CN114710827A - Power adjustment method, device, terminal, storage medium and computer program product - Google Patents

Abstract

The application relates to a power adjustment method, a device, a terminal, a storage medium and a computer program product. The method comprises the following steps: acquiring the current target reflected power of an antenna in a terminal; determining the current target SAR value of the antenna according to the target reflected power; and determining whether a power adjustment condition is met or not according to the target SAR value, and if the power adjustment condition is met, adjusting the transmitting power of the antenna. By adopting the method, the accuracy of adjusting the transmitting power of the antenna can be improved.

Description

Power adjustment method, apparatus, terminal, storage medium and computer program product

technical field

The present application relates to the field of mobile communication technologies, and in particular, to a power adjustment method, apparatus, terminal, storage medium and computer program product.

Background technique

When a user communicates with a terminal, the antenna of the mobile terminal usually transmits electromagnetic waves with relatively high power, so that the electromagnetic radiation energy absorbed by the user is usually relatively large, which affects the user's health. The electromagnetic radiation energy absorbed by the user can be measured by a SAR (Specific Absorption Rate, specific absorption ratio) value. The higher the SAR value, the greater the electromagnetic radiation energy absorbed by the user.

In order to ensure the user's health, it is necessary to monitor the SAR value in real time during the working process of the terminal, and adjust the transmit power according to the SAR value. However, the prior art has the problem of low SAR value monitoring accuracy. Due to the low accuracy, the adjustment range of the transmit power is too large, resulting in the adjusted transmit power being too small, thereby affecting the communication quality.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a power adjustment method, apparatus, terminal, storage medium, and computer program product that can improve the accuracy of adjusting the transmit power of the antenna in response to the above technical problems.

In a first aspect, a power adjustment method is provided, the method comprising:

Obtain the current target reflected power of the antenna in the terminal;

Determine the current target SAR value of the antenna according to the target reflected power;

Whether the power adjustment condition is satisfied is determined according to the target SAR value, and if the power adjustment condition is satisfied, the transmission power of the antenna is adjusted.

In a second aspect, a power adjustment device is provided, the device comprising:

an acquisition module, used to acquire the current target reflected power of the antenna in the terminal;

a first determining module, configured to determine the current target SAR value of the antenna according to the target reflected power;

The second determination module is configured to determine whether the power adjustment condition is met according to the target SAR value, and if the power adjustment condition is met, adjust the transmit power of the antenna.

In a third aspect, a terminal is provided, the terminal includes a transceiver, a two-way coupler and an antenna, the two-way coupler is arranged between the transceiver and the antenna; the two-way coupler is used to detect the current state of the antenna. the target reflected power, and send the target reflected power to the transceiver; the transceiver is used to determine the current target SAR value of the antenna according to the target reflected power, and determine whether the power adjustment is satisfied according to the target SAR value If the power adjustment condition is satisfied, the transmission power of the antenna is adjusted.

In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, implements the method described in the first aspect above.

In a fifth aspect, a computer program product is provided, including a computer program, which implements the method described in the first aspect above when the computer program is executed by a processor.

The beneficial effects brought by the technical solutions provided in the embodiments of the present application include at least:

Obtain the current target reflected power of the antenna in the terminal, and accurately determine the current target SAR value of the antenna through the target reflected power; then determine whether the power adjustment condition is met according to the target SAR value, and if the power adjustment condition is met The next step is to adjust the transmit power of the antenna. Since the reflected power of the antenna is directly related to the SAR value, the current target SAR value of the antenna can be accurately determined by the current target reflected power of the antenna. Therefore, the adjustment of the transmission power is made more accurate, the accuracy of the adjustment of the transmission power of the antenna is greatly improved, and the excessive adjustment of the transmission power and the influence of the communication quality are avoided. While ensuring the communication quality of the terminal, it also ensures that the SAR value of the antenna complies with the regulations.

Description of drawings

1 is a schematic flowchart of a power adjustment method in one embodiment;

Fig. 2 is a schematic flowchart of constructing a mapping relationship table in one embodiment;

3 is a schematic diagram of a comparison of measurement parameters in one embodiment;

4 is a schematic flowchart of judging whether the target SAR value satisfies the power adjustment condition in one embodiment;

5 is a schematic flowchart of a method for adjusting transmit power in an embodiment;

6 is a schematic diagram of a SAR value test result in one embodiment;

7 is a structural block diagram of a power adjustment apparatus in an embodiment;

8 is a schematic diagram of the internal structure of a terminal in one embodiment;

Figure 9 is a diagram of the internal structure of a computer device in one embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

The SAR (Specific Absorption Rate) value represents the allowable amount of radiation absorbed per unit kilogram of organisms (including the human body), and is defined as the electromagnetic power absorbed or consumed by a unit mass of biological tissue, in units of W/kg. The SAR value represents the impact of radiation on the human body and is the most direct test value. The SAR value has data for the whole body, local parts or limbs. Among them, the lower the SAR value, the less radiation is absorbed by the organism. At present, the two international standard SAR values are 1.6W/Kg of the FCC (Federal Communications Commission, US Federal Communications Commission) and 2.0W/Kg of the European Union. The test of SAR value is to test the wireless electromagnetic wave energy generated by the terminal's antenna through the test equipment to measure how much electromagnetic wave radiation is absorbed by the organism. The SAR value is strongly related to parameters such as the transmit power of the antenna in the terminal, the efficiency of the antenna, and the pattern of the antenna, and is proportional to the transmit power. The means is to reduce the transmit power. However, the related art cannot accurately adjust the transmit power of the antenna.

