBm + -107 dBm) / 3 = -105.3 dBm; therefore, the network device determines the power adjustment coefficient of the first signal strength group to be -0.18.

[0125] Based on the above technical solution, the embodiments of this application determine the power adjustment coefficient of different groups by the average value of signal strength and the average value of transmission power, and know the approximate relationship between transmission power and base station signal strength in different signal groups.

[0126] In one possible implementation, combining Figure 7 ,like Figure 8 As shown in the above S303, the network device determines the power adjustment coefficient corresponding to the signal strength, which can be specifically achieved through the following S801.

[0127] S801. The network device determines the power adjustment coefficient of the signal strength based on the target signal strength group corresponding to the signal strength.

[0128] Among them, multiple signal strength groups include the target signal strength group.

[0129] Referring to the example in S703, the signal strength -101dBm corresponds to the first signal strength group, and the power adjustment coefficient -0.17 corresponding to the first signal strength group is determined as the power adjustment coefficient for the signal strength -101dBm.

[0130] In summary, the embodiments of this application demonstrate dynamism and adaptability: by monitoring the base station signal strength and distance in real time and using parameters obtained through fitting methods to calculate the theoretical transmit power, the terminal power can be dynamically adjusted. This enables the terminal to adapt to different channel environments and distance changes in real time, providing stable signal quality.

[0131] Flexibility and Accuracy: The embodiments of this application obtain optimal parameter values ​​through a fitting method, which can more accurately describe the relationship between base station signal strength and power. This accuracy can provide finer power adjustment, enabling the terminal to transmit appropriate power under different distances and signal strength conditions, thereby balancing performance and energy consumption.

[0132] Scalability and Applicability: The embodiments of this application are based on the correlation between base station signal strength and distance, and do not depend on specific communication technologies or hardware devices. Therefore, it has high scalability and applicability, and can be applied to various mobile communication systems and terminal devices.

[0133] Simplified Parameter Optimization: By using a fitting method to determine parameter values, this application provides a simplified way to determine optimal parameters compared to manual adjustment or complex parameter optimization methods. This reduces the complexity of system deployment and maintenance, and decreases the workload of parameter tuning.

[0134] Energy Efficiency and Power Management: The embodiments of this application optimize power management and reduce unnecessary power consumption by adjusting terminal power based on distance. This helps extend the battery life of terminal devices and improve energy efficiency. By considering the correlation between base station signal strength and distance, a fitting method is used to calculate the theoretical transmit power, and the terminal power is adjusted in real time to optimize signal quality and power management. It offers advantages such as dynamism, flexibility, accuracy, and simplified parameter optimization, making it suitable for various mobile communication systems and terminal devices.

[0135] This application embodiment can divide the transmit power adjustment device into functional modules or functional units according to the above method example. For example, each function can be divided into a separate functional module or functional unit, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or in software functional modules or functional units. The module or unit division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0136] like Figure 9 The diagram shows a schematic of a transmission power adjustment device 900 provided in an embodiment of this application, applied to a terminal device. The device includes a processing unit 901 and a communication unit 902. The communication unit 902 is used to send first data information to a network device. The first data information includes signal strength and distance. The signal strength is obtained by measuring the communication signal of the network device within a preset time period. The preset time period is the time between the last time the terminal device sent data to the network device and the current time. The distance is the distance between the terminal device and the network device. The communication unit 902 is also used to receive a power adjustment coefficient and a signal strength threshold from the network device. The power adjustment coefficient corresponds to a set of signal strengths. The signal strength threshold is determined based on the distance between the terminal device and the network device. The processing unit 901 is used to determine the power adjustment amount of the terminal device based on the power adjustment coefficient, the signal strength threshold, and the signal strength of the network device measured at the current time. The processing unit 901 is also used to adjust the previous transmission power based on the power adjustment amount of the terminal device to obtain the transmission power of the terminal device currently sending data to the network device.

