CN116169460A - Antenna system, method, terminal and storage medium for reducing SAR value - Google Patents

Abstract

Embodiments of the present invention relate to the field of wireless communication technologies, and in particular to an antenna system, method, terminal and storage medium for reducing SAR values. The system includes: multiple main antennas, sensors, and control devices arranged in multiple directions of the mobile terminal; the multiple main antennas are electrically connected to the sensors, and the sensors are connected to the control device; The multiple main antennas are all used to send and receive electromagnetic wave signals; the sensor is used to detect the respective distances between the user and the multiple main antennas, and notify the control device of the main antennas whose distance is less than a preset threshold; the control The device is used to reduce the power value of the electromagnetic wave signal of the main antenna whose distance is smaller than the preset threshold. The electromagnetic radiation of the mobile terminal during the communication process is reduced without affecting the communication performance of the mobile terminal, and at the same time, the layout of the antenna is simplified and the cost is reduced.

Description

Antenna system, method, terminal and storage medium for reducing SAR value

technical field

The embodiments of the present invention relate to the technical field of wireless communication, and in particular to an antenna system, method, terminal and storage medium for reducing SAR values.

Background technique

With the development of mobile communication technology, people use more and more mobile terminals, especially tablets and tablet computers. However, these mobile terminals often generate electromagnetic radiation during the communication process. When the mobile terminal is close to the human body and the electromagnetic radiation power is high, it will cause a certain degree of radiation damage to the human body. Therefore, in order to quantify the impact of electromagnetic radiation generated by mobile terminals on the human body, the SAR (Specific Absorption Rate) index is introduced to measure the radiation level of electromagnetic waves. Therefore, reducing electromagnetic radiation can be achieved by reducing Sar.

The inventors found that in traditional mobile terminal SAR reduction schemes, multiple antennas (≥8) are often used to connect with multiple sensors. By using the mobile terminal to approach and move away from the antenna, the SAR sensor triggers the mechanism to reduce the power to achieve the purpose of reducing SAR. ; In addition, due to the limitation of the stacking structure and radio frequency architecture in the traditional antenna solution architecture, the layout of the antenna makes the use scene and the test scene incompatible. At the same time, the antenna layout is complicated, which makes the SAR reduction power unbalanced and affects the user experience of communication performance and quality.

Contents of the invention

The purpose of the embodiment of the present invention is to provide an antenna system, method, terminal and storage medium for reducing the SAR value, so that the electromagnetic radiation of the mobile terminal during the communication process can be reduced without affecting the communication performance of the mobile terminal, and the antenna layout can be simplified at the same time ,Reduce the cost.

In order to solve the above-mentioned technical problems, the embodiment of the present invention provides an antenna system for reducing the SAR value, which is applied to a mobile terminal, and is characterized in that the system includes: multiple main antennas arranged in multiple directions of the mobile terminal Antennas, sensors, and control devices; the multiple main antennas are electrically connected to the sensors, and the sensors are connected to the control device; the multiple main antennas are used to send and receive electromagnetic wave signals; the sensors are used to detect user the respective distances from the plurality of main antennas, and notify the control device of the main antennas whose distances are less than a preset threshold; value is reduced.

The embodiment of the present invention also provides a method for reducing the SAR value, which is applied to a mobile terminal. The method includes: transmitting and receiving electromagnetic wave signals through multiple main antennas arranged in multiple directions of the mobile terminal; real-time detection The respective distances between the user and the plurality of main antennas; after detecting the main antennas satisfying the preset conditions, reducing the power value of the electromagnetic wave signal of the main antennas satisfying the preset conditions; wherein the preset conditions include : The distance between the user and the main antenna is less than the preset threshold.

An embodiment of the present invention also provides a terminal, including: at least one processor; and a memory connected to the at least one processor in communication; wherein, the memory stores a program executable by the at least one processor Instructions, the instructions are executed by the at least one processor, so that the at least one processor can execute the method for reducing the SAR value as described above.

Embodiments of the present invention also provide a computer-readable storage medium storing a computer program, and implementing the above-mentioned method for reducing the SAR value when the computer program is executed by a processor.