In this application, considering that the SAR value is directly related to the reflected power, the SAR value obtained according to the reflected power is highly consistent with the real situation. By obtaining the reflected power and determining the SAR value, and then judging whether the antenna transmit power needs to be adjusted according to the SAR value, the accuracy of the antenna transmit power adjustment is ensured, and the communication quality of the terminal is avoided due to excessive transmit power adjustment.

In view of this, an embodiment of the present application provides a power adjustment method to solve the above problem that the transmit power of an antenna in a terminal cannot be adjusted accurately.

It should be noted that, in the power adjustment method provided by the embodiments of the present application, the execution body may be a power adjustment apparatus, and the power adjustment apparatus may be implemented as part or all of the terminal through software, hardware, or a combination of software and hardware.

In the following method embodiments, the execution subject is a terminal as an example for description, wherein the terminal can be a smart phone, a notebook computer, a tablet computer, a smart watch, a smart bracelet, a smart speaker, a smart TV, a smart air conditioner, a smart Electronic equipment such as in-vehicle equipment, the type of terminal is not specifically limited here.

In one embodiment, as shown in FIG. 1 , a power adjustment method is provided. The method is applied to a terminal as an example for description. The method includes the following steps:

Step 101: Obtain the current target reflected power of the antenna in the terminal.

The terminal is provided with an antenna, and signals are sent through the antenna. In the process of terminal communication, it is necessary to monitor whether the SRA value of the antenna meets the regulations in real time, and adjust the SAR value in time to avoid harm to human health. The SAR value of an antenna is related to the reflected power of the antenna. Therefore, in order to determine the SAR value of the antenna at the current moment, it is necessary to obtain the reflected power of the antenna at the current moment, where the reflected power of the antenna at the current moment is the target reflected power.

Step 102: Determine the current target SAR value of the antenna according to the target reflected power.

Among them, since the reflected power of the antenna is related to the SAR value of the antenna, for a certain reflected power, the SAR value of the antenna is also determined. Therefore, after obtaining the target reflected power of the antenna in the terminal at the current moment, the reflected power can be accurately measured according to the reflected power. to determine the SAR value of the antenna at the current moment, and the SAR value of the antenna at the current moment is the target SAR value. By determining the target SAR value, it is judged whether the SAR value of the antenna in the terminal complies with the regulations, so that the reflected power can be adjusted in time when it exceeds the regulations to make it meet the regulations and avoid harm to the human body. Among them, this regulation refers to the SAR value specification stipulated by the state. For example, the average SAR value of the antenna within 100 seconds stipulated by the FCC should not exceed 1.6W/Kg.

Step 103: Determine whether the power adjustment condition is met according to the target SAR value, and if the power adjustment condition is met, adjust the transmit power of the antenna.

Among them, the transmit power of the antenna in the terminal is proportional to the reflected power. When the transmit power increases, the reflected power also increases accordingly; when the transmit power decreases, the reflected power also decreases accordingly. The SAR value is related to the reflected power, and the adjustment of the reflected power can be realized by adjusting the transmit power.

A power adjustment condition is preset in the terminal. After obtaining the target SAR value of the antenna at the current moment, the terminal can judge whether the target SAR value satisfies the power adjustment condition, and does not adjust the transmit power of the antenna if the power adjustment condition is not met. , and adjust the transmit power of the antenna in the terminal when the power adjustment condition is met.

Among them, on the one hand, the SAR value of the antenna in the terminal needs to meet the regulations. Generally, in order to ensure the communication quality of the terminal, the transmit power of the antenna is high, so the SAR value will also be high. In order to comply with the regulations, the transmit power of the antenna should be reduced in time. So that the SAR value is also correspondingly reduced. On the other hand, the transmit power of the antenna is related to the communication quality of the terminal. In the case of low transmit power, the signal-to-noise ratio of the transmitted signal may be affected, resulting in an increase in the bit error rate of the base station demodulating the signal and affecting the communication. quality. Therefore, in the case that the target SAR value satisfies the power adjustment, the adjustment processing of the transmit power of the antenna includes two cases of increasing the transmit power and reducing the transmit power, so that the antenna can be adjusted in time under the condition of ensuring the communication quality of the terminal. transmit power to bring the SAR value into compliance with regulations.

