SAR (Synthetic Aperture Radar) reduction method and device of terminal equipment, electronic equipment and storage medium

Abstract

The embodiment of the invention discloses an SAR reduction method and device of terminal equipment, electronic equipment and a computer readable storage medium, and relates to the technical field of communication, and the method comprises the steps: monitoring a target event satisfied by a current wireless network Wifi usage scene, so as to obtain a monitoring result; based on the monitoring result, judging an electromagnetic wave specific absorption ratio (SAR) scene corresponding to the current WiFi use scene; and adjusting a power parameter corresponding to the terminal device based on the SAR reduction scene. Therefore, by monitoring the target event of the Wi-Fi use scene of the wireless network, judging the SAR reduction scene and adjusting the power parameter, the SAR value of the terminal equipment can be ensured to be always in a safe range in various use scenes, potential hazards possibly generated by electromagnetic radiation to a human body are reduced, and a user can use the equipment at ease. The Wi-Fi network performance can be optimized by reasonably adjusting the power parameters in different scenes.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the field of computer technologies, and particularly to a method, apparatus, electronic device, and computer-readable storage medium for reducing SAR of a terminal device. Background Art

[0002] As a wireless communication device, the electromagnetic wave signal emitted by a mobile phone can cause electromagnetic radiation damage to the human body. Countries around the world have stipulated radiation safety values for devices such as mobile phones, and only mobile phones that pass certification tests and comply with regulations can be sold publicly. The electromagnetic radiation of a mobile phone is measured by SAR (Specific Absorption Rate), and when the antenna is determined, it is positively correlated with the transmission power. The higher the transmission power, the stronger the electromagnetic radiation and the higher the SAR value. In SAR detection and certification, if the SAR value exceeds the standard, the transmission power needs to be reduced, but this will cause the mobile phone signal to weaken. Therefore, the SAR and signal strength of mobile phones are pain points in the industry. Nowadays, 5G mobile phones have a variety of Wi-Fi functions and 16 usage scenarios, all of which require SAR detection and certification. However, the mobile phone platform can only set 6 types of SAR reduction scenarios.

[0003] The current simple approach of mobile phone manufacturers is that after Wi-Fi SAR certification is completed, the lowest transmission power value among the 16 usage scenarios is taken as the unified transmission power. Although it can ensure that Wi-Fi SAR complies with regulations, it sacrifices the transmission power of most scenarios. Summary of the Invention

[0004] Embodiments of the present disclosure provide a method, apparatus, electronic device, and computer-readable storage medium for reducing SAR of a terminal device, aiming to at least solve one of the technical problems in the related art to a certain extent.

[0005] In a first aspect, embodiments of the present disclosure provide a method for reducing SAR of a terminal device, the method including:

[0006] Monitoring a target event satisfied by the current wireless network Wi-Fi usage scenario to obtain a monitoring result;

[0007] Based on the monitoring result, determining the SAR reduction scenario corresponding to the current Wi-Fi usage scenario;

[0008] Based on the SAR reduction scenario, adjusting the power parameter corresponding to the terminal device.

[0009] In a second aspect, embodiments of the present disclosure further provide a device for reducing SAR of a terminal device, the device including:

[0010] A monitoring module, configured to monitor a target event satisfied by the current wireless network Wi-Fi usage scenario to obtain a monitoring result;

[0011] A judgment module, configured to judge a specific absorption ratio (SAR) scenario for reducing electromagnetic waves corresponding to the current Wi-Fi usage scenario based on the monitoring result.

[0012] An adjustment module, configured to adjust the power parameter corresponding to the terminal device based on the SAR reduction scenario.

[0013] In a third aspect, an embodiment of the present disclosure further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps in the method for reducing SAR of the above-mentioned terminal device are implemented.

[0014] In a fourth aspect, an embodiment of the present disclosure further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the method for reducing SAR of the above-mentioned terminal device are implemented.

[0015] In a fifth aspect, an embodiment of the present disclosure further provides a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the methods provided in various alternative implementations of the embodiments of the present disclosure.

[0016] In the embodiments of the present disclosure, first, a target event satisfied by the current wireless network Wi-Fi usage scenario is monitored to obtain a monitoring result. Then, based on the monitoring result, a specific absorption ratio (SAR) scenario for reducing electromagnetic waves corresponding to the current Wi-Fi usage scenario is judged. After that, based on the SAR reduction scenario, the power parameter corresponding to the terminal device is adjusted. Thus, by monitoring the target event of the wireless network Wi-Fi usage scenario, judging the SAR reduction scenario, and adjusting the power parameter, it can be ensured that the SAR value of the terminal device is always within a safe range in various usage scenarios, reducing the potential harm that electromagnetic radiation may cause to the human body and allowing users to use the device with confidence. Reasonably adjusting the power parameter in different scenarios can optimize the Wi-Fi network performance. For example, when making a call with a dual-band Wi-Fi connection, adjusting the power according to the characteristics of the scenario can better utilize the advantages of the 2.4G and 5G frequency bands, ensure network stability, reduce call stuttering, disconnection, etc., and improve the user's network experience. Precisely adjusting the power according to the actual usage scenario can avoid unnecessary high-power operation and reduce the power consumption of the device. For example, reducing the power in the hotspot-off scenario can reduce power consumption and extend the battery life, facilitating users to continuously use the device when they are out and unable to charge in time.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present disclosure, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0019] Figure 1 is a schematic flowchart of the method for reducing SAR of a terminal device provided in the first embodiment of the present disclosure;

[0020] Figure 2 shows a schematic diagram of the division of a SAR reduction scenario;

[0021] Figure 3 is a schematic diagram of the overall implementation algorithm of a SAR reduction mechanism;

[0022] Figure 4 is a schematic flowchart of the method for reducing SAR of a terminal device provided in the second embodiment of the present disclosure;

[0023] Figure 5 is a schematic flowchart of the method for reducing SAR of a terminal device provided in the third embodiment of the present disclosure;

[0024] Figure 6 is a schematic structural diagram of the device for reducing SAR of a terminal device provided in the embodiments of the present disclosure;

[0025] Figure 7 is a schematic structural diagram of an electronic device provided in the embodiments of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Some embodiments of the present disclosure will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. Various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will become apparent after understanding the present disclosure. For example, the order of operations described herein is merely exemplary and is not limited to the orders set forth herein, but may be changed as will be apparent after understanding the present disclosure, except for operations that must be performed in a specific order. Additionally, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

[0027] The embodiments described in some of the following examples of the present disclosure do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0028] As a wireless communication device, a mobile phone emits electromagnetic wave signals, which can cause electromagnetic radiation damage to the human body. In order to enable people to use mobile phones safely, countries and regions around the world have stipulated safety values for radiation of wireless communication devices such as mobile phones. That is to say, only after the radiation of the mobile phone passes the certification test and complies with the regulations, it is allowed to be publicly sold on the market. The electromagnetic radiation of a mobile phone is measured by SAR (Specific Absorption Rate), and is positively correlated with the transmission power of the mobile phone. That is to say, when the antenna is determined, the higher the transmission power of the mobile phone, the stronger the electromagnetic radiation, that is, the higher the SAR value. During the SAR detection and certification process, when the SAR value of the mobile phone exceeds the standard, the transmission power needs to be reduced, and reducing the transmission power means that the mobile phone signal will be weakened. Taking 5G mobile phones as an example, the functions of Wifi are increasing, that is, there are 16 usage scenarios for Wifi, and SAR detection and certification need to be carried out for all usage scenarios. However, the mobile phone platform usually can only set 6 types of SAR reduction scenarios. Therefore, a reasonable Wifi antenna SAR reduction mechanism is needed to classify 16 Wifi usage scenarios and set different powers. In the related art, an SAR sensor is added at the Wi-Fi antenna to detect whether a human body is approaching. When no human body is detected approaching, the Wi-Fi power for 16 scenarios is set to the maximum, and when a human body is detected approaching, it is set to the minimum. This method has the maximum Wi-Fi transmission power when the human body is far away, but the power is relatively low in scenarios such as Wi-Fi calls, and it also increases the hardware cost.