Compared with related technologies, the embodiment of the present invention has multiple main antennas, sensors, and control devices arranged in multiple directions of the mobile terminal, the multiple main antennas are electrically connected to the sensors, and the sensors are connected to the control device; Multiple main antennas are preset with respective distances, and the multiple main antennas are connected to a sensor, and the sensor is connected to the control device. Therefore, when the user approaches the mobile terminal, the sensor notifies the control of the main antenna whose distance is less than the preset threshold device, the control device reduces the power value of the electromagnetic wave signal of the main antenna whose distance is less than the preset threshold, and the reduction of the power value, that is, the SAR value is also reduced. That is, the present application reduces the electromagnetic radiation of the mobile terminal during the communication process without affecting the communication performance of the mobile terminal, and at the same time simplifies the antenna layout and reduces the cost.

In addition, the multiple main antennas include: a first LTE antenna, a second LTE antenna, a first 5G antenna, a second 5G antenna, and a network location antenna; the first LTE antenna is arranged at the bottom of the mobile terminal, and The USB ports of the mobile terminal are juxtaposed; the second LTE antenna is arranged on the left side of the top of the mobile terminal; the first 5G antenna is arranged on the right side of the second LTE antenna, and the second 5G antenna is arranged on the left side of the top of the mobile terminal; The layout is on the right side of the first 5G antenna; the network location antenna is on the left side of the mobile terminal, and the distance from the second LTE antenna is less than a preset threshold. Because a sensor and multiple antennas are rationally arranged in the mobile terminal, compared with the layout of multiple antennas and multiple sensors in the related art, the overall layout simplifies the antenna layout and reduces the cost.

In addition, the system further includes: a third 5G antenna and a fourth 5G antenna, the third 5G antenna is arranged on the left side of the mobile terminal, on the top of the first LTE antenna, and the fourth 5G antenna The layout is on the left side of the mobile terminal, in the middle of the first LTE antenna and the third 5G antenna; the coverage frequency bands of the third 5G antenna and the fourth 5G antenna include the multiple The frequency bands of the main antennas are all used to combine the electromagnetic wave signals of at least two main antennas. It is beneficial to assist the main antenna to complete application scenarios and test scenarios.

In addition, the frequency bands of the multiple main antennas do not affect each other.

In addition, the multiple main antennas include: a first LTE antenna, a second LTE antenna, a first 5G antenna, a second 5G antenna, and a network location antenna; the first LTE antenna is arranged at the bottom of the mobile terminal, and the The USB interface of the mobile terminal is juxtaposed; the second LTE antenna is arranged on the left side of the top of the mobile terminal; the first 5G antenna is arranged on the right side of the second LTE antenna, and the second 5G antenna is arranged on the left side of the mobile terminal. The right side of the first 5G antenna; the network location antenna is arranged on the left side of the mobile terminal, and the distance from the second LTE antenna is less than a preset threshold. The layout of the antenna in the mobile terminal is simplified through the reasonable layout of the antenna, thereby reducing the cost.

In addition, the mobile terminal further includes: a third 5G antenna and a fourth 5G antenna, the third 5G antenna is arranged on the left side of the mobile terminal, and on the top of the first LTE antenna, the fourth 5G antenna The layout is on the left side of the mobile terminal, and in the middle of the first LTE antenna and the third 5G antenna; the coverage frequency bands of the third 5G antenna and the fourth 5G antenna include the multiple main antennas frequency band; the method further includes: combining the electromagnetic wave signals of at least two main antennas through the third 5G antenna and/or the fourth 5G antenna. It is beneficial to assist the main antenna to complete application scenarios and test scenarios.

In addition, there is more than one main antenna meeting the preset condition; different combinations of the main antenna meeting the preset condition correspond to different test scenarios and user scenarios respectively.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute a limitation to the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the drawings are not limited to scale.

Fig. 1 is a structural diagram 1 of an antenna system for reducing SAR value provided according to an embodiment of the present invention;

FIG. 2 is a second structural diagram of an antenna system for reducing the SAR value provided according to an embodiment of the present invention;

FIG. 3 is a logic scene diagram in an antenna system for reducing SAR values according to an embodiment of the present invention;

FIG. 4 is a test scene diagram in an antenna system for reducing the SAR value provided according to an embodiment of the present invention;

5 is a schematic flow chart of a method for reducing SAR values according to an embodiment of the present invention;

Fig. 6 is a structural block diagram of a terminal according to a method for reducing a SAR value provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized. The division of the following embodiments is for the convenience of description, and should not constitute any limitation to the specific implementation of the present invention, and the various embodiments can be combined and referred to each other on the premise of no contradiction.