The above power adjustment method obtains the current target reflected power of the antenna in the terminal, and accurately determines the current target SAR value of the antenna through the target reflected power; and then determines whether the power adjustment condition is satisfied according to the target SAR value, and when the target SAR value is satisfied. In the case of power adjustment conditions, the transmission power of the antenna is adjusted. Since the reflected power of the antenna is related to the SAR value of the antenna, the current target SAR value of the antenna can be accurately determined by the current target reflected power of the antenna. Further, it is directly judged whether the transmit power needs to be adjusted according to the target SRA value. , thereby making the adjustment of the transmission power more accurate, greatly improving the accuracy of the adjustment of the transmission power of the antenna, and ensuring that the SAR value of the antenna meets the regulations and also ensures the communication quality of the terminal.

In one embodiment, the acquiring the current target reflected power of the antenna in the terminal includes: receiving the target reflected power detected by a two-way coupler; wherein the two-way coupler is disposed between the antenna and the transceiver for detecting the The reflected power of the antenna.

Wherein, an antenna is provided in the terminal, and a bidirectional coupler and a transceiver are also provided, and the bidirectional coupler is located between the transceiver and the antenna.

The built-in switch in the bidirectional coupler switches the forward and reverse coupling paths, which can detect the transmitted power in the forward direction and the reflected power in the reverse direction. The terminal outputs the signal to be transmitted to the free space through the transceiver to the bidirectional coupler, and sends the signal to the antenna through the bidirectional coupler, and then transmits the signal to the free space through the antenna. In order to detect the SAR value of the antenna when it is working in real time, after sending the signal, it is necessary to obtain the target reflected power of the antenna, and accurately determine the current target SAR value through the target reflected power. Therefore, the reflected power after the antenna transmits the signal can be directly detected by the bidirectional coupler.

In the embodiment of the present application, the terminal can accurately detect the reflected power of the antenna through the bidirectional coupler, wherein, since the reflected power is affected by the external environment, when the human body is close to the antenna, the performance parameters of the antenna itself will be affected, thereby affecting the reflected power of the antenna. . Therefore, obtaining the reflected power and determining the SAR value of the antenna through the reflected power is closer to the actual situation of the user using the terminal, which further makes the adjustment of the transmit power more accurate.

In one embodiment, determining the current target SAR value of the antenna according to the target reflected power includes: querying a preset mapping table according to the target reflected power to obtain the target SAR value corresponding to the target reflected power; wherein, The mapping relationship table stores multiple sets of mapping relationships between the reflected power and the SAR value.

A mapping relationship table may be preset in the terminal, and the mapping relationship table stores the mapping relationship between the reflected power of the antennas in the multiple groups of terminals and the SAR value, that is, each reflected power in the mapping relationship table corresponds to a SAR value. After the target reflected power is obtained, the SAR value corresponding to the same reflected power as the target reflected power can be searched in the mapping table, and the found SAR value can be used as the target SAR value, so that the target SAR value can be further judged Whether the power adjustment conditions are met.

Please refer to FIG. 2 , which shows a schematic flowchart of constructing a mapping relationship table provided by an embodiment of the present application. The construction process of the mapping relationship table includes:

In step 201, the reflected power and SAR value of the antenna are acquired under different holding states of the terminal by the user.

Among them, when the user uses the terminal, when the human body is close to the antenna in the terminal, the performance of the antenna itself will be affected, for example, parameters such as the radiation efficiency or impedance of the antenna will be affected, and these parameters are related to the reflected power of the antenna. Therefore, the reflected power of the antenna will be affected at the same time, and the SAR value will also change. Therefore, in order to ensure that the mapping relationship between the reflected power and the SAR value contained in the mapping relationship table is sufficiently detailed, so that the target SAR value obtained by querying the mapping relationship table according to the target reflected power is accurate enough, when constructing the mapping relationship table, also The influence of the external environment on the antenna in the terminal should be fully considered, and the external environment refers to different states of the user holding the terminal. Combine different holding states to build a more detailed and accurate mapping table.

Specifically, different holding states of the user on the terminal are simulated, for example, the user holds the terminal with the left hand, the terminal with the right hand, the terminal with both hands, the position of holding the terminal is close to the antenna, or the holding position is far away from the antenna. In different states, the reflected power of the antenna after the signal is transmitted in the terminal is obtained, and the SAR value of the antenna in this state is measured by using the SAR value measurement system to obtain the reflected power and SAR value of the antenna under different holding states of the terminal by the user, and The reflected power obtained in different states corresponds to the measured SAR value one-to-one. As shown in FIG. 3 , it shows a schematic diagram of a measurement parameter comparison provided by an embodiment of the present application. In different holding states, the reflected power of the antenna and the SAR value of the measurement antenna are obtained and recorded.