[0029] It should be noted that the execution subject of the SAR reduction method of the terminal device in this embodiment can be the SAR reduction device of the terminal device, and this device can be configured in any type of electronic device, such as a tablet computer, a television, a mobile phone, a computer, etc., which is not limited here.

[0030] In the embodiments of the present disclosure, the "SAR reduction device of the terminal device" will be used as the execution subject to execute the "SAR reduction method of the terminal device" for illustration, which is not limited here.

[0031] It should be noted that the description order of the following embodiments does not limit the priority order of the embodiments.

[0032] Figure 1 It is a schematic flowchart of the SAR reduction method of the terminal device provided according to the first embodiment of the present disclosure.

[0033] As Figure 1As shown, the method includes:

[0034] Step 101, monitor the target event satisfied by the current wireless network Wifi usage scenario to obtain a monitoring result.

[0035] Among them, the Wifi usage scenario can be a specific scenario when the current terminal device uses the Wifi technology. For example, the user makes a network call or video chat through the use of Wifi, or the user watches a video on the terminal device using Wifi, etc., which is not limited here.

[0036] The target event in the embodiments of the present disclosure can be a specific operation or a specific event that appears in the current Wifi usage scenario. It can be understood that for different Wifi usage scenarios, the types and quantities of satisfied target events may be different.

[0037] Optionally, the target event includes at least one of the following:

[0038] Turn on the earpiece;

[0039] Turn on the hotspot;

[0040] Turn on the dual-band concurrent DBS function; or

[0041] Turn on the cellular and Wifi co-transmission function.

[0042] Among them, turning on the earpiece refers to the operation of the terminal device switching the audio output channel to the earpiece mode. It usually appears in scenarios where voice calls, listening to voice messages, etc. require using the earpiece to obtain sound. Turning on the earpiece may have a certain association with the use of WiFi. For example, during a call, WiFi may be used for data transmission at the same time, such as sending or receiving files, pictures, etc. At this time, it can be used as a target event for monitoring the WiFi usage scenario.

[0043] Among them, turning on the hotspot means that the terminal device turns on the wireless hotspot function and shares its own mobile network or the connected WiFi network with other devices for use. When the hotspot is turned on, the device will perform data transmission while sharing the network, and the working state of its WiFi module will change, involving more data traffic and connection management operations, etc. Therefore, it can be used as a target event for monitoring the WiFi usage scenario.

[0044] Among them, enabling the DBS (Dual Band Simultaneous, dual-band simultaneous transmission of Wi-Fi) function means that the Wi-Fi device can simultaneously perform data transmission on the two frequency bands of 2.4 GHz and 5 GHz. After enabling this DBS function, the device can intelligently switch between the two frequency bands or use both frequency bands simultaneously for data transmission according to the network environment and data transmission requirements, so as to improve network performance and stability. Enabling the dual-band concurrent DBS function will change the working mode and transmission characteristics of Wi-Fi, so it can be used as a target event for monitoring Wi-Fi usage scenarios.

[0045] Among them, enabling the co-transmission function of cellular and Wi-Fi means that the terminal device simultaneously uses the cellular network (such as 2G, 3G, 4G, 5G network) and the Wi-Fi network for data transmission. In this case, the device can send data through the cellular network and the Wi-Fi network simultaneously according to the network condition and application requirements, so as to improve the speed and reliability of data transmission. After enabling this function, the network connection and data transmission situation of the device will become more complex, so it can be used as a target event for monitoring Wi-Fi usage scenarios.

[0046] It should be noted that the target event can include any one or more of the above, or can also include others, which are not limited here.

[0047] Among them, the monitoring result can be the number and type of target events satisfied by the current Wi-Fi usage scenario.

[0048] Optionally, after the terminal device enters the power-on state, it can set the transmission power of Wi-Fi to the maximum power, and then based on the Framework layer, monitor the target events satisfied by the current Wi-Fi usage scenario to obtain the monitoring result.

[0049] It should be noted that after the terminal device is powered on, the power of Wi-Fi can be set to the normal power, that is, the maximum power. This is an initial state after the Wi-Fi function of the terminal device is started, so that the Wi-Fi module can work with the maximum transmission power that can be achieved, so as to provide better network connection performance within a certain range.

[0050] As an example, if the terminal device is a mobile phone, the Framework layer in the mobile phone can be used to monitor the target events satisfied by the current Wi-Fi usage scenario.

[0051] Among them, the framework layer is an important layer in the mobile operating system, providing rich APIs (Application Programming Interfaces) for the application layer and closely collaborating with the underlying driver layer and kernel layer. It accesses hardware devices by calling the interfaces provided by the driver layer, converts the operation requests of the application layer for hardware into specific hardware instructions, and sends them to the driver program to achieve hardware control. The framework layer can be responsible for real-time monitoring of the state changes of various target events in the application layer, continuously checking whether the functions corresponding to these target events are turned on or off, and whether their states have changed.

[0052] Step 102: Based on the monitoring results, determine the specific absorption ratio (SAR) scenario for reducing electromagnetic waves corresponding to the current Wi-Fi usage scenario.

[0053] Among them, the specific absorption rate (SAR) of electromagnetic waves is a physical quantity used to measure the rate at which a biological organism (such as the human body) absorbs electromagnetic energy when exposed to electromagnetic wave radiation. SAR is defined as the electromagnetic power absorbed or consumed by a unit mass of biological tissue, and the unit is watts per kilogram.

[0054] Taking the terminal device as a mobile phone as an example, the mobile phone emits electromagnetic waves during operations such as making calls and surfing the Internet, and its SAR value is an important indicator to measure the radiation level of the mobile phone. Mobile phone manufacturers need to conduct strict tests and controls on the SAR value of mobile phones to ensure that while meeting relevant safety standards, good communication services are provided to users. Generally speaking, the closer the mobile phone is to the human body, the more electromagnetic energy the human body absorbs, and the higher the SAR value.

[0055] Among them, the SAR reduction scenario can be a specific scenario divided according to factors such as different function combinations and network connection states during the use of the terminal device. In these scenarios, the SAR of the mobile phone needs to be controlled within a safe range. In these scenarios, the terminal device adjusts relevant parameters, such as Wi-Fi power, to reduce the potential impact of SAR radiation on the human body.

[0056] Optionally, based on a preset mapping relationship and the target events satisfied by the current Wi-Fi usage scenario, the SAR reduction scenario corresponding to the current Wi-Fi usage scenario can be determined, where different SAR reduction scenarios correspond to different power parameters.

[0057] As an example, as shown in the following table (Table 1), the following table is a mapping table used to record the SAR reduction scenarios corresponding to different Wi-Fi usage scenarios. The target events satisfied by different Wi-Fi usage scenarios are different. The Wi-Fi usage scenarios corresponding to the same SAR reduction scenario may be one or more.

[0058] Table 1

[0059]

[0060] It should be noted that the target events required for different Wifi usage scenarios and the corresponding SAR reduction scenarios for different Wifi usage scenarios can be pre-recorded. Thus, the terminal device can determine the type of the current Wifi usage scenario according to the target event satisfied by the current Wifi usage scenario, and then can judge the SAR reduction scenario corresponding to the type of the Wifi usage scenario according to the mapping relationship.