An embodiment of the present invention provides an antenna system for reducing the SAR value, which is applied to a mobile terminal. The mobile terminal can be any mobile electronic device. The mobile terminal in the present invention takes a 5G tablet as an example. The system includes: Multiple main antennas, sensor 1, and control device 2 in multiple directions of the terminal; multiple main antennas are electrically connected to the sensor 1, and the sensor 1 is connected to the control device 2; multiple main antennas are used to send and receive electromagnetic wave signals The sensor 1 is used to detect the respective distances between the user and multiple main antennas, and notifies the control device 2 of the main antenna whose distance is less than the preset threshold; The power value is reduced. The application reduces the electromagnetic radiation of the mobile terminal during the communication process without affecting the communication performance of the mobile terminal, and at the same time simplifies the antenna layout and reduces the cost.

As shown in Figure 1, in an example, multiple main antennas specifically include: a first LTE antenna 3, a second LTE antenna 4, a first 5G antenna 5, a second 5G antenna 6, and a network location antenna 7; Antenna 3 is arranged at the bottom of the mobile terminal, parallel to the USB interface of the mobile terminal; the second LTE antenna 4 is arranged on the left side of the top of the mobile terminal; the first 5G antenna 5 is arranged on the right side of the second LTE antenna, and the second 5G antenna is arranged on the right side of the second LTE antenna. The antenna 6 is arranged on the right side of the first 5G antenna 5; the network location antenna 7 is arranged on the left side of the mobile terminal, and the distance from the second LTE antenna 4 is less than the preset threshold; the first LTE antenna 3 passes through the main channel 1 and the reference Channel 5 is connected to sensor 2, second LTE antenna 4 is connected to sensor 2 through main channel 3 and reference channel 8, second 5G antenna 5 is connected to sensor through main channel 4 and reference channel 6, network location antenna 7 is connected to main channel 2 The sensor is connected with the reference channel 7, and the layout of the antenna in the mobile terminal is simplified through a reasonable layout of the antenna, thereby reducing the cost.

In one example, the control device 2 is a software tool for triggering scenes, which is used to simulate scene trigger mechanisms such as the user's hand-held state, call state, and free state. Pain, thereby reducing the SAR value, can meet the market regulations FCC and CE certification requirements.

In one example, the control device 2 can realize all test scenarios and user scenarios, as shown in Figure 2, in which only 5 DIS scenarios are taken as an example, the scene logic table is shown in Figure 3, and the control device 2 points to DSI1 In the scenario where sensor 1 does not trigger, simulate the user or object not approaching the tablet, DSI1 calls normal RF parameters, and the antenna is normal OTA data test scenario. The control device 2 points to the DSI 2, and the sensor 1 is the trigger scene. When the user approaches the edge 4 of the tablet from below or holds the tablet vertically, the distance from the sensor 1 to the user and the tablet through the first LTE antenna 3 circuit is less than the preset threshold, and it is determined by the preset threshold Triggered, DSI2 uses the control device 2 to call the power-reduced radio frequency parameters according to the transmission frequency band of the first LTE antenna 3 to achieve the purpose of reducing SAR; the control device 2 points to DSI3, and the sensor 1 is the trigger scene. When the user approaches the edge3 from the right side or holds the tablet vertically The sensor 1 detects that the distance between the user and the tablet is less than a preset threshold through the first 5G antenna 5 circuit, and the trigger is judged by the preset threshold, and the DSI 3 uses the control device 2 to call the power-down radio frequency parameter according to the transmission frequency band of the first 5G antenna 5 to achieve a reduction in power. SAR purpose. The control device 2 points to the DSI4, and the sensor 1 is the trigger scene. When the user approaches the tablet from the TOP or Bottorn surface, or holds the tablet horizontally, the sensor 1 is triggered simultaneously by the first 5G antenna 55 and the first LTE antenna 3, and the circuit detects that the user The distance from the tablet is less than the preset threshold, and the trigger is judged by the preset threshold. The DSI4 uses the control device 2 to call the power-down radio frequency parameters according to the transmission frequency bands of the first 5G antenna 5 and the first LTE antenna 3, so as to achieve the purpose of reducing SAR.