[0137] Optionally, the processing unit 901 is further configured to: determine the transmission power of the terminal device for the current transmission of data to the network device based on the sum of the power adjustment amount of the terminal device and the previous transmission power when the power adjustment amount of the terminal device is greater than or equal to a preset threshold.

[0138] Optionally, the processing unit 901 is further configured to: determine the previous transmission power as the transmission power of the terminal device for the current transmission of data to the network device when the power adjustment amount of the terminal device is less than a preset threshold.

[0139] Optionally, the processing unit 901 is further configured to: determine the power adjustment amount of the terminal device based on the product of the signal strength threshold, the difference between the signal strength of the network device measured at the current time, and the power adjustment coefficient.

[0140] like Figure 10The diagram shown is a schematic representation of a transmit power adjustment device 1000 provided in an embodiment of this application. Applied to a network device, the device includes: a processing unit 1001 and a communication unit 1002. The communication unit 1002 is used to receive first data information sent from a terminal device. The first data information includes signal strength and distance. The signal strength is obtained by measuring the communication signal of the network device from the terminal device within a preset time period. The preset time period is the time between the last time the terminal device sent data to the network device and the current time. The distance is the distance between the terminal device and the network device. The processing unit 1001 is used to determine a signal strength threshold based on the distance. The processing unit 1001 is also used to determine a power adjustment coefficient corresponding to the signal strength. The communication unit 1002 is also used to send the power adjustment coefficient and the signal strength threshold to the terminal device.

[0141] Optionally, the processing unit 1001 is further configured to: determine a baseline value and an attenuation factor; the distance between the terminal device and the network device is inversely proportional to the baseline value; the attenuation factor is used to characterize the attenuation rate between signal strength and distance; and determine a signal strength threshold based on the baseline value, the attenuation factor, and the distance.

[0142] Optionally, the communication unit 1002 is further configured to receive second data information sent by multiple terminal devices; the second data information includes a target signal strength and a transmission power corresponding to the target signal strength; the processing unit 1001 is further configured to: determine multiple signal strength groups; one signal strength group includes multiple different target signal strengths; for each signal strength group, based on the average value of the transmission power and the average value of the signal strength, determine the power adjustment coefficient corresponding to the signal strength group to obtain the power adjustment coefficient corresponding to each signal strength group in the multiple signal strength groups, wherein the power adjustment coefficients corresponding to any two signal strength groups are different; and determine the coefficient corresponding to the target signal strength group as the power adjustment coefficient of the signal strength according to the target signal strength group; the multiple signal strength groups include the target signal strength group.

[0143] When implemented in hardware, the communication unit 902 or communication unit 1002 in this embodiment can be integrated onto the communication interface, and the processing unit 901 or processing unit 1001 can be integrated onto the processor. The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method of transmit power adjustment, the method comprising: The method applied to a terminal device comprises: sending first data information to a network device; the first data information comprises signal strength and distance; the signal strength is obtained by measuring a communication signal of the network device by the terminal device in a preset time period; the preset time period is a time period between a time when the terminal device last sent data to the network device and a current time; the distance is a distance from the terminal device to the network device; receiving a power adjustment coefficient and a signal strength threshold value from the network device; the power adjustment coefficient corresponds to a group of signal strengths; the signal strength threshold value is determined according to the distance from the terminal device to the network device; in a case where the signal strength is less than the signal strength threshold value, determining a power adjustment amount of the terminal device according to a product of a difference between the signal strength threshold value and the signal strength of the network device measured at the current time and the power adjustment coefficient; in a case where the signal strength is greater than or equal to the signal strength threshold value, determining the power adjustment amount of the terminal device according to a product of a difference between the signal strength of the network device measured at the current time and the signal strength threshold value and the power adjustment coefficient; adjusting the last transmission power based on the power adjustment amount of the terminal device to obtain a transmission power of the terminal device for sending data to the network device at the current time.