[0061] As an example, if there are 4 target events, namely turning on the earpiece, turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the co-transmission function of cellular and Wifi, the SAR reduction scenario can be judged in the following way.

[0062] For example, if the target events satisfied by the current Wifi usage scenario include turning on the earpiece, it is determined that the SAR reduction scenario corresponding to the current Wifi usage scenario is the first SAR reduction scenario. As shown in the above table, the corresponding Wifi usage scenario is Usage Scenario 1.

[0063] Among them, the first SAR reduction scenario can include 2 different Wifi usage scenarios, such as only turning on the earpiece, or only turning on the earpiece and the hotspot, which are not limited here. In the first SAR reduction scenario, the user usually needs to make a call with the earpiece, may also need to turn on the hotspot, and use the Wifi single band. Since it only works with the Wifi single band, compared with the situation of working with multiple bands simultaneously or concurrent multi-network modes, its radio frequency transmission power is relatively single and stable, so the overall SAR limit value is relatively low and at a relatively stable level, and generally there will be no significant fluctuations in the SAR value.

[0064] It should be noted that if the target events satisfied by the current Wifi usage scenario include turning on the earpiece, it means that the target events of turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the co-transmission function of cellular and Wifi are not satisfied. This kind of Wifi usage scenario is usually that the user makes a call with the earpiece only through the Wifi single band, which is a common scenario.

[0065] Generally speaking, when in the scenario of making a call with the earpiece only using the Wifi single band and turning off the hotspot, since there is no co-transmission of the cellular network and Wifi and no hotspot sharing, the Wifi network can usually work more stably, and generally there will be no network fluctuations caused by frequency band switching or multi-task network processing.

[0066] Optionally, if the target events satisfied by the current Wi-Fi usage scenario include turning on the earpiece and turning on the hotspot, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the first SAR reduction scenario. As shown in the above table, the Wi-Fi usage scenario corresponds to Usage Scenario 2.

[0067] It should be noted that if the target events satisfied by the current Wi-Fi usage scenario include turning on the earpiece and turning on the hotspot, it means that the target events of turning on the dual-band concurrent DBS function and turning on the co-transmission function of cellular and Wi-Fi are not satisfied. This type of Wi-Fi usage scenario is usually when the user makes a call using only the Wi-Fi single band through the earpiece and shares the hotspot at the same time, which is a common scenario. In this scenario, in addition to maintaining the RF transmission for Wi-Fi calls, the terminal device also needs to provide additional RF transmission for the hotspot function for data sharing, which will increase the overall RF transmission power of the terminal device, resulting in an increase in the SAR value compared to when the hotspot is turned off.

[0068] Optionally, if the current Wi-Fi usage scenario does not satisfy each target event, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the second SAR reduction scenario.

[0069] Among them, the second SAR reduction scenario can be the scenario of turning off the earpiece, turning off the hotspot, turning off the dual-band concurrent DBS function, and turning off the co-transmission function of cellular and Wi-Fi.

[0070] It should be noted that since there is no simultaneous transmission of the cellular network and Wi-Fi, and there is no additional RF transmission brought by the earpiece and hotspot functions, the terminal device only performs data transmission through the Wi-Fi single band, and its RF transmission source is relatively single and the working state is relatively stable. Therefore, the overall SAR limit is at a relatively low level. For example, in a normal network environment, when the terminal device connects to Wi-Fi at a normal power to perform operations such as online video viewing, web browsing, or social networking, the SAR value will not fluctuate significantly and can remain at a relatively stable low level.

[0071] It is understandable that in this scenario, the earpiece and hotspot functions are turned off, and the cellular network is not used either. Therefore, there is no such situation as co - interference or power superposition between these functions and Wi - Fi that would affect the SAR limit. The terminal device mainly focuses on data transmission in a single - band Wi - Fi. The SAR limit mainly depends on factors such as the working state of the Wi - Fi module and the distance from the human body. When the user holds the terminal device to watch online videos, browse the web, or perform social operations, the distance between the terminal device and the human body is relatively close, generally within dozens of centimeters. The closer the distance, the more electromagnetic radiation absorbed by human tissues, and the relatively higher the SAR value. When watching an online video, if the video clarity is high and the data traffic is large, the Wi - Fi module of the terminal device needs to process more data and may appropriately increase the transmission power, and the SAR value will also increase accordingly.

[0072] Optionally, if the target event satisfied by the current Wi - Fi usage scenario includes enabling the DBS function, determine that the SAR - reducing scenario corresponding to the current Wi - Fi usage scenario is the third SAR - reducing scenario. As shown in the above table, the corresponding Wi - Fi usage scenario is Usage Scenario 3.

[0073] It is understandable that in the third SAR - reducing scenario, the usage scenario of the end - user is to connect to both the Wi - Fi 2.4G signal and the Wi - Fi 5G signal simultaneously and access the Internet only through the Wi - Fi network to perform operations such as watching online videos, browsing the web, and socializing. The trigger conditions at this time are "turn off the earpiece, turn off the hotspot, enable the DBS function, and turn off the co - transmission function of the cellular network and Wi - Fi". Since dual - band Wi - Fi is used, compared with the single - band Wi - Fi scenario, the radio - frequency transmission power of the mobile phone may increase, and the SAR value will theoretically be relatively higher. However, because the cellular network is not used and the earpiece and hotspot functions are turned off, other factors that may increase electromagnetic radiation are avoided. Therefore, the overall SAR value may still be within the safety limit, but compared with the scenario of accessing the Internet through single - band Wi - Fi, it may be closer to the upper limit of the SAR limit.

[0074] Among them, the first SAR - reducing scenario, the second SAR - reducing scenario, and the third SAR - reducing scenario are different.

[0075] Optionally, if the target event satisfied by the current Wi - Fi usage scenario includes enabling the earpiece and enabling the DBS function, determine that the SAR - reducing scenario corresponding to the current Wi - Fi usage scenario is the sixth SAR - reducing scenario. As shown in the above table, the corresponding Wi - Fi usage scenario is Usage Scenario 9.

[0076] Among them, the sixth SAR - reducing scenario includes Usage Scenario 9 and Usage Scenario 10 in Table 1 above.

[0077] It should be noted that in this Wi-Fi usage scenario, the terminal device is connected to both the 2.4G and 5G Wi-Fi signals simultaneously, enabling it to comprehensively utilize the advantages of the 2.4G frequency band with wide coverage and strong wall-penetrating ability, as well as the 5G frequency band with high speed and large bandwidth, ensuring stable network during calls and smooth voice data transmission. Since the DBS function is enabled, it can intelligently switch between the 2.4G and 5G frequency bands according to the network environment and signal quality, improving network performance. Cellular and Wi-Fi do not transmit simultaneously, reducing interference and power consumption caused by multi-network mode concurrency. The earpiece is turned on for calls, and the hotspot is turned off to avoid the additional impact of the hotspot function on the network and power consumption.

[0078] In usage scenario 9, due to the activation of the DBS function, the terminal device switches between dual-band Wi-Fi, and the radio frequency emission is relatively complex. Compared with the single-band Wi-Fi usage scenario, the SAR value is usually slightly higher. However, since cellular and Wi-Fi do not transmit simultaneously, the interference and radiation superposition caused by multiple networks working simultaneously are reduced, so the SAR value can remain relatively stable and fluctuate within the safety limit.

[0079] Optionally, if the target events satisfied by the current Wi-Fi usage scenario include turning on the hotspot, activating the DBS function, and turning on the earpiece function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the sixth SAR reduction scenario. As shown in the above table, the Wi-Fi usage scenario corresponds to usage scenario 10.