The control device 2 points to the DSI 5, and the sensor 1 is a trigger scene. When the user approaches the network position antenna 7 of the tablet or the second LTE antenna 4 from the TOP surface or the Bottorn surface, other antenna circuits detect that the distance between the user and the tablet is less than a preset threshold, Regardless of whether the preset threshold is reached to trigger or not to trigger, the control device 2 judges it as DIS5; in addition, when there is a fault in one of the 4 groups of main channels and 4 groups of reference channels in the sensor 1 or when the chip of the sensor 1 fails, the control device 2 judges it as DIS5. DIS5.

In one example, the system further includes: a third 5G antenna 8 and a fourth 5G antenna 9, the third 5G antenna is arranged on the left side of the mobile terminal, on the top of the first LTE antenna, the fourth 5G antenna is arranged 9 On the left side of the mobile terminal, in the middle of the first LTE antenna 3 and the third 5G antenna 8; the coverage frequency bands of the third 5G antenna 8 and the fourth 5G antenna 9 both include the frequency bands of the multiple main antennas, Both are used to combine electromagnetic wave signals of at least two main antennas. It is beneficial for the auxiliary main antenna to complete application scenarios and test scenarios, and the frequency bands of the multiple main antennas do not affect each other.

In one example, the frequency bands supported by the first LTE antenna are 2G GSM850/900/DCS/PCS, 3G WCDMAB1/2/4/5/8, 4GLTEB1/2/3/4/5/7/8/12/17 /20/25/28/30/38/66/38/40/4, 5G NR n1/3/7/8/20/25/28/30/38/40/41/42; 2nd LTE Antenna 4 Supported frequency bands are 2G GSM850/900/DCS/PCS, 3GWCDMA B1/2/4/5/8, 4GLTEB1/2/3/4/5/7/8/12/17/20/25/28/30/ 38/66/38/40/4, 5G NRn1/3/7/8/20/25/28/30/38/40/41/42; the working frequency bands of the first 5G antenna 5 are frequency bands n77, n78, n79 , the first 5G antenna and the second 5G antenna 6 adopt the IFA antenna design, and the purpose of decoupling can be achieved through the dual-antenna matching circuit joint adjustment and frequency error mode. The second 5G antenna 6 supports the frequency bands of 4GLTEB1/2/3/4/5 /7/8/12/17/20/25/28/30/38/66/38/40/4, 5GNR n1/3/7/8/20/25/28/30/38/40/41/ 42;

The third 5G antenna 8 has antenna signal and ground feed. The third 5G antenna 8 is used for antenna LTE and NR multi-band switching to ensure antenna radiation bandwidth; the frequency band supported by the third 5G antenna 8 is 4G LTE B1/2/3/ 4/7/25/28/30/32/38/66/38/40/41, 5G NR n1/3/7/25/30/32/38/40/41/42, and the third 5G antenna support Antenna DRx usage under ENDC combination.

The fourth 5G antenna 9 is located in the bottom area of the tablet, supports antenna DRx, has antenna signal and ground feed; the fourth 5G antenna can cover the frequency band n77/n78/n79, and supports ENDC combination, that is, the mutual connection of 4G and 5G dual connection technologies. Compatible and support many CA combinations, that is, 4G and 5G carrier aggregation, increase signal bandwidth, thereby increasing transmission bit rate. The 5G frequency band n77/n78/n79 supports MIMO technology, and multiple antennas are used for synchronous transmission and reception, so the transmission bit rate is increased.

In one example, the inside of the control device 2 includes a plurality of scenes, as shown in FIG. 4 , including the first scene unit 400, the second scene unit 410, the third scene unit 420, the first test scene unit 401, The second test scene unit 402, the third test scene unit 403, and the fourth test scene unit 404 are used to switch 5 DIS scene functional verifications and the data collection threshold threshold setting of the sensor 1, etc.; the first scene unit 100 functions to 5 DSI scenes are selected and locked to verify whether the functional software status of each DSI meets the requirements; the second scene unit 410 simulates the damaged state of the 8 channels of the sensor 1 and restores the normal state, and the functional purpose verifies that the single channel of the 8 channels of the sensor 1 Whether the DIS pointing to the SAR reduction scene verification of one or more circuit failure scenarios is achieved; the third scene unit 420 simulates the open and closed state of the sensor 1, and is used to verify the soft failure state of the sensor 85 chip, and whether the DIS scene meets the SAR reduction requirement. scene requirements;