Step 202: Build the mapping table according to the acquired reflected power and the SAR value.

Among them, according to the acquired one-to-one correspondence between the reflected power of the antennas in the multiple groups of terminals and the SAR value, the reflected power and the SAR value of each group are stored to form the mapping relationship table. In the mapping relationship table, each reflected power The map has a SAR value. Since the reflected power in the mapping table corresponds to different holding states, after the target reflected power is obtained, the same reflected power can be found from the mapping table, and the reflected power will be mapped with the reflected power. The SAR value of the relationship is used as the target SAR value, so that the target SAR value can be accurately determined, which provides a basis for the subsequent adjustment of the transmit power of the antenna.

In the embodiment of the present application, considering the different states of the user holding the terminal, the influence of the external environment on the antenna in the terminal is fully considered, and the reflected power and SAR values of the antennas in the multiple groups of terminals are obtained by simulating different states of the user holding the terminal Through the mapping relationship table, the target SAR value corresponding to the reflected power of the target can be accurately determined, the efficiency and accuracy of determining the SAR value can be improved, and the transmission power of the antenna in the terminal can be improved. The accuracy of the adjustment ensures the normal communication of the terminal and the compliance of the SAR value.

In one embodiment, as shown in FIG. 4 , it shows a schematic flowchart of determining whether a target SAR value satisfies a power adjustment condition provided by an embodiment of the present application. After the target SAR value is determined according to the target reflected power, it is necessary to judge whether the target SAR value satisfies the power adjustment condition, and further determine whether the transmit power of the antenna needs to be adjusted. Among them, judging whether the target SAR value meets the power adjustment conditions includes:

Step 401 , according to the target SAR value and a plurality of historical SAR values of the antenna, determine the average SAR value of the antenna within a target time window, where the target time window includes the current moment.

Among them, in the process of the user using the terminal to communicate, the antenna in the terminal can detect the reflected power every time a signal is transmitted, and the reflected power can be detected at different times of transmitting signals, and the mapping table is queried according to the reflected power. Get the corresponding SAR value. Among them, the target SAR value is the SAR value of the antenna at the current moment, and the historical SAR value is the SAR value of the antenna obtained before the current moment.

According to the specification of SAR value, in the process of terminal communication, for the human body, the accumulated radiation energy in the head or body shall not exceed the specified value. Among them, the radiated energy is calculated by integrating the transmit power of the antenna within a certain time window. Regulatory agencies in different countries and regions have slightly different standard requirements for SAR values. Taking the FCC as an example, for radio frequency signals below 3GHz, it is required that the average SAR value of terminals within a time window of 100 seconds should not exceed the upper limit of 1.6W/Kg Require. However, the real-time SAR value can exceed 1.6W/Kg, and it is only necessary to ensure that the average SAR value within the time window required by regulations (for example, 100 seconds of FCC) is controlled within the range required by regulations. For RF signals above 3GHz, the average SAR value within a 60-second time period must not exceed the upper limit of 1.6W/Kg. Similarly, the real-time SAR value can exceed 1.6W/Kg, and it is only necessary to ensure that the average SAR value of the terminal within the time window required by regulations is controlled within the range required by regulations.

SAR regulatory agencies in different countries and regions have different standards for SAR values, and take the fixed time period specified in the SAR value regulations of the region where the terminal is located as the target time window. The target time window contains the current moment. At the current moment, the target SAR value corresponding to the current moment can be obtained, and the historical SAR value is a plurality of SAR values obtained before the current moment and within the target time window. Calculate the average of multiple historical SAR values and target SAR values to obtain the average SAR value of the target time window. The transmit power needs to be adjusted to avoid that the average SAR value of the terminal in the target time window exceeds the fixed SAR value of the regulation. Obviously, in the continuous communication process of the terminal, with the passage of time, the target SAR value at the current moment is constantly updated, and the historical SAR value within the target time window is also constantly updated. For example, when the target time window is 60 seconds, The average SAR value is obtained by averaging multiple SAR values newly acquired within 60 seconds and the SAR value at the current moment.

Step 402: Determine whether the power adjustment condition is satisfied according to the average SAR value.

Among them, on the one hand, when the average SAR value of the target time window is determined, by comparing the average SAR value with the fixed SAR value of the regulations, according to the comparison result, it is determined whether the transmit power of the antenna needs to be reduced, so that the reflected power changes, The corresponding SAR value will also be reduced to avoid exceeding the fixed SAR value of the regulations.

On the other hand, in order to meet the fixed SAR value of the regulations, in the process of reducing the transmit power, if the transmit power is too low, it will affect the communication quality between the terminal and the base station. Therefore, it is necessary to judge whether it is necessary to increase the transmit power according to the comparison result.