[0080] Among them, usage scenario 10 also has the advantage of dual-band Wi-Fi connection to ensure the quality of the call network. The difference from usage scenario 9 is that the hotspot is turned on, which means that while the terminal device is making a call using the earpiece, it also shares its own network with other devices, increasing network tasks and system load. After turning on the hotspot in usage scenario 10, in addition to maintaining the radio frequency emissions for calls and Wi-Fi frequency band switching, the terminal device also needs to provide radio frequency support for the hotspot function, resulting in an increase in data transmission volume and transmission power, causing its SAR value to increase compared to usage scenario 9 and be closer to the upper limit of the safety limit, but still within the safe range.

[0081] As Figure 2 shown, Figure 2Shows a schematic diagram of the division of the SAR reduction scenarios. First, it can be divided into two major categories according to whether the DBS function is enabled. If the DBS function is not enabled, it is further determined whether the cellular network and Wifi are transmitting simultaneously. If the cellular network and Wifi are not transmitting simultaneously, it is further determined whether the earpiece is turned on. If the earpiece is turned on, the current Wifi usage scenario is the first SAR reduction scenario. If the earpiece is not turned on, it is further determined whether the hotspot is turned on. If the hotspot is not turned on, the current Wifi usage scenario is the second SAR reduction scenario. If the hotspot is turned on, it means that the current Wifi usage scenario is the fourth SAR reduction scenario. If the cellular network and Wifi are transmitting simultaneously, the current Wifi usage scenario is the fourth SAR reduction scenario.

[0082] If the DBS function is enabled, it is further determined whether the cellular network and Wifi are transmitting simultaneously. If the cellular network and Wifi are not transmitting simultaneously, it is further determined whether the earpiece is turned on. If the earpiece is turned on, the current Wifi usage scenario is the sixth SAR reduction scenario. If the earpiece is not turned on, it is further determined whether the hotspot is turned on. If the hotspot is not turned on, the current Wifi usage scenario is the third SAR reduction scenario. If the hotspot is turned on, it means that the current Wifi usage scenario is the fifth SAR reduction scenario. If the cellular network and Wifi are transmitting simultaneously, the current Wifi usage scenario is the fifth SAR reduction scenario.

[0083] Step 103, based on the SAR reduction scenarios, adjust the corresponding power parameters of the terminal device.

[0084] It should be noted that during the use of some terminal devices (such as mobile phones), to ensure the safety of SAR radiation to the human body, corresponding power parameters need to be set to reduce SAR. Among them, the power parameter can be the Wifi transmission power used by the terminal device to achieve SAR reduction.

[0085] As an example, according to Table 2 shown below, a total of 6 types of SAR reduction scenarios are divided, and each type of SAR reduction scenario corresponds to a dedicated power parameter.

[0086] Specifically, in practical applications, for each type of SAR reduction scenario and its corresponding power parameter, a professional third-party certification agency will be entrusted to strictly detect the SAR of the terminal device, so as to ensure that the SAR detection value of the mobile phone under each type of SAR reduction scenario is always within the safe limit range.

[0087] It should be noted that usually, for different types of SAR reduction scenarios, their corresponding power parameters are usually different. Taking the Wifi SAR reduction parameters as an example, a typical configuration of the Wifi SAR reduction parameters of a smart phone is shown in Table 2 below:

[0088] Table 2

[0089]

[0090] Combined with Table 1 in the above embodiments, for usage scenario 1 and usage scenario 2, the power parameter adopted can be 18 dBm. For usage scenario 3, the power parameter adopted can be 17 dBm. For the above usage scenarios 9 and 10, the power parameter adopted can be 10 dBm, which is not limited herein.

[0091] It should be noted that in the existing usage scenarios, the Wifi power is usually configured uniformly at 10 dBm. Although such a configuration reduces the overall Wifi power of the terminal device, for users, it is very likely to cause stuttering and discontinuity when watching videos online, seriously affecting the user experience and unable to bring a friendly and smooth usage feeling to users.

[0092] In the embodiments of the present disclosure, first, monitor the target event satisfied by the current wireless network Wifi usage scenario to obtain a monitoring result. Then, based on the monitoring result, judge the specific absorption ratio (SAR) scenario corresponding to the current WiFi usage scenario for reducing electromagnetic waves. After that, based on the reduced SAR scenario, adjust the power parameter corresponding to the terminal device. Thus, by monitoring the target event of the wireless network Wi-Fi usage scenario, judging the reduced SAR scenario, and adjusting the power parameter, it can be ensured that the SAR value of the terminal device is always within a safe range in various usage scenarios, reducing the potential harm that electromagnetic radiation may cause to the human body and allowing users to use the device with confidence. Reasonably adjusting the power parameter in different scenarios can optimize the Wi-Fi network performance. For example, when making a call with a dual-band Wi-Fi connection, adjusting the power according to the characteristics of the scenario can better utilize the advantages of the 2.4G and 5G frequency bands, ensure network stability, reduce call stuttering and disconnection, etc., and improve the user's network experience. Precisely adjusting the power according to the actual usage scenario can avoid unnecessary high-power operation and reduce the device power consumption. For example, reducing the power in the hotspot-off scenario can reduce power consumption and extend the battery life, facilitating users to continuously use the device when they are out and unable to charge in time. Different usage scenarios correspond to different network environments and user requirements. By dynamically adjusting the power parameter, the device can better adapt to various complex usage environments and diverse user operation habits, enhancing the compatibility and applicability of the device.

[0093] Figure 3 It is a schematic diagram of the overall implementation algorithm of a SAR reduction mechanism. As Figure 3As shown, after the terminal device is powered on, the WiFi transmission power can be set to the maximum power first, and then the application layer can operate on 4 target events. Subsequently, based on the framework layer, these 4 target events are monitored, and then according to the monitoring results, the SAR reduction scenario is identified and sent to the driver layer. The driver layer calls the power parameters and then reduces the power in the current SAR reduction scenario. After that, the framework layer further monitors these 4 target events.

[0094] Figure 4 It is a schematic flowchart of the SAR reduction method for a terminal device according to the second embodiment of the present disclosure.

[0095] As Figure 4 shown, the method includes:

[0096] Step 201, monitor the target events satisfied by the current wireless network Wifi usage scenario to obtain a monitoring result.

[0097] It should be noted that there are 4 target events in the embodiments of the present disclosure, namely turning on the earpiece, turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the co-transmission function of cellular and Wifi.

[0098] It should be noted that the specific implementation manner of step 201 can refer to the above embodiments and will not be elaborated here.

[0099] Step 202, if the target events satisfied by the current Wifi usage scenario include turning on the co-transmission function of cellular and Wifi, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fourth SAR reduction scenario.

[0100] It should be noted that the Wifi usage scenario corresponding to step 202 is usage scenario 4 in Table 1 in the above step 102.

[0101] In this Wifi usage scenario, the terminal device accesses the Internet through the cellular network and turns off the earpiece and the hotspot. At this time, the terminal device is usually focused on data browsing and other operations through the cellular network. It is connected to Wi-Fi in single band without additional functions enabled, and the radio frequency transmission is relatively simple.

[0102] Step 203, if the target events satisfied by the current Wifi usage scenario include turning on the co-transmission function of cellular and Wifi and turning on the hotspot, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fourth SAR reduction scenario.

[0103] It should be noted that the Wifi usage scenario corresponding to step 203 is usage scenario 5 in Table 1 in the above step 102.

[0104] In this Wi-Fi usage scenario, the terminal device has to handle data transmission of the cellular network and support the hotspot function simultaneously, which increases the network load and the complexity of radio frequency (RF) transmission. The RF transmission in Usage Scenario 5 is complex, and the concurrency of multiple functions leads to variable electromagnetic radiation conditions. To ensure that the specific absorption rate (SAR) value remains within the safe range, it is necessary to reasonably adjust the power parameters of the terminal device. For example, when a smart terminal device is connected to a single-band Wi-Fi, the terminal accesses the Internet through the cellular network, turns on the hotspot, and both the cellular and Wi-Fi transmit simultaneously.