The function of the first test scene unit 401 is used for data collection of the difference value of capacitance change between the main path and the reference path of the sensor 1, and the function of the second test scene unit 402 is to set the SAR reduction scene according to the data collection of the capacitance difference value of the first test scene unit 401 The differential data threshold can be manually set for data verification; the function of the third test scene unit 403 is used for the respective distances between the user on the path of the sensor 1 and multiple main antennas, and the function of the fourth test scene unit 404 is for the self-calibration function of the sensor 1, When applied to the actual scene test, the DIS scene pointing and the data test abnormality of the first test scene unit 401 and the third test scene unit 403 are recalibrated.

Compared with related technologies, this implementation mode has multiple main antennas, sensors, and control devices arranged in multiple directions of the mobile terminal, and the multiple main antennas are electrically connected to the sensors, and the sensors are connected to the control device; The root main antennas have their respective distances preset, and multiple main antennas are connected to a sensor, and the sensor is connected to the control device, so when the user approaches the mobile terminal, the sensor notifies the control device of the main antenna whose distance is less than the preset threshold The control device reduces the power value of the electromagnetic wave signal of the main antenna whose distance is smaller than the preset threshold, and the reduction of the power value, that is, the SAR value is also reduced. Since a sensor and multiple antennas are rationally arranged in the mobile terminal, compared with the layout of multiple antennas and multiple sensors in the related art, the overall layout simplifies the antenna layout and thus reduces the cost. That is, the present application reduces the electromagnetic radiation of the mobile terminal during the communication process without affecting the communication performance of the mobile terminal, and at the same time simplifies the antenna layout and reduces the cost.

One embodiment of the present invention provides a method for reducing the SAR value, which is applied to a mobile terminal. The method includes: transmitting and receiving electromagnetic wave signals through multiple main antennas arranged in multiple directions of the mobile terminal; real-time detection The respective distances between the user and the plurality of main antennas; after detecting the main antennas satisfying the preset conditions, reducing the power value of the electromagnetic wave signal of the main antennas satisfying the preset conditions; wherein the preset conditions include : The distance between the user and the main antenna is less than the preset threshold.

A method for reducing the SAR value in this embodiment is shown in Figure 5, and specifically includes the following steps:

In step 501, multiple main antennas arranged in multiple directions of the mobile terminal transmit and receive electromagnetic wave signals.

Step 502, detecting the distances between the user and the multiple main antennas in real time.

Step 503, reducing the power value of the electromagnetic wave signal of the main antenna meeting the preset condition; wherein the preset condition includes: the distance between the user and the main antenna is smaller than a preset threshold.

In one example, multiple main antennas include: a first LTE antenna 3, a second LTE antenna 4, a first 5G antenna 5, a second 5G antenna 6, and a network location antenna 7; the first LTE antenna 3 is arranged at the bottom of the mobile terminal , juxtaposed with the USB interface of the mobile terminal; the second LTE antenna 4 is arranged on the left side of the top of the mobile terminal; the first 5G antenna 5 is arranged on the right side of the second LTE antenna 4, and the second 5G antenna 6 is arranged on the first 5G5 antenna Right side: the network location antenna 7 is arranged on the left side of the mobile terminal, and the distance from the second LTE antenna 4 is less than a preset threshold. The layout of the antenna in the mobile terminal is simplified through the reasonable layout of the antenna, thereby reducing the cost.

In an example, the mobile terminal further includes: a third 5G antenna 8 and a fourth 5G antenna 9, the third 5G antenna 8 is arranged on the left side of the mobile terminal, and is on the top of the first LTE antenna 3, and the fourth 5G antenna 9 is arranged On the left side of the mobile terminal, and in the middle of the first LTE antenna 3 and the third 5G antenna 9; the coverage frequency bands of the third 5G antenna 8 and the fourth 5G antenna 9 both include frequency bands of multiple main antennas; the method also includes: The electromagnetic wave signals of at least two main antennas are combined through the third 5G antenna and/or the fourth 5G antenna. It is beneficial to assist the main antenna to complete application scenarios and test scenarios.