In one embodiment, if the average SAR value satisfies the power adjustment condition, adjusting the transmit power of the antenna includes: if the difference between the average SAR value and the upper bound SAR value is less than a preset difference threshold, then adjusting the transmit power of the antenna. The transmit power of the antenna is reduced; if the average SAR value is less than the lower bound SAR value, and the target reflected power is less than the lower bound reflected power, the transmit power of the antenna is increased.

The upper bound SAR value and the difference threshold are pre-stored in the terminal, and the upper bound SAR value is the same as the fixed SAR value in the SAR regulations of the region where the terminal is located. Compare the obtained average SAR value of the target time window with the upper bound SAR value, and compare the obtained difference with the difference threshold. If the difference is less than the difference threshold, it means that the average SAR value is close to the fixed SAR value. , it is necessary to reduce the transmit power in time, so that the average SAR value of the next target time window does not exceed the fixed SAR value, which is in compliance with regulations. Therefore, when the difference is smaller than the difference threshold, the terminal performs reduction processing on the transmit power of the antenna. Optionally, the difference threshold may be determined by staff according to experience or multiple experiments, and the method for determining the difference threshold is not specifically limited in this embodiment of the present application.

In addition, the lower bound SAR value and the lower bound reflected power are also pre-stored in the terminal, which are mainly used to judge whether the transmit power of the antenna needs to be increased to ensure the communication quality. Specifically, comparing the average SAR value with the lower bound SAR value, if the average SAR value is smaller than the lower bound SAR value, it means that the current average SAR value is far from the fixed SAR value of the regulations, and there is a large room for increasing the transmit power. At the same time, compare the reflected power of the target at the current moment with the reflected power of the lower bound. If the reflected power of the target is also smaller than the reflected power of the lower bound, and the reflected power is proportional to the transmitting power, it means that the transmitting power at the current moment is small, which may affect the communication command of the terminal. , the transmit power of the antenna should be increased. Therefore, when the average SAR value is less than the lower bound SAR value and the target reflected power is also less than the lower bound reflected power, the transmit power of the antenna should be increased to ensure communication quality.

In the embodiment of the present application, by adjusting the transmit power of the antenna, the transmit power is increased or decreased in a timely manner, and the flexibility of the transmit power adjustment is improved, which not only ensures the communication quality of the terminal, but also ensures that the SAR value of the terminal complies with regulations .

In one embodiment, adjusting the transmit power of the antenna includes:

Adjust the power of the signal output by the transceiver; or, control the tuner to adjust the impedance of the antenna, and the tuner is arranged between the antenna and the transceiver.

Among them, on the one hand, for the adjustment processing of the transmission power of the antenna, the power of the signal output by the transceiver in the terminal can be adjusted, so that the transmission power of the signal transmitted by the antenna is also changed correspondingly, so as to achieve the adjustment of the transmission power of the antenna. Purpose. Specifically, if the transmit power of the antenna needs to be increased, the terminal increases the conduction power of the signal output from the transceiver, so that the antenna increases the transmit power of the signal; if the transmit power of the antenna needs to be reduced, the terminal By reducing the conducted power of the signal output in the transceiver, the antenna reduces the transmit power to transmit the signal.

On the other hand, a tuner can also be provided in the terminal, and the tuner is located between the antenna and the transceiver, the tuner is connected to the antenna, and the switch of the tuner is connected to different ground points, so that different antenna efficiencies can be achieved , specifically, the impedance of the antenna can be changed, thereby changing the transmit power of the antenna. Therefore, if the transmit power of the antenna needs to be adjusted, the terminal adjusts the impedance of the antenna by controlling the tuner, so that the transmit power of the antenna also changes accordingly. Of course, there are various methods for adjusting the transmit power of the antenna in the terminal, and the above two methods are used as examples in the embodiments of the present application, but are not limited to the above two methods.

In the embodiment of the present application, by adjusting the power of the signal output by the transceiver or adjusting the impedance of the antenna by controlling the tuner, etc., the transmit power of the antenna can be flexibly and accurately adjusted, which can easily improve the Accuracy of transmit power adjustment.

In an embodiment, as shown in FIG. 5 , it shows a schematic flowchart of a transmit power adjustment method provided by an embodiment of the present application. The transmit power adjustment method includes:

Step 501: Receive the target reflected power detected by the bidirectional coupler.

Wherein, the bidirectional coupler is arranged between the antenna and the transceiver to detect the reflected power of the antenna.

Step 502: Query a preset mapping table according to the target reflected power to obtain a target SAR value corresponding to the target reflected power.

The mapping relationship table stores multiple sets of mapping relationships between the reflected power and the SAR value.

The construction process of the mapping relation table includes: obtaining the reflected power and SAR value of the antenna under different holding states of the terminal by the user; and constructing the mapping relation table according to the acquired reflected power and SAR value.

Step 503: Determine the average SAR value of the antenna within the target time window according to the target SAR value and multiple historical SAR values of the antenna, where the target time window includes the current moment.

Step 504: Determine whether the power adjustment condition is satisfied according to the average SAR value.