[0105] Step 204, if the target events satisfied by the current Wi-Fi usage scenario include turning on the hotspot, turning on the earpiece, and turning on the function of simultaneous transmission of the cellular network and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fourth SAR reduction scenario.

[0106] It should be noted that the Wi-Fi usage scenario corresponding to Step 204 is Usage Scenario 7 in Table 1 in the above Step 102.

[0107] In this Wi-Fi usage scenario, the terminal device has simultaneously turned on the hotspot, the earpiece, and the function of simultaneous transmission of the cellular network and Wi-Fi. This means that on the one hand, the terminal device has to make a voice call through the cellular network (using the earpiece), on the other hand, it has to handle data transmission of both the Wi-Fi and the cellular network simultaneously, and also share its own network as a hotspot to other devices. Multiple complex functions are running simultaneously. There may be a situation where the user is making a call through the cellular network while needing to download files or watch online videos using Wi-Fi, and at the same time, provide a network hotspot for other devices around. For example, when on a business trip on a train, communicating with colleagues about work by phone through the terminal device's cellular network, viewing online documents using the terminal device's Wi-Fi, and providing a hotspot for colleagues without network traveling together. Due to the simultaneous activation of multiple transmission functions, the RF transmission power of the terminal device is at a relatively high level. According to the positive correlation between SAR and transmission power, the electromagnetic radiation of the terminal device has a tendency to increase at this time, and the SAR value may increase significantly, having a relatively large potential electromagnetic radiation impact on the human body.

[0108] Step 205, if the target events satisfied by the current Wi-Fi usage scenario include turning on the earpiece and turning on the function of simultaneous transmission of the cellular network and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fourth SAR reduction scenario.

[0109] It should be noted that the Wi-Fi usage scenario corresponding to Step 205 is Usage Scenario 6 in Table 1 in the above Step 102.

[0110] In this Wi-Fi usage scenario, the terminal device enables both the earpiece function and the concurrent cellular and Wi-Fi transmission function. This means that the user is using the terminal device for a voice call while the terminal device is also transmitting data via the cellular network and the Wi-Fi network. For example, while making a phone call, the user is also using Wi-Fi to download files or updating software via the cellular network. The voice data is transmitted through the voice channel of the cellular network, while other data services can be transmitted at high speed via Wi-Fi or may be transmitted via the cellular network as a supplementary or backup channel. Two different types of data are processed in parallel at the same time.

[0111] Among them, since the cellular network and Wi-Fi transmit signals simultaneously, the radio frequency transmission activity of the terminal device increases, resulting in a relatively high electromagnetic radiation intensity. When the earpiece is turned on for a voice call, the terminal device is close to parts of the human body such as the head, and at this time, the impact of electromagnetic radiation on the human body is more direct, which may cause the SAR value to increase.

[0112] Step 206, if the target events satisfied by the current Wi-Fi usage scenario include turning on the hotspot, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fourth SAR reduction scenario.

[0113] It should be noted that the Wi-Fi usage scenario corresponding to step 206 is usage scenario 9 in Table 1 in the above step 102.

[0114] In this Wi-Fi usage scenario, the hotspot function is turned on, and the terminal device shares its own network connection (such as the cellular network or Wi-Fi network) with other devices, enabling other surrounding electronic devices to access the network by connecting to this hotspot, meeting the need for multiple devices to access the Internet simultaneously. The terminal device not only needs to receive data from the network but also forward this data to other devices connected to the hotspot. Data transmission exists in multiple directions, including not only downlink data from the network to the terminal device but also uplink data from the terminal device to other connected devices. The management and allocation of data traffic are relatively complex.

[0115] It can be understood that in order to maintain the hotspot function, the terminal device needs to continuously transmit radio frequency signals to interact with the devices connected to the hotspot. Moreover, as the number of connected devices increases and the data transmission volume changes, parameters such as the power and frequency of radio frequency transmission will also be continuously adjusted, resulting in a relatively complex electromagnetic radiation situation. The SAR value may vary with the number of connected devices: the more devices connected to the hotspot, the greater the amount of data the terminal device needs to process. Usually, the transmission power needs to be increased to ensure the stability of the network connection and the efficiency of data transmission, which may lead to an increase in the SAR value. Conversely, when the number of connected devices is small or the data transmission volume is small, the SAR value will be relatively low, that is, the SAR value has a certain correlation with the number of connected devices and the data transmission load.

[0116] Step 207: Based on the SAR reduction scenario, adjust the power parameters corresponding to the terminal device.

[0117] It should be noted that the specific implementation manner of step 207 can refer to the above embodiments and will not be elaborated here.

[0118] In the embodiments of the present disclosure, first, monitor the target event satisfied by the current wireless network Wifi usage scenario to obtain a monitoring result. If the target event satisfied by the current Wifi usage scenario includes enabling the co - transmission function of cellular and Wifi, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fourth SAR reduction scenario. If the target event satisfied by the current Wifi usage scenario includes enabling the co - transmission function of cellular and Wifi and enabling the hotspot, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fourth SAR reduction scenario. If the target event satisfied by the current Wifi usage scenario includes enabling the hotspot, enabling the earpiece, and enabling the co - transmission function of cellular and Wifi, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fourth SAR reduction scenario. If the target event satisfied by the current Wifi usage scenario includes enabling the earpiece and enabling the co - transmission function of cellular and Wifi, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fourth SAR reduction scenario. If the target event satisfied by the current Wifi usage scenario includes enabling the hotspot, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fourth SAR reduction scenario. Finally, based on the SAR reduction scenario, adjust the power parameters corresponding to the terminal device. Thus, by monitoring and determining that a specific Wi - Fi usage scenario is the fourth SAR reduction scenario and adjusting the power parameters, the electromagnetic radiation level of terminal devices such as mobile phones can be effectively reduced, the potential harm that may be caused to the user's body can be reduced, and the user's health can be protected. By reasonably adjusting the power parameters, the device can work more stably during multitasking operation, avoiding problems such as overheating and freezing of the device caused by too high power, and improving the overall performance and service life of the device. While ensuring the reduction of the SAR value, through precise power adjustment, it is still possible to ensure the normal operation of functions such as cellular networks, Wi - Fi, and hotspots, maintain good network connection quality, and provide users with a smoother call, data transmission, and network sharing experience.

[0119] Figure 5 It is a schematic flowchart of the SAR reduction method for a terminal device according to the third embodiment of the present disclosure.

[0120] As Figure 5 shown, the method includes:

[0121] Step 301: Monitor the target event satisfied by the current wireless network Wifi usage scenario to obtain a monitoring result.

[0122] It should be noted that there are 4 target events in the embodiments of the present disclosure, namely turning on the earpiece, turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the function of concurrent transmission of cellular and Wi-Fi.

[0123] It should be noted that the specific implementation manner of step 301 can refer to the above embodiments and will not be elaborated here.

[0124] Step 302, if the target events satisfied by the current Wi-Fi usage scenario include turning on the DBS function and turning on the function of concurrent transmission of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario.

[0125] It should be noted that the Wi-Fi usage scenario corresponding to step 302 is usage scenario 9 in Table 1 in the above step 102.

[0126] Specifically, in this scenario, the DBS function and the function of concurrent transmission of cellular and Wi-Fi are turned on simultaneously. The DBS function usually involves dynamic adjustment and optimization of signal transmission, etc., and cooperates with the function of concurrent transmission of cellular and Wi-Fi. The device needs to highly coordinate various signal processing and transmission mechanisms to ensure the stability and efficiency of network connection.