Among them, the frequency bands supported by the first LTE antenna are 2G GSM850/900/DCS/PCS, 3G WCDMA B1/2/4/5/8, 4GLTEB1/2/3/4/5/7/8/12/17/20 /25/28/30/38/66/38/40/4, 5G NR n1/3/7/8/20/25/28/30/38/40/41/42; frequency bands supported by the second LTE antenna For 2G GSM850/900/DCS/PCS, 3G WCDMA B1/2/4/5/8, 4GLTEB1/2/3/4/5/7/8/12/17/20/25/28/30/38/ 66/38/40/4, 5G NR n1/3/7/8/20/25/28/30/38/40/41/42; the working frequency bands of the first 5G antenna are frequency bands n77, n78, n79, the first The first 5G antenna and the second 5G antenna 32 adopt the IFA antenna design, and the purpose of decoupling can be achieved through the dual-antenna matching circuit joint adjustment and frequency error mode. The frequency bands supported by the second 5G antenna are 4GLTEB1/2/3/4/5/7/ 8/12/17/20/25/28/30/38/66/38/40/4, 5G NR n1/3/7/8/20/25/28/30/38/40/41/42;

The third 5G antenna 8 has antenna signal and ground feed. The third 5G antenna 8 is used for antenna LTE and NR multi-band switching to ensure antenna radiation bandwidth; the frequency band supported by the third 5G antenna 8 is 4G LTE B1/2/3/ 4/7/25/28/30/32/38/66/38/40/41, 5G NR n1/3/7/25/30/32/38/40/41/42, and the third 5G antenna 8 Support the use of antenna DRx under ENDC combination.

The fourth 5G antenna 9 is located in the bottom area of the tablet, supports antenna DRx, has antenna signal and ground feed; the fourth 5G antenna 9 can cover frequency bands n77/n78/n79, and supports ENDC combination, that is, 4G and 5G dual connection technology Compatible with each other, support many CA combinations, that is, 4G and 5G carrier aggregation, increase signal bandwidth, thereby increasing transmission bit rate. The 5G frequency band n77/n78/n79 supports MIMO technology, and multiple antennas are used for synchronous transmission and reception, so the transmission bit rate is increased.

In an example, there is more than one main antenna meeting the preset condition; different combinations of the main antenna meeting the preset condition correspond to different test scenarios and user scenarios respectively. The test scenarios and user scenarios are the same as the scenarios in the above embodiments, and will not be repeated here.

Compared with the prior art, the embodiments of the present invention lay out multiple main antennas, sensors, and control devices in multiple directions of the mobile terminal, the multiple main antennas are electrically connected to the sensors, and the sensors are connected to the control device; Since multiple main antennas have preset respective distances, and multiple main antennas are connected to a sensor, and the sensor is connected to the control device, therefore, when the user approaches the mobile terminal, the sensor notifies the main antenna whose distance is smaller than the preset threshold A control device, the control device reduces the power value of the electromagnetic wave signal of the main antenna whose distance is less than the preset threshold, and the reduction of the power value, that is, the SAR value is also reduced. Since a sensor and multiple antennas are rationally arranged in the mobile terminal, compared with the layout of multiple antennas and multiple sensors in the related art, the overall layout simplifies the antenna layout and thus reduces the cost. That is, the present application reduces the electromagnetic radiation of the mobile terminal during the communication process without affecting the communication performance of the mobile terminal, and at the same time simplifies the antenna layout and reduces the cost.

An embodiment of the present invention relates to a terminal, as shown in FIG. 6 , including at least one processor 601; and a memory 602 communicatively connected to the at least one processor 601; Instructions executed by the at least one processor 601, the instructions are executed by the at least one processor 601, so that the at least one processor 601 can execute the method for reducing the SAR value as described above.

Wherein, the memory 602 and the processor 601 are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors and various circuits of the memory. The bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein. The bus interface provides an interface between the bus and the transceivers. A transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing means for communicating with various other devices over a transmission medium. The data processed by the processor is transmitted on the wireless medium through the antenna, further, the antenna also receives the data and transmits the data to the processor.

Processor 601 is responsible for managing the bus and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, memory can be used to store data that the processor uses when performing operations.

An embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The above method embodiments are implemented when the computer program is executed by the processor.

That is, those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, the program is stored in a storage medium, and includes several instructions to make a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes.