Step 505, if the power adjustment condition is satisfied, adjust the transmit power of the antenna.

Wherein, if the difference between the average SAR value and the upper bound SAR value is smaller than the preset difference threshold, the transmit power of the antenna is reduced. If the average SAR value is less than the lower bound SAR value, and the target reflected power is less than the lower bound reflected power, the transmit power of the antenna is increased.

Wherein, the power of the signal output by the transceiver can be adjusted; or, the tuner can be controlled to adjust the impedance of the antenna, so as to realize the adjustment of the transmit power of the antenna. The tuner is arranged between the antenna and the transceiver.

In the embodiment of the present application, when the human body is close to the antenna of the mobile phone, the performance of the antenna itself, including radiation efficiency, impedance, etc., will be affected, thereby affecting the reflected power of the antenna, and the reflected power is related to the SAR value. Therefore, the reflected power of the monitoring antenna is closer to the actual user's use, and the influence of the external environment change on the SAR value of the terminal can be fully considered. In addition, the two-way coupler detects the reflected signal of the antenna, calculates the average SAR value within the target time window in real time, and accurately adjusts the transmit power of the antenna in real time to achieve the required reflected power and then the required SAR value, ensuring that The SAR value of the antenna in the terminal within the fixed time period required by the regulations meets the regulatory requirements or meets the design target value of the SAR value. As shown in FIG. 6 , it shows a schematic diagram of a SAR value test result provided by an embodiment of the present application, where SARLimit is a fixed SAR value stipulated by regulations. It can be seen that this method can ensure communication quality while ensuring communication quality. Average SAR values comply with regulations.

It should be understood that, although the steps in the flowcharts involved in the above embodiments are sequentially displayed according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order, and these steps may be performed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but may be executed at different times The execution order of these steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in the other steps.

Based on the same inventive concept, an embodiment of the present application also provides a power adjustment device for implementing the above-mentioned power adjustment method. The implementation solution for solving the problem provided by the device is similar to the implementation solution described in the above method, so the specific limitations in one or more power adjustment device embodiments provided below can refer to the above limitations on the power adjustment method, It is not repeated here.

In one embodiment, as shown in FIG. 7 , a power adjustment apparatus is provided. The power adjustment apparatus 700 includes: an acquisition module 701, a first determination module 702 and a second determination module 703, wherein:

An acquisition module 701, configured to acquire the current target reflected power of the antenna in the terminal;

a first determining module 702, configured to determine the current target SAR value of the antenna according to the target reflected power;

The second determination module 703 is configured to determine whether the power adjustment condition is met according to the target SAR value, and if the power adjustment condition is met, adjust the transmit power of the antenna.

In one embodiment, the acquisition module 701 is specifically configured to: receive the reflected power of the target detected by a two-way coupler; wherein the two-way coupler is arranged between the antenna and the transceiver, and is used to detect the reflection of the antenna power.

In one embodiment, the first determining module 702 is specifically configured to: query a preset mapping table according to the target reflected power to obtain the target SAR value corresponding to the target reflected power; wherein, in the mapping table Multiple sets of mapping relationships between reflected power and SAR values are stored.

In one embodiment, the process of constructing the mapping relationship table includes: acquiring the reflected power and SAR value of the antenna under different holding states of the terminal by the user; constructing the mapping relationship according to the acquired reflected power and SAR value surface.

In one embodiment, the power adjustment device 700 further includes:

a third determining module, configured to determine the average SAR value of the antenna in the target time window according to the target SAR value and a plurality of historical SAR values of the antenna, and the target time window includes the current moment;

The fourth determination module is configured to determine whether the power adjustment condition is satisfied according to the average SAR value.

In one embodiment, the second determination module 703 is specifically configured to: if the difference between the average SAR value and the upper bound SAR value is less than a preset difference threshold, reduce the transmit power of the antenna; if The average SAR value is less than the lower bound SAR value, and the target reflected power is less than the lower bound reflected power, then the transmit power of the antenna is increased.

In one embodiment, the second determining module 703 is specifically configured to: perform adjustment processing on the power of the signal output by the transceiver; or, control a tuner to perform adjustment processing on the impedance of the antenna, and the tuner is set in the between the antenna and the transceiver.

Each module in the above-mentioned power adjustment device can be implemented in whole or in part by software, hardware and combinations thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a terminal is provided, the terminal includes a transceiver, a two-way coupler and an antenna, the two-way coupler is arranged between the transceiver and the antenna;

The bidirectional coupler is used to detect the current target reflected power of the antenna, and send the target reflected power to the transceiver;

The transceiver is used to determine the current target SAR value of the antenna according to the target reflected power, and determine whether the power adjustment condition is met according to the target SAR value, and if the power adjustment condition is met, adjust the transmit power of the antenna deal with.