[0127] It should be noted that since the DBS function dynamically adjusts the transmission parameters of the device according to different situations, combined with the complexity of signal transmission when cellular and Wi-Fi are transmitted concurrently, the electromagnetic radiation of the device shows complex dynamic change characteristics. Parameters such as the intensity and frequency of electromagnetic radiation may be frequently adjusted with factors such as changes in the network environment and the amount of data transmission, resulting in continuous changes in the SAR value.

[0128] Step 303, if the target events satisfied by the current Wi-Fi usage scenario include turning on the earpiece, turning on the function of concurrent transmission of cellular and Wi-Fi, and turning on the DBS function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario.

[0129] It should be noted that the Wi-Fi usage scenario corresponding to step 303 is usage scenario 14 in Table 1 in the above step 102.

[0130] Specifically, this scenario covers multiple tasks such as voice calls (turning on the earpiece), multi-network connection (concurrent transmission of cellular and Wi-Fi), and signal optimization (turning on the DBS function). These tasks run simultaneously, and the device needs to handle voice data while taking into account data transmission on different networks and optimize the overall network signal through the DBS function. These functions are interrelated and affect each other, and have high requirements for the device's system resource allocation and collaborative processing capabilities.

[0131] It should be noted that when multiple functions run simultaneously, the device needs to handle the transmission and reception of various signals such as voice and data at the same time, and the transmission power is relatively large. Especially when the network signal is poor, the DBS function may increase the transmission power to ensure network connection and call quality, which will cause the overall SAR value of the device to tend to increase. Compared with when only a single function is turned on, the risk that the SAR value exceeds the safety standard is relatively large.

[0132] Step 304, if the target events satisfied by the current Wifi usage scenario include turning on the hotspot, turning on the DBS function, turning on the earpiece, and turning on the co - transmission function of cellular and Wifi, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fifth SAR reduction scenario.

[0133] It should be noted that the Wifi usage scenario corresponding to step 304 is usage scenario 15 in Table 1 of the above step 102.

[0134] Specifically, this usage scenario 15 combines turning on the hotspot, the DBS function, the earpiece, and the co - transmission function of cellular and Wifi. Turning on the hotspot means that the device has to undertake the task of network sharing and provide network connection for other devices; the DBS function needs to dynamically optimize and manage the network signal; turning on the earpiece involves the processing of voice calls; and the co - transmission of cellular and Wifi requires data transmission through two network channels simultaneously. When multiple functions run simultaneously and are intertwined, the working mode of the device becomes extremely complex.

[0135] It should be noted that since multiple functions run simultaneously, the RF transmission module of the device needs to handle the signal transmission of multiple tasks at the same time, resulting in a generally higher transmission power. Moreover, as the network and signal requirements of different functions change, such as the increase or decrease in the number of devices connected to the hotspot, the strength change of cellular and Wifi network signals, the change in the bandwidth requirement of voice calls, etc., the transmission power of the device will be continuously adjusted, thus causing the electromagnetic radiation intensity to fluctuate greatly. Correspondingly, the SAR value will also fluctuate frequently at a relatively high level.

[0136] Step 305, if the target events satisfied by the current Wifi usage scenario include turning on the hotspot, turning on the DBS function, and turning on the co - transmission function of cellular and Wifi, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fifth SAR reduction scenario.

[0137] It should be noted that the Wifi usage scenario corresponding to step 305 is usage scenario 13 in Table 1 of the above step 102.

[0138] Among them, in the current scenario, the functions of simultaneous hotspot, cellular and Wi-Fi transmission as well as DBS function are enabled. Enabling the hotspot allows the device to provide network connections for other terminals. The simultaneous cellular and Wi-Fi transmission enables the device to utilize two network channels for data transmission simultaneously. The DBS function is responsible for intelligently optimizing network signals. These functions cooperate with each other to meet the user's requirements for high-speed and stable networks in complex network environments.

[0139] Since the device enables multiple functions related to network transmission simultaneously, the RF module needs to continuously transmit and receive signals to maintain the normal operation of the hotspot, cellular, and Wi-Fi networks. This makes the device's transmission power relatively large, resulting in a relatively high electromagnetic radiation intensity, and the corresponding SAR value will also be at a relatively high level.

[0140] Step 306, if the target events satisfied by the current Wi-Fi usage scenario include enabling the hotspot and enabling the DBS function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario.

[0141] It should be noted that the Wi-Fi usage scenario corresponding to step 306 is usage scenario 16 in Table 1 in the above step 102.

[0142] It should be noted that the hotspot and DBS functions are enabled simultaneously in this scenario. On the one hand, the DBS function continuously monitors the surrounding network environment, dynamically manages and optimizes the frequency bands, enabling the device to find the most suitable channel among numerous frequency bands for data transmission and improving network transmission efficiency. On the other hand, the hotspot function provides its own network to other devices in a shared manner.

[0143] Among them, enabling the hotspot requires the RF module of the device to continuously work to transmit signals to maintain the connection of the hotspot network. At the same time, the DBS function also needs to perform certain signal transmission and detection to achieve dynamic selection of frequency bands. This causes the device to generate a certain intensity of electromagnetic radiation, and the corresponding SAR value will also be at a relatively high level, but generally within the safety standard range. Since the DBS function dynamically adjusts the device's transmission power and frequency band usage according to changes in the surrounding network environment, such as frequency band interference and signal strength. When the network environment is complex and the interference is large, the device may increase the transmission power to ensure network connection, and at this time the SAR value will increase; while when the network environment is good, the device's transmission power decreases, and the SAR value will also decrease accordingly. Therefore, the SAR value shows the characteristic of dynamic change.

[0144] Step 307, based on the SAR reduction scenario, adjust the power parameters corresponding to the terminal device.

[0145] It should be noted that the specific implementation method of step 307 can refer to the above embodiments and will not be elaborated here.

[0146] In the embodiments of the present disclosure, first, monitor the target events satisfied by the current wireless network Wi-Fi usage scenario to obtain a monitoring result. If the target events satisfied by the current Wi-Fi usage scenario include enabling the DBS function and enabling the co-transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario. If the target events satisfied by the current Wi-Fi usage scenario include enabling the earpiece, enabling the co-transmission function of cellular and Wi-Fi, and enabling the DBS function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario. If the target events satisfied by the current Wi-Fi usage scenario include enabling the hotspot, enabling the DBS function, enabling the earpiece, and enabling the co-transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario. If the target events satisfied by the current Wi-Fi usage scenario include enabling the hotspot, enabling the DBS function, and enabling the co-transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario. If the target events satisfied by the current Wi-Fi usage scenario include enabling the hotspot and enabling the DBS function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario. Finally, based on the SAR reduction scenario, adjust the power parameters corresponding to the terminal device. Thus, by monitoring and determining a specific Wi-Fi usage scenario as the fifth SAR reduction scenario and adjusting the power parameters, the electromagnetic radiation level of terminal devices such as mobile phones can be effectively reduced, the potential harm that may be caused to the user's body can be reduced, and the user's health can be protected. Reasonably adjusting the power parameters can make the device work more stably during multitasking operation, avoid problems such as overheating and freezing of the device caused by too high power, and improve the overall performance and service life of the device.

[0147] To facilitate better implementation of the SAR reduction method for the terminal device of the present disclosure, the present disclosure also provides a SAR reduction device for the terminal device based on the above-mentioned SAR reduction method for the terminal device. The meanings of the nouns are the same as those in the above-mentioned SAR reduction method for the terminal device, and the specific implementation details can refer to the description in the method embodiments.