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific examples for realizing the present invention, and in practical applications, various changes can be made to it in form and details without departing from the spirit and spirit of the present invention. scope.

Claims (10)

1. An antenna system for reducing SAR values for a mobile terminal, comprising: a plurality of main antennas, sensors and a control device which are distributed in a plurality of directions of the mobile terminal; the plurality of main antennas are electrically connected with the sensor, and the sensor is connected with the control device;

the main antennas are used for receiving and transmitting electromagnetic wave signals;

the sensor is used for detecting the respective distances between a user and the plurality of main antennas and notifying the main antennas with the distances smaller than a preset threshold value to the control device;

the control device is used for reducing the power value of the electromagnetic wave signal of the main antenna with the distance smaller than a preset threshold value.

2. The SAR value reduced antenna system of claim 1, wherein said plurality of main antennas comprises: the antenna comprises a first LTE antenna, a second LTE antenna, a first 5G antenna, a second 5G antenna and a network position antenna;

the first LTE antenna is arranged at the bottom of the mobile terminal and is parallel to the USB interface of the mobile terminal;

the second LTE antenna is arranged on the left side of the top of the mobile terminal;

the first 5G antenna is arranged on the right side of the second LTE antenna, and the second 5G antenna is arranged on the right side of the first 5G antenna;

and the network position antenna is distributed on the left side of the mobile terminal, and the distance between the network position antenna and the second LTE antenna is smaller than a preset threshold.

3. The SAR value reduced antenna system of claim 2, further comprising: a third 5G antenna and a fourth 5G antenna, the third 5G antenna being disposed on the left side of the mobile terminal and on top of the first LTE antenna, the fourth 5G antenna being disposed on the left side of the mobile terminal and in the middle of the first LTE antenna and the third 5G antenna;

and the coverage frequency bands of the third 5G antenna and the fourth 5G antenna comprise the frequency bands of the plurality of main antennas and are used for combining electromagnetic wave signals of at least two main antennas.

4. The SAR value reduced antenna system of claim 3, wherein the frequency bands of the plurality of primary antennas do not affect each other.

5. A method for reducing SAR values, applied to a mobile terminal, comprising:

transmitting and receiving electromagnetic wave signals through a plurality of main antennas distributed in a plurality of directions of the mobile terminal;

detecting respective distances between a user and the plurality of main antennas in real time;

after detecting the main antenna meeting the preset condition, reducing the power value of the electromagnetic wave signal of the main antenna meeting the preset condition;

wherein, the preset conditions include: the distance between the user and the main antenna is smaller than a preset threshold value.

6. The method of reducing SAR values according to claim 5, wherein said plurality of main antennas comprises: the antenna comprises a first LTE antenna, a second LTE antenna, a first 5G antenna, a second 5G antenna and a network position antenna;

the first LTE antenna is arranged at the bottom of the mobile terminal and is parallel to the USB interface of the mobile terminal;

the second LTE antenna is arranged on the left side of the top of the mobile terminal;

the first 5G antenna is arranged on the right side of the second LTE antenna, and the second 5G antenna is arranged on the right side of the first 5G antenna;

and the network position antenna is distributed on the left side of the mobile terminal, and the distance between the network position antenna and the second LTE antenna is smaller than a preset threshold.

7. The method for reducing SAR values according to claim 6, wherein said mobile terminal further comprises: a third 5G antenna and a fourth 5G antenna, the third 5G antenna being disposed on the left side of the mobile terminal and on top of the first LTE antenna, the fourth 5G antenna being disposed on the left side of the mobile terminal and in the middle of the first LTE antenna and the third 5G antenna; the coverage frequency bands of the third 5G antenna and the fourth 5G antenna comprise the frequency bands of the plurality of main antennas; the method further comprises the steps of:

and combining electromagnetic wave signals of at least two main antennas through the third 5G antenna and/or the fourth 5G antenna.

8. The method for reducing SAR values according to any one of claims 5 to 7, wherein said main antenna satisfying a predetermined condition is more than one;

and different combinations of the main antennas meeting the preset conditions correspond to different test scenes and user scenes respectively.

9. A terminal, comprising:

at least one processor; the method comprises the steps of,

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of reducing SAR values according to any one of claims 5 to 8.

10. A computer readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the method of reducing SAR values according to any of claims 5 to 8.

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