In one embodiment, the transceiver is specifically configured to query a preset mapping table according to the target reflected power to obtain the target SAR value corresponding to the target reflected power; wherein the mapping table stores reflections Multiple sets of mapping relationships between power and SAR values.

In one embodiment, the process of constructing the mapping relation table includes: in different holding states of the terminal by the user, acquiring the reflected power and SAR value of the antenna; constructing the mapping relation table according to the acquired reflected power and SAR value .

In one embodiment, the transceiver is specifically configured to determine the average SAR value of the antenna in the target time window according to the target SAR value and a plurality of historical SAR values of the antenna, and the target time window includes the current moment; according to The average SAR value determines whether the power adjustment condition is met.

In one embodiment, the transceiver is specifically configured to perform adjustment processing on the power of the signal output by the transceiver, so as to realize the adjustment of the transmit power of the antenna.

In one embodiment, the terminal further includes a tuner, and the tuner is arranged between the transceiver and the antenna; the transceiver is specifically configured to control the tuner to perform adjustment processing on the impedance of the antenna to Realize the adjustment of the transmit power of the antenna.

As shown in FIG. 8 , which shows a schematic diagram of the internal structure of a terminal provided by an embodiment of the present application, the terminal includes a transceiver 801 , a power amplifier 802 , a bidirectional coupler 803 , an antenna 804 , and a low-noise amplifier 805 . The terminal receives the signal through the antenna, and sends the received signal to the transceiver for demodulation processing after passing through the low noise amplifier. The terminal uses the transceiver to amplify the signal to be sent by the power amplifier and then sends it to the two-way coupler, and then sends it to the antenna through the two-way coupler, and transmits through the antenna. At the same time, the two-way coupler also detects the reflected power of the antenna and directly transmits it. It is sent to the transceiver, so that the transceiver can determine the SAR value at the current moment according to the reflected power.

For specific limitations and beneficial effects of the terminal, reference may be made to the above description of the limitations on the power adjustment method and the beneficial effects, which will not be repeated here.

In one embodiment, a computer device is provided, and the computer device may be a terminal, and its internal structure diagram may be as shown in FIG. 9 . The computer equipment includes a processor, memory, a communication interface, a display screen, and an input device connected by a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium, an internal memory. The nonvolatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the execution of the operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for wired or wireless communication with an external terminal, and the wireless communication can be realized by WIFI, mobile cellular network, NFC (Near Field Communication) or other technologies. The computer program, when executed by a processor, implements a power adjustment method. The display screen of the computer equipment may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment may be a touch layer covered on the display screen, or a button, a trackball or a touchpad set on the shell of the computer equipment , or an external keyboard, trackpad, or mouse.

Those skilled in the art can understand that the structure shown in FIG. 9 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.

In one embodiment, a computer-readable storage medium is provided on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

Obtain the current target reflected power of the antenna in the terminal; determine the current target SAR value of the antenna according to the target reflected power; determine whether the power adjustment condition is met according to the target SAR value, and if the power adjustment condition is met, the transmit power of the antenna Make adjustments.

In one embodiment, the computer program further implements the following steps when executed by the processor: receiving the reflected power of the target detected by a bidirectional coupler; wherein the bidirectional coupler is arranged between the antenna and the transceiver for detecting the The reflected power of the antenna.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: query a preset mapping table according to the target reflected power to obtain the target SAR value corresponding to the target reflected power; wherein, the mapping table Multiple sets of mapping relationships between reflected power and SAR values are stored in the .

In one embodiment, the computer program further implements the following steps when executed by the processor: determining the average SAR value of the antenna within the target time window according to the target SAR value and a plurality of historical SAR values of the antenna, the target time window including The current moment; according to the average SAR value, determine whether the power adjustment condition is met.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: if the difference between the average SAR value and the upper bound SAR value is less than a preset difference threshold, reducing the transmit power of the antenna; If the average SAR value is less than the lower bound SAR value, and the target reflected power is less than the lower bound reflected power, the transmit power of the antenna is increased.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: adjusting the power of the signal output by the transceiver; or, controlling the tuner to adjust the impedance of the antenna, and the tuner is set in between the antenna and the transceiver.

In one embodiment, a computer program product is provided, comprising a computer program that, when executed by a processor, implements the following steps:

Obtain the current target reflected power of the antenna in the terminal; determine the current target SAR value of the antenna according to the target reflected power; determine whether the power adjustment condition is met according to the target SAR value, and if the power adjustment condition is met, the transmit power of the antenna Make adjustments.

In one embodiment, the computer program further implements the following steps when executed by the processor: receiving the reflected power of the target detected by a bidirectional coupler; wherein the bidirectional coupler is arranged between the antenna and the transceiver for detecting the The reflected power of the antenna.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: query a preset mapping table according to the target reflected power to obtain the target SAR value corresponding to the target reflected power; wherein, the mapping table Multiple sets of mapping relationships between reflected power and SAR values are stored in the .