[0148] Please refer to Figure 6 , Figure 6 which is a schematic structural diagram of the SAR reduction device for the terminal device provided by the embodiments of the present disclosure. The SAR reduction device 600 for the terminal device includes:

[0149] A monitoring module 610, configured to monitor the target events satisfied by the current wireless network Wi-Fi usage scenario to obtain a monitoring result;

[0150] A judgment module 620, configured to judge the SAR (specific absorption rate) scenario for reducing electromagnetic waves corresponding to the current Wi-Fi usage scenario based on the monitoring result;

[0151] An adjustment module 630, configured to adjust the power parameters corresponding to the terminal device based on the SAR reduction scenario.

[0152] Optionally, the number of the target events is one or more, and the monitoring module includes:

[0153] A first determination unit, configured to determine the SAR reduction scenario corresponding to the current Wifi usage scenario based on a preset mapping relationship and the target event satisfied by the current Wifi usage scenario, where different SAR reduction scenarios correspond to different power parameters.

[0154] Wherein, the target event includes at least one of the following:

[0155] Turn on the earpiece;

[0156] Turn on the hotspot;

[0157] Turn on the dual-band concurrent DBS function; or

[0158] Turn on the function of concurrent transmission of cellular and Wifi.

[0159] Optionally, the target event includes: turning on the earpiece, turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the function of concurrent transmission of cellular and Wifi.

[0160] The first determination unit is specifically configured to:

[0161] If the target event satisfied by the current Wifi usage scenario includes turning on the earpiece, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the first SAR reduction scenario;

[0162] Or,

[0163] If the target event satisfied by the current Wifi usage scenario includes turning on the earpiece and turning on the hotspot, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the first SAR reduction scenario;

[0164] Or,

[0165] If the current Wifi usage scenario does not satisfy each target event, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the second SAR reduction scenario;

[0166] Or,

[0167] If the target event satisfied by the current Wifi usage scenario includes turning on the DBS function, determine that the SAR reduction scenario corresponding to the current Wifi usage scenario is the third SAR reduction scenario.

[0168] Among them, the first SAR reduction scenario, the second SAR reduction scenario, and the third SAR reduction scenario are different.

[0169] If the target event satisfied by the current Wi-Fi usage scenario includes enabling the co - transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fourth SAR reduction scenario;

[0170] Or,

[0171] If the target event satisfied by the current Wi-Fi usage scenario includes enabling the co - transmission function of cellular and Wi-Fi and enabling the hotspot, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fourth SAR reduction scenario;

[0172] Or,

[0173] If the target event satisfied by the current Wi-Fi usage scenario includes enabling the hotspot, enabling the earpiece, and enabling the co - transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fourth SAR reduction scenario;

[0174] Or,

[0175] If the target event satisfied by the current Wi-Fi usage scenario includes enabling the earpiece and enabling the co - transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fourth SAR reduction scenario;

[0176] Or,

[0177] If the target event satisfied by the current Wi-Fi usage scenario includes enabling the hotspot, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fourth SAR reduction scenario.

[0178] Or,

[0179] If the target event satisfied by the current Wi-Fi usage scenario includes enabling the DBS function and enabling the co - transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario;

[0180] Or,

[0181] If the target event satisfied by the current Wi-Fi usage scenario includes enabling the earpiece, enabling the co - transmission function of cellular and Wi-Fi, and enabling the DBS function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario;

[0182] Or,

[0183] If the target events satisfied by the current Wi-Fi usage scenario include turning on the hotspot, turning on the DBS function, turning on the earpiece, and turning on the co-transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario;

[0184] Or,

[0185] If the target events satisfied by the current Wi-Fi usage scenario include turning on the hotspot, turning on the DBS function, and turning on the co-transmission function of cellular and Wi-Fi, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario;

[0186] Or,

[0187] If the target events satisfied by the current Wi-Fi usage scenario include turning on the hotspot and turning on the DBS function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the fifth SAR reduction scenario.

[0188] Or,

[0189] If the target events satisfied by the current Wi-Fi usage scenario include turning on the hotspot, turning on the DBS function, and turning on the earpiece function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the sixth SAR reduction scenario;

[0190] Or,

[0191] If the target events satisfied by the current Wi-Fi usage scenario include turning on the earpiece and turning on the DBS function, determine that the SAR reduction scenario corresponding to the current Wi-Fi usage scenario is the sixth SAR reduction scenario.

[0192] Optionally, the monitoring module is specifically configured to:

[0193] In response to the terminal device entering the power-on state, set the transmission power of Wi-Fi to the maximum power;

[0194] Based on the Framework layer, monitor the target events satisfied by the current Wi-Fi usage scenario to obtain a monitoring result.

[0195] In the embodiments of the present disclosure, first, the target events satisfied by the current wireless network Wi-Fi usage scenario are monitored to obtain a monitoring result. Then, based on the monitoring result, the specific absorption ratio (SAR) scenario for reducing electromagnetic waves corresponding to the current Wi-Fi usage scenario is determined. After that, based on the SAR reduction scenario, the power parameters corresponding to the terminal device are adjusted. Thus, by monitoring the target events of the wireless network Wi-Fi usage scenario, determining the SAR reduction scenario, and adjusting the power parameters, it can be ensured that the SAR value of the terminal device is always within a safe range in various usage scenarios, reducing the potential harm that electromagnetic radiation may cause to the human body and allowing users to use the device with confidence. Reasonably adjusting the power parameters in different scenarios can optimize the Wi-Fi network performance. For example, when making a call with a dual-band Wi-Fi connection, adjusting the power according to the characteristics of the scenario can better utilize the advantages of the 2.4G and 5G frequency bands, ensure network stability, reduce call freezes, disconnections, etc., and improve the user's network experience. Precisely adjusting the power according to the actual usage scenario can avoid unnecessary high-power operation and reduce the device power consumption. For example, reducing the power in the hotspot off scenario can reduce power consumption and extend the battery life, facilitating the continuous use of the device when the user is out and unable to charge in a timely manner.

[0196] In addition, the present disclosure also provides an electronic device, such as Figure 7 shown, which shows the structural schematic diagram of the electronic device involved in the present disclosure. Specifically:

[0197] The electronic device may include a processor 701 with one or more processing cores, a memory 702 with one or more computer-readable storage media, a power supply 703, an input unit 704, and other components. Those skilled in the art can understand that Figure 7 the structure of the electronic device shown in

[0198] does not constitute a limitation on the electronic device, and it may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements. Among them:

[0199] The memory 702 can be used to store software programs and modules. The processor 701 executes various functional applications and data processing by running the software programs and modules stored in the memory 702. The memory 702 mainly includes a program storage area and a data storage area. Among them, the program storage area can store the operating system, application programs required for at least one function (such as the sound playback function, the image playback function, etc.); the data storage area can store data created according to the use of the electronic device. In addition, the memory 702 can include high-speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. Accordingly, the memory 702 can also include a memory controller to provide the processor 701 with access to the memory 702.

[0200] The electronic device further includes a power supply 703 for powering each component. Preferably, the power supply 703 can be logically connected to the processor 701 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. The power supply 703 can also include any components such as one or more DC or AC power supplies, a recharge system, a power device debugging circuit, a power converter or inverter, and a power status indicator.

[0201] The electronic device may further include an input unit 704, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.

[0202] Although not shown, the electronic device may further include a display unit, etc., which will not be elaborated here. Specifically, in this embodiment, the processor 701 in the electronic device will load the executable files corresponding to the processes of one or more application programs into the memory 702 according to the following instructions, and the processor 701 will run the application programs stored in the memory 702, so as to implement the steps in any of the terminal device SAR reduction methods provided by the embodiments of the present disclosure.