2. The method of claim 1, wherein, The method further comprises: in a case where the power adjustment amount of the terminal device is greater than or equal to a preset threshold value, determining the transmission power of the terminal device for sending data to the network device at the current time based on a sum of the power adjustment amount of the terminal device and the last transmission power.

3. The method of claim 2, wherein, The method further comprises: in a case where the power adjustment amount of the terminal device is less than the preset threshold value, determining the last transmission power as the transmission power of the terminal device for sending data to the network device at the current time.

4. A method of transmit power adjustment, characterized by, The method applied to a network device comprises: receiving first data information sent by a terminal device; the first data information comprises signal strength and distance; the signal strength is obtained by measuring a communication signal of the network device by the terminal device in a preset time period; the preset time period is a time period between a time when the terminal device last sent data to the network device and a current time; the distance is a distance from the terminal device to the network device; determining a signal strength threshold value based on the distance; determining a power adjustment coefficient corresponding to the signal strength; sending the power adjustment coefficient and the signal strength threshold value to the terminal device to enable the terminal device to adjust the last transmission power; the power adjustment coefficient corresponds to a group of signal strengths; the signal strength threshold value is determined according to the distance from the terminal device to the network device; The terminal device is configured to: determine a power adjustment amount of the terminal device according to a product of a difference between the signal strength threshold and a signal strength of the network device measured at a current moment and the power adjustment coefficient, in a case where the signal strength is less than the signal strength threshold; determine the power adjustment amount of the terminal device according to a product of a difference between the signal strength threshold and the signal strength of the network device measured at the current moment and the power adjustment coefficient, in a case where the signal strength is greater than or equal to the signal strength threshold; and adjust a last transmission power based on the power adjustment amount of the terminal device to obtain a transmission power of the terminal device for sending data to the network device at a current time.

5. The method of claim 4, wherein, The determining the signal strength threshold based on the distance comprises: determining a baseline value and an attenuation factor; the distance between the terminal device and the network device is inversely proportional to the baseline value; and the attenuation factor is used to represent an attenuation rate between the signal strength and the distance; determining the signal strength threshold based on the baseline value, the attenuation factor, and the distance.

6. The method of claim 4, wherein, The method further comprises: receiving second data information sent by a plurality of terminal devices; the second data information comprises target signal strengths and transmission powers corresponding to the target signal strengths; determining a plurality of signal strength groups; one signal strength group comprises a plurality of different target signal strengths; for each signal strength group, determining a power adjustment coefficient corresponding to the signal strength group based on an average value of the transmission powers and an average value of the signal strengths, to obtain the power adjustment coefficient corresponding to each signal strength group in the plurality of signal strength groups, and the power adjustment coefficients corresponding to any two signal strength groups being different; The determining the power adjustment coefficient corresponding to the signal strength comprises: determining the power adjustment coefficient corresponding to the signal strength according to a target signal strength group corresponding to the signal strength, and determining the power adjustment coefficient corresponding to the target signal strength group as the power adjustment coefficient of the signal strength; and the plurality of signal strength groups comprises the target signal strength group.

7. A transmit power adjustment apparatus, characterized by comprising: The apparatus is applied to a terminal device, and the apparatus comprises a processing unit and a communication unit. The communication unit is configured to send first data information to a network device; the first data information comprises a signal strength and a distance; the signal strength is obtained by measuring a communication signal of the network device by the terminal device within a preset time period; the preset time period is a time period between a time when the terminal device last sent data to the network device and a current time; and the distance is a distance from the terminal device to the network device. The communication unit is further configured to receive a power adjustment coefficient and a signal strength threshold from the network device; the power adjustment coefficient corresponds to a group of signal strengths; and the signal strength threshold is determined according to the distance from the terminal device to the network device. The processing unit is configured to: determine, when the signal strength is less than the signal strength threshold, a power adjustment amount of the terminal device according to a product of a difference between the signal strength threshold and a signal strength of the network device measured at a current time and the power adjustment coefficient; determine, when the signal strength is greater than or equal to the signal strength threshold, the power adjustment amount of the terminal device according to a product of a difference between the signal strength of the network device measured at the current time and the signal strength threshold and the power adjustment coefficient; and adjust, based on the power adjustment amount of the terminal device, a last transmission power to obtain a transmission power of the terminal device for sending data to the network device at a current time.