In one embodiment, the computer program further implements the following steps when executed by the processor: determining the average SAR value of the antenna within the target time window according to the target SAR value and a plurality of historical SAR values of the antenna, the target time window including The current moment; according to the average SAR value, determine whether the power adjustment condition is met.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: if the difference between the average SAR value and the upper bound SAR value is less than a preset difference threshold, reducing the transmit power of the antenna; If the average SAR value is less than the lower bound SAR value, and the target reflected power is less than the lower bound reflected power, the transmit power of the antenna is increased.

In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: adjusting the power of the signal output by the transceiver; or, controlling the tuner to adjust the impedance of the antenna, the tuner being set in between the antenna and the transceiver.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage In the medium, when the computer program is executed, it may include the processes of the above-mentioned method embodiments. Wherein, any reference to a memory, a database or other media used in the various embodiments provided in this application may include at least one of a non-volatile memory and a volatile memory. Non-volatile memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetic variable memory (Magnetoresistive Random Memory) Access Memory, MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (Phase Change Memory, PCM), graphene memory, etc. Volatile memory may include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration and not limitation, the RAM may be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM). The database involved in the various embodiments provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include a blockchain-based distributed database, etc., but is not limited thereto. The processors involved in the various embodiments provided in this application may be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, data processing logic devices based on quantum computing, etc., and are not limited to this.

The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, all It is considered to be the range described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the present application should be determined by the appended claims.

Claims (13)

1. A power adjustment method, wherein the method comprises: Obtain the current target reflected power of the antenna in the terminal; Determine the current target SAR value of the antenna according to the target reflected power; Whether the power adjustment condition is satisfied is determined according to the target SAR value, and if the power adjustment condition is satisfied, the transmission power of the antenna is adjusted. 2. The method according to claim 1, wherein the acquiring the current target reflected power of the antenna in the terminal comprises: receiving the reflected power of the target detected by the bidirectional coupler; Wherein, the bidirectional coupler is arranged between the antenna and the transceiver, and is used to detect the reflected power of the antenna. 3. The method according to claim 1, wherein the determining the current target SAR value of the antenna according to the target reflected power comprises: Query a preset mapping table according to the target reflected power to obtain the target SAR value corresponding to the target reflected power; Wherein, the mapping relationship table stores multiple sets of mapping relationships between reflected power and SAR value. 4. method according to claim 3, is characterized in that, the construction process of described mapping relation table comprises: Obtain the reflected power and SAR value of the antenna under different holding states of the terminal by the user; The mapping table is constructed according to the acquired reflected power and SAR value. 5. The method according to claim 1, wherein the method further comprises: According to the target SAR value and a plurality of historical SAR values of the antenna, determine the average SAR value of the antenna in the target time window, where the target time window includes the current moment; Whether the power adjustment condition is satisfied is determined according to the average SAR value. 6. The method according to claim 5, wherein, if the power adjustment condition is satisfied, adjusting the transmit power of the antenna, comprising: If the difference between the average SAR value and the upper bound SAR value is less than a preset difference threshold, reducing the transmit power of the antenna; If the average SAR value is less than the lower bound SAR value, and the target reflected power is less than the lower bound reflected power, the transmit power of the antenna is increased. 7. The method according to any one of claims 1 to 6, wherein the adjusting the transmit power of the antenna comprises: Adjust the power of the signal output by the transceiver; or, A tuner is controlled to adjust the impedance of the antenna, and the tuner is arranged between the antenna and the transceiver. 8. A power adjustment device, characterized in that the device comprises: an acquisition module, used to acquire the current target reflected power of the antenna in the terminal; a first determining module, configured to determine the current target SAR value of the antenna according to the target reflected power; The second determination module is configured to determine whether the power adjustment condition is met according to the target SAR value, and if the power adjustment condition is met, adjust the transmit power of the antenna. 9. A terminal, characterized in that the terminal comprises a transceiver, a bidirectional coupler and an antenna, and the bidirectional coupler is arranged between the transceiver and the antenna; The bidirectional coupler is used to detect the current reflected power of the target of the antenna, and send the reflected power of the target to the transceiver; The transceiver is configured to determine the current target SAR value of the antenna according to the target reflected power, and determine whether the power adjustment condition is satisfied according to the target SAR value. The transmit power of the antenna is adjusted. 10. The terminal according to claim 9, wherein the terminal further comprises a tuner, and the tuner is arranged between the transceiver and the antenna; The transceiver is specifically configured to control the tuner to perform adjustment processing on the impedance of the antenna, so as to realize the adjustment of the transmit power of the antenna. 11 . The terminal according to claim 9 , wherein the transceiver is specifically configured to perform adjustment processing on the power of a signal output by the transceiver, so as to adjust the transmit power of the antenna. 12 . . 12. A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented. 13. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the method of any one of claims 1 to 7.

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