CN112770378A

CN112770378A - Power control method, terminal and computer readable storage medium

Info

Publication number: CN112770378A
Application number: CN202011524559.6A
Authority: CN
Inventors: 张立振
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-05-07

Abstract

The invention discloses a power control method, a terminal and a computer readable storage medium, wherein the method comprises the steps of obtaining the position relation between a user and the terminal; judging at least one target antenna with the largest influence on the user radiation according to the position relation; when the terminal communicates, the radio frequency power intensity of the target antenna is smaller than the radio frequency power intensities of other antennas, the problem that the communication quality is obviously reduced when the electromagnetic wave energy specific absorption rate is controlled is solved, and the effect of reducing the reduction degree of the communication quality when the electromagnetic wave energy specific absorption rate is reduced is realized.

Description

Power control method, terminal and computer readable storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a power control method, a terminal, and a computer-readable storage medium.

Background

In the prior art, the radiation condition of the terminal to the human body can be characterized by the value of Specific Absorption Rate (SAR) of electromagnetic wave energy. When the specific absorption rate of the electromagnetic wave energy of the terminal is higher, the higher the radiation damage to the human body is represented.

At present, the 5G and wifi6 technologies are used in terminals such as mobile phones, and the radio frequency transmission power of antennas using the new technologies needs to be increased. However, on the basis of increasing the radio frequency transmission power, the radiation damage to the human body may also increase. In order to ensure that the damage degree of the terminal to human bodies is within an allowable range, corresponding standards are set for the specific absorption rate of the electromagnetic wave energy at home and abroad, and the specific absorption rate of the electromagnetic wave energy needs to be considered to meet the standards when the terminal is designed and manufactured. In the prior art, the specific absorption rate of electromagnetic wave energy meets the standard by simply reducing the radio frequency power intensity of an antenna, but the mode can cause obvious reduction of communication quality.

Disclosure of Invention

The present invention provides a power control method, a terminal and a computer-readable storage medium, for solving the technical problem of significant decrease in communication quality when the specific absorption rate of electromagnetic wave energy is reduced in the prior art.

In order to solve the above technical problem, the present invention provides a power control method, where the power control method is applied to a terminal, the terminal includes at least two antennas disposed at different positions, and the power control method includes:

acquiring a position relation between a user and a terminal;

judging at least one target antenna with the largest influence on the user radiation according to the position relation;

and when the terminal is in communication, at least two antennas in the antennas on the terminal adopt different radio frequency power strengths, wherein the radio frequency power strength of the target antenna is smaller than the radio frequency power strengths of other antennas.

Optionally, when the terminal performs communication, the enabling at least two of the antennas on the terminal to use different radio frequency power strengths includes any one of:

the radio frequency power intensity of other antennas is unchanged, the radio frequency power intensity of the target antenna is reduced, and the electromagnetic wave energy ratio absorption rate value of the terminal meets a set standard;

and simultaneously reducing the radio frequency power intensity of the target antenna and other antennas, so that the specific absorption rate value of the electromagnetic wave energy of the terminal meets a set standard, wherein the radio frequency power intensity is reduced to a greater extent by the target antenna.

Optionally, the obtaining the position relationship between the user and the terminal includes:

acquiring the proximity degree of the user and each antenna;

the step of judging the target antenna with the largest influence on the radiation of the user according to the position relation comprises the following steps:

at least one antenna closest to the user is the target antenna.

Optionally, the terminal includes an upper half area and a lower half area, the first antenna of the terminal is disposed in the lower half area, and the second antenna is disposed in the upper half area; the terminal comprises at least one first distance sensor closer to the first antenna and at least one second distance sensor closer to the second antenna;

the obtaining the proximity of the user to each antenna comprises:

acquiring parameters of the first distance sensor and the second distance sensor, and acquiring the proximity degree of the user and each antenna according to the first distance sensor and the second distance sensor

Optionally, the first and second distance sensors comprise capacitive proximity sensors.

judging whether the user answers the message through a receiver of the terminal;

and when the user listens to a message through a receiver of the terminal, at least one antenna farthest away from the receiver is used as the target antenna.

Optionally, the power control method further includes:

and if the distance between the user and the terminal is detected to be increased, the radio frequency power intensity of at least one antenna is increased on the premise of ensuring that the energy ratio absorption rate value of the electromagnetic wave meets the set standard.

Optionally, before the enabling at least two of the antennas on the terminal to use different radio frequency power strengths, the method further includes:

judging whether the electromagnetic wave energy ratio absorption rate value of the terminal meets a set standard or not;

and if the electromagnetic wave energy ratio absorption rate value of the terminal does not meet the set standard, continuing to execute the subsequent steps, otherwise, not executing the subsequent steps.