[0203] In the embodiments of the present disclosure, first, the target events satisfied by the current wireless network Wi-Fi usage scenario are monitored to obtain a monitoring result. Then, based on the monitoring result, the specific absorption ratio (SAR) scenario for reducing electromagnetic waves corresponding to the current Wi-Fi usage scenario is determined. After that, based on the SAR reduction scenario, the power parameters of the terminal device are adjusted. Thus, by monitoring the target events of the wireless network Wi-Fi usage scenario, determining the SAR reduction scenario, and adjusting the power parameters, it can be ensured that the SAR value of the terminal device always remains within a safe range in various usage scenarios, reducing the potential harm that electromagnetic radiation may cause to the human body and allowing users to use the device with confidence. Reasonably adjusting the power parameters in different scenarios can optimize the Wi-Fi network performance. For example, when making a call with a dual-band Wi-Fi connection, adjusting the power according to the characteristics of the scenario can better utilize the advantages of the 2.4G and 5G frequency bands, ensure network stability, reduce call stuttering, disconnection, etc., and improve the user's network experience. Precisely adjusting the power according to the actual usage scenario can avoid unnecessary high-power operation and reduce the device power consumption. For example, reducing the power in the hotspot off scenario can reduce power consumption and extend the battery life, facilitating the continuous use of the device when the user is out and unable to charge in time.

[0204] For the specific implementation of each of the above operations, reference can be made to the previous embodiments and will not be elaborated here.

[0205] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions or by controlling related hardware through instructions. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0206] Therefore, the present disclosure provides a computer-readable storage medium on which a computer program is stored. The computer program can be loaded by a processor to execute the steps in any of the SAR reduction methods for terminal devices provided by the present disclosure.

[0207] For the specific implementation of each of the above operations, reference can be made to the previous embodiments and will not be elaborated here.

[0208] Among them, the computer-readable storage medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.

[0209] Since the instructions stored in the computer-readable storage medium can execute the steps in any of the SAR reduction methods for terminal devices provided by the present disclosure, the beneficial effects that can be achieved by any of the SAR reduction methods for terminal devices provided by the present disclosure can be realized. For details, reference can be made to the previous embodiments and will not be elaborated here.

[0210] The above has introduced in detail a method, apparatus, electronic device, and computer-readable storage medium for reducing SAR of a terminal device provided by the present disclosure. Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation on the present invention.

Claims

1. A method for reducing SAR of a terminal device, characterized in that: include: Monitor the target events satisfied by the current wireless network Wifi usage scenario to obtain monitoring results; Based on the monitoring result, determine the electromagnetic wave specific absorption ratio (SAR) reduction scenario corresponding to the current WiFi usage scenario; Based on the SAR reduction scenario, adjust the power parameters corresponding to the terminal equipment.

2. The method according to claim 1, characterized in that The number of the target events is one or more, and judging the electromagnetic wave specific absorption ratio (SAR) reduction scenario corresponding to the current WiFi usage scenario based on the monitoring result includes: Based on a preset mapping relationship and a target event satisfied by the current Wifi usage scenario, a SAR reduction scenario corresponding to the current Wifi usage scenario is determined, wherein different SAR reduction scenarios correspond to different power parameters. The target event includes at least one of the following: Turn on the handset; Turn on the hotspot; Enable the dual-band concurrent DBS function; or Enable the simultaneous transmission of cellular and Wi-Fi.

3. The method according to claim 2, characterized in that The target events include: turning on the handset, turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the cellular and Wifi simultaneous transmission function. The determining, based on a preset mapping relationship and a target event satisfied by the current Wifi usage scenario, a SAR reduction scenario corresponding to the current Wifi usage scenario includes: If the target event satisfied by the current Wifi usage scenario includes turning on the handset, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is a first SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include turning on the handset and turning on the hotspot, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is a first SAR reduction scenario; or, If the current Wifi usage scenario does not meet each target event, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is a second SAR reduction scenario; or, If the target event satisfied by the current Wifi usage scenario includes enabling the DBS function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is a third SAR reduction scenario, The first SAR reduction scenario, the second SAR reduction scenario and the third SAR reduction scenario are different.

4. The method according to claim 2, characterized in that: The target events include turning on the handset, turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the cellular and Wi-Fi simultaneous transmission function. The determining, based on a preset mapping relationship and a target event satisfied by the current Wifi usage scenario, a SAR reduction scenario corresponding to the current Wifi usage scenario includes: If the target event satisfied by the current Wifi usage scenario includes enabling a cellular and Wifi simultaneous transmission function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is a fourth SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include enabling the cellular and Wifi simultaneous transmission function and enabling the hotspot, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is a fourth SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include turning on the hotspot, turning on the handset, and turning on the cellular and Wifi simultaneous transmission function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is a fourth SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include turning on the handset and turning on the cellular and Wifi simultaneous transmission function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is a fourth SAR reduction scenario; or, If the target event satisfied by the current Wifi usage scenario includes turning on a hotspot, it is determined that the SAR reduction scenario corresponding to the current Wifi usage scenario is a fourth SAR reduction scenario.

5. The method according to claim 2, characterized in that: The target events include turning on the handset, turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the cellular and Wifi simultaneous transmission function. The determining, based on a preset mapping relationship and a target event satisfied by the current Wifi usage scenario, a SAR reduction scenario corresponding to the current Wifi usage scenario includes: If the target event satisfied by the current Wifi usage scenario includes enabling the DBS function and enabling the cellular and Wifi simultaneous transmission function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fifth SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include turning on the handset, turning on the cellular and Wifi simultaneous transmission function, and turning on the DBS function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fifth SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include turning on the hotspot, turning on the DBS function, turning on the handset, and turning on the cellular and Wifi simultaneous transmission function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fifth SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include turning on the hotspot, turning on the DBS function, and turning on the cellular and Wifi simultaneous transmission function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fifth SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include turning on the hotspot and turning on the DBS function, it is determined that the SAR reduction scenario corresponding to the current Wifi usage scenario is the fifth SAR reduction scenario.

6. The method according to claim 2, characterized in that The target events include turning on the handset, turning on the hotspot, turning on the dual-band concurrent DBS function, and turning on the cellular and Wifi simultaneous transmission function. The determining, based on a preset mapping relationship and a target event satisfied by the current Wifi usage scenario, a SAR reduction scenario corresponding to the current Wifi usage scenario includes: If the target events satisfied by the current Wifi usage scenario include turning on the hotspot, turning on the DBS function, and turning on the handset function, determining that the SAR reduction scenario corresponding to the current Wifi usage scenario is the sixth SAR reduction scenario; or, If the target events satisfied by the current Wifi usage scenario include turning on the handset and turning on the DBS function, it is determined that the SAR reduction scenario corresponding to the current Wifi usage scenario is the sixth SAR reduction scenario.

7. The method according to claim 1, characterized in that The monitoring of the target events satisfied by the current wireless network Wifi usage scenario to obtain the monitoring results includes: In response to the terminal device entering a power-on state, setting the transmission power of the Wifi to a maximum power; Based on the framework layer, monitor the target events satisfied by the current Wifi usage scenario to obtain monitoring results.

8. A SAR reduction device for a terminal device, characterized in that: include: The monitoring module is used to monitor the target events satisfied by the current wireless network Wifi usage scenario to obtain monitoring results; A judgment module, used to judge, based on the monitoring result, the electromagnetic wave specific absorption ratio (SAR) reduction scenario corresponding to the current WiFi usage scenario; The adjustment module is used to adjust the power parameters corresponding to the terminal equipment based on the SAR reduction scenario.

9. An electronic device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the method according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the method according to any one of claims 1 to 7 are implemented.

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