8. The apparatus of claim 7, wherein, The processing unit is further configured to: determine, when the power adjustment amount of the terminal device is greater than or equal to a preset threshold, the transmission power of the terminal device for sending data to the network device at the current time based on a sum of the power adjustment amount of the terminal device and the last transmission power.

9. The apparatus of claim 7, wherein, The processing unit is further configured to: determine, when the power adjustment amount of the terminal device is less than the preset threshold, the last transmission power as the transmission power of the terminal device for sending data to the network device at the current time.

10. A transmit power adjustment apparatus, characterized by comprising: The apparatus is applied to a network device, and the apparatus includes a processing unit and a communication unit. The communication unit is configured to receive first data information sent by a terminal device, wherein the first data information includes a signal strength and a distance; the signal strength is obtained by the terminal device by measuring a communication signal of the network device in a preset time period; the preset time period is a time period between a time when the terminal device last sent data to the network device and a current time; and the distance is a distance between the terminal device and the network device. The processing unit is configured to determine a signal strength threshold based on the distance. The processing unit is further configured to determine a power adjustment coefficient corresponding to the signal strength. The communication unit is further configured to send the power adjustment coefficient and the signal strength threshold to the terminal device, so that the terminal device adjusts a last transmission power; the terminal device is configured to: determine, when the signal strength is less than the signal strength threshold, a power adjustment amount of the terminal device according to a product of a difference between the signal strength threshold and a signal strength of the network device measured at a current time and the power adjustment coefficient; determine, when the signal strength is greater than or equal to the signal strength threshold, the power adjustment amount of the terminal device according to a product of a difference between the signal strength of the network device measured at the current time and the signal strength threshold and the power adjustment coefficient; and adjust, based on the power adjustment amount of the terminal device, the last transmission power to obtain a transmission power of the terminal device for sending data to the network device at a current time.

11. The apparatus of claim 10, wherein, The processing unit is further configured to: determining a baseline value and an attenuation factor; the distance between the terminal device and the network device is inversely proportional to the baseline value; the attenuation factor is used to represent the attenuation rate between signal strength and distance; determining the signal strength threshold based on the baseline value, the attenuation factor, and the distance.

12. The apparatus of claim 10, wherein, The communication unit is further configured to receive second data information transmitted by a plurality of terminal devices; the second data information includes target signal strength and corresponding transmission power; The processing unit is further configured to determine a plurality of signal strength groups; one signal strength group includes a plurality of different target signal strengths; For each signal strength group, a power adjustment coefficient corresponding to the signal strength group is determined based on the average of the transmission power and the average of the signal strength, so as to obtain the power adjustment coefficient corresponding to each signal strength group in the plurality of signal strength groups, and the power adjustment coefficients corresponding to any two signal strength groups are different; According to the target signal strength group corresponding to the signal strength, and determining the coefficient corresponding to the target signal strength group as the power adjustment coefficient of the signal strength; the plurality of signal strength groups include the target signal strength group.

13. A transmit power adjustment apparatus, characterized by comprising: comprising: a processor and a communication interface; the communication interface and the processor are coupled, and the processor is configured to run computer programs or instructions to implement the transmission power adjustment method as described in any one of claims 1-6.

14. A computer-readable storage medium having stored therein instructions, the computer-readable storage medium comprising: When a computer executes the instructions, the computer executes the transmission power adjustment method as described in any one of claims 1-6.

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