Furthermore, the invention also provides a terminal, which comprises at least two antennas, a processor, a memory and a communication bus, wherein the antennas, the processor, the memory and the communication bus are arranged at different positions;

the communication bus is used for realizing connection communication between the processor and the memory;

the processor is configured to execute one or more programs stored in the memory to implement the steps of the power control method as described above.

Further, the present invention also provides a computer readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps of the power control method as described above.

Advantageous effects

The invention provides a power control method, a terminal and a computer readable storage medium, aiming at the defect that the communication quality is obviously reduced when the electromagnetic wave energy specific absorption rate is controlled in the prior art, the position relation between a user and the terminal is obtained; judging at least one target antenna with the largest influence on the user radiation according to the position relation; when the terminal communicates, at least two antennas in the antennas on the terminal adopt different radio frequency power intensities, and the radio frequency power intensity of the target antenna is controlled to be smaller than the radio frequency power intensities of other antennas, so that the problem that the communication quality is obviously reduced when the electromagnetic wave energy specific absorption rate is controlled is solved, and the effect of reducing the reduction degree of the communication quality when the electromagnetic wave energy specific absorption rate is reduced is realized.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic diagram of a hardware structure of an optional mobile terminal for implementing various embodiments of the present invention.

FIG. 2 is a diagram of a wireless communication system for the mobile terminal shown in FIG. 1;

fig. 3 is a basic flowchart of a power control method according to a first embodiment of the present invention;

fig. 4 is a schematic diagram of an antenna configuration of a mobile terminal according to a second embodiment of the present invention;

FIG. 5 is a detailed flowchart of a power control method according to a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a terminal according to a third embodiment of the present invention.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.

Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.

The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.

Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.

First embodiment

Fig. 3 is a basic flowchart of a power control method provided in this embodiment, where the power control method includes:

s301, acquiring a position relation between a user and a terminal;

in this embodiment, determining the position relationship between the user and the terminal includes, but is not limited to, determining the distance between any part of the user and each part of the terminal, the posture of the terminal relative to the user, and the like.

S302, judging at least one target antenna with the largest influence on user radiation according to the position relation;

it will be appreciated that the antenna which is generally closest to the user has the greatest effect on the radiation from the user.

And S303, when the terminal carries out communication, at least two antennas in the antennas on the terminal adopt different radio frequency power strengths, wherein the radio frequency power strength of the target antenna is smaller than the radio frequency power strengths of other antennas.

It can be understood that, since the target antenna has the greatest radiation effect on the user, the reduction of the radio frequency power strength of the target antenna can have a more significant effect on reducing the electromagnetic wave energy specific absorption rate of the terminal.

In some embodiments, when the terminal is in communication, the causing at least two of the antennas on the terminal to adopt different radio frequency power strengths includes any one of:

the radio frequency power intensity of other antennas is unchanged, the radio frequency power intensity of the target antenna is reduced, and the electromagnetic wave energy ratio absorption rate value of the terminal meets the set standard;

and simultaneously, the radio frequency power intensity of the target antenna and other antennas is reduced, so that the electromagnetic wave energy ratio absorption rate value of the terminal meets the set standard, wherein the radio frequency power intensity of the target antenna is reduced to a greater extent than that of other antennas.

It can be understood that, for the terminal, the antenna in the terminal is usually preset with the radio frequency power strength, and the preset radio frequency power strength of the antenna in the terminal can usually ensure that the specific absorption rate of the electromagnetic wave energy of the terminal meets the standard under the general conditions. In these cases, the specific absorption rate of electromagnetic wave energy may be kept within a range conforming to the standard by reducing the intensity of radio frequency power of the antenna, because the specific absorption rate of electromagnetic wave energy of the terminal may exceed the standard when the distance between the user and the terminal is relatively close, for example, when the user is making and receiving calls and the terminal is usually close to the head of the user.

For the adjustment of the rf power strength of the antenna, the two methods can be selected according to the requirement. For example, in an example, the specific absorption rate of the electromagnetic wave energy of the terminal does not exceed the standard much, and only the rf power strength of the antenna needs to be reduced slightly, and in this case, the rf power strength of antennas other than the target antenna can be selected to be kept unchanged, and only the rf power strength of the target antenna is reduced. In another example, the specific absorption rate of the electromagnetic wave energy of the terminal is higher than the standard, and the radio frequency power intensity of all the antennas can be reduced to a certain extent, but on the basis, the radio frequency power intensity of the target antenna is reduced to a greater extent than that of other antennas.

In some embodiments, acquiring the location relationship between the user and the terminal includes:

acquiring the proximity degree of a user and each antenna;

at least one antenna closest to the user is the target antenna.

It will be appreciated that in some cases, the closer to the user the antenna radiates more strongly to the user, assuming that the rf power strength of the antenna is the same. Therefore, in these cases, the antenna closest to the user is set as the target antenna, and the electromagnetic wave energy specific absorption rate can be effectively reduced.

It should be noted that, the obtaining of the proximity of the user to each antenna includes, but is not limited to, obtaining a distance value between the user and each antenna and obtaining a related parameter between the user and each antenna that can reflect the distance. For example, the distance of the user can be detected by a sensor capable of detecting the distance, but in practical applications, the sensor directly collects parameters capable of reflecting the distance instead of the distance value. It can be understood that the distance rules between the parameters collected by the sensor and the reflected distance rules are known, so that in some implementation processes, the parameters can be directly compared, and the distance degree between the user and each antenna can be judged; of course, in other implementations, the parameters collected by the sensors may be converted into a representation of the distance values, and the comparison may be performed via the distance values.

In some embodiments, the terminal includes an upper half region and a lower half region, the first antenna of the terminal being disposed in the lower half region and the second antenna being disposed in the upper half region. It should be noted that the upper half area and the lower half area of the present embodiment are for the general display direction of the terminal; as shown in fig. XX, for example, a mobile terminal is provided with a first antenna in the upper half area and a second antenna in the lower half area. The first antenna and the second antenna in this embodiment may be one or more antennas, respectively. Meanwhile, the terminal further comprises at least one first distance sensor closer to the first antenna and at least one second distance sensor closer to the second antenna. In these embodiments, obtaining the proximity of the user to each antenna comprises: and acquiring parameters of the first distance sensor and the second distance sensor, and acquiring the proximity degree of the user and each antenna according to the first distance sensor and the second distance sensor.

It should be noted that the closer reference in this embodiment means closer relative to other antennas; for example, the first distance sensor is located at a distance from the first antenna that is less than the distance from the second antenna, and the second distance sensor is located at a distance from the second antenna that is less than the distance from the first antenna. Therefore, the parameters acquired by the first distance sensor and the second distance sensor in this embodiment are not the exact distance between the user and each antenna, but the first distance sensor is closer to the first antenna and the second distance sensor is closer to the second antenna, so that the proximity of the user to each antenna can be reflected.

The first distance sensor and/or the second distance sensor may include a plurality of first distance sensors, for example, the plurality of first distance sensors are all disposed on the upper half area of the terminal, a plurality of sets of parameters or a plurality of distance values may be obtained by the first distance sensors, an average value or a median of the results may be selected to reflect the proximity of the user to the first antenna, or a final result reflecting the proximity of the user to the first antenna may be obtained based on the results by other calculation methods.

In another embodiment, the terminal comprises a plurality of antennas, and a distance sensor is respectively arranged beside each antenna, and the distance sensors are arranged next to the corresponding antennas. That is, in such an embodiment, the proximity to the user can be obtained for each antenna, so that the rf power strength of each antenna can be adjusted more finely.

In some embodiments, the first and second distance sensors comprise capacitive proximity sensors, and the self-capacitance sensing technology detects a change in capacitance of the touch or proximity sensor when a target object is in proximity to the capacitive proximity sensor. The target object in this embodiment comprises a body part of the user, although the target object may be other conductive objects. When a target object is close to the capacitive proximity sensor, the voltage is applied to the detection electrode of the capacitive proximity sensor, the detection electrode is subjected to electrostatic induction to generate a polarization phenomenon, the more the detected object is close to the detection electrode, the more the induction charges on the detection electrode are, and the capacitance C of the detection electrode is increased along with the increase of the charge quantity, so that the approach degree of the target object can be reflected through the capacitance C of the electrode. In other embodiments, other sensors capable of detecting the proximity of an object, such as an infrared distance sensor, may be used as the first distance sensor and/or the second distance sensor.

It should be noted that, in the power control method of this embodiment, the determination is performed according to data that can be detected by a sensor that is used, and when the position relationship between the user and the terminal is detected by different sensors, the detection capabilities of the sensors may be different, for example, when the sensing distance of some sensors is short (for example, several millimeters to ten and several millimeters), the radio frequency power intensity of the antenna can be controlled when the user is relatively close to the terminal or contacts the terminal; that is, in this embodiment, the determination of the positional relationship between the user and the terminal may include only whether the user touches a certain part of the terminal. If the sensor used is capable of sensing objects at a relatively large distance, e.g. a few centimeters or even more, a more precise control may be provided, e.g. starting the control of the rf power strength of the antenna when the distance between the user and the terminal is less than a certain threshold.

In some embodiments, obtaining the location relationship between the user and the terminal includes:

judging whether a user answers a message through a receiver of the terminal;

when a user listens to a message through a receiver of the terminal, at least one antenna closest to the receiver is used as a target antenna.

It can be understood that if a user answers a message through the earphone of the terminal, the earphone of the terminal is necessarily close to the ear of the user, that is, the terminal and the user are located in a manner that the terminal is close to the head of the user and the earphone is close to the ear of the user. In particular embodiments, a sensor, for example, may be used to determine whether a user is listening to a message via the handset.

As a specific example, the terminal includes an upper half area and a lower half area, the first antenna of the terminal is disposed in the lower half area, the second antenna is disposed in the upper half area, and the terminal includes at least one first distance sensor closer to the first antenna and at least one second distance sensor closer to the second antenna. It will be appreciated that when a user listens to a message via the handset, the user may be in close proximity to various parts of the terminal, for example, the user may hold the lower half of the terminal with the handset of the terminal in the upper half proximate to the user's ear, or the lower half of the terminal may be in close proximity to the user's face even if the user holds the upper half of the terminal. Therefore, in this example, the distance value between the terminal and the user may be obtained through the first distance sensor and the second distance sensor, and when the first distance between the user and the lower half area is smaller than the first threshold, and the first distance between the user and the upper half area is smaller than the second threshold, and the terminal also plays the content through the earpiece, it may be considered that the user is listening to the message through the earpiece of the terminal. In this example, if the second antenna is closer to the receiver, it is determined that the second antenna is the target antenna. It can be understood that, when the receiver is used, the receiver part of the terminal is very close to the brain of a user, so that the radio frequency power intensity of the antenna which is closer to the receiver can be reduced more effectively, and the specific absorption rate of the electromagnetic wave energy can be reduced to meet the standard; and the antenna farther away from the receiver can not reduce the radio frequency power intensity or reduce the radio frequency power intensity less, so that the communication quality is ensured.

In other examples, it may also be determined whether the user answers the message through the handset by other means, for example, optical sensors may be provided near the handset of some terminals, and it may be determined whether the optical sensors are blocked during sounding of the handset, and it may be determined whether the user holds the handset close to the ear. When a user answers a call, the user usually has the action of lifting the phone to place the phone beside the ear, so that in some implementation processes, the posture change of the terminal can be judged through a motion sensor in the terminal to assist in judging whether the user puts an earphone close to the ear.

In some implementations, the target antenna may include at least two. For example, the terminal is divided into an upper half area and a lower half area in the above example, the number of first antennas in the lower half area is two, and when it is determined that the user is closer to the lower half area of the terminal, all the first antennas in the lower half area may be selected as the target antennas. For example, the terminal includes a plurality of antennas as in the above example, a distance sensor is correspondingly disposed beside each of the antennas, and at least two antennas that are closest to each other (i.e., at least two antennas are selected in order from high proximity to low proximity) are selected as the target antennas according to the obtained proximity of each antenna to the user.

When the target antenna includes at least two antennas, the rf power strength of the target antennas may be uniform or different, but the maximum rf power strength of the target antennas should be smaller than the minimum rf power strength of the other antennas.

In some embodiments, the power control method further comprises:

if the distance between the user and the terminal is detected to be increased, the radio frequency power intensity of at least one antenna is increased on the premise of ensuring that the electromagnetic wave energy ratio absorption rate value meets the set standard.

In order to ensure the communication quality, the position relation between the user and the terminal can be monitored in real time, and once the terminal is far away from the user, the radio frequency power intensity is increased. The rf power strength of only some of the antennas may be increased, for example, the rf power strength of other antennas having less influence on the user radiation is preferentially increased, or the rf power strength of all antennas on the terminal is increased, but the rf power strength of the target antenna is increased to a lesser extent. Of course, in the specific implementation process, if the terminal is far from the user, for example, it is determined that the distance between the terminal and the user is greater than the set threshold or the terminal cannot detect the user, the radio frequency power intensity of each antenna may be recovered to the initial state; if the terminal is close to the user, for example, it is determined that the distance between the terminal and the user is smaller than the set threshold, the rf power strength of the target antenna can still be kept lower than the rf power strength of other antennas.

In some embodiments, if the terminal is detected to be far away from the important part of the user, the radio frequency power intensity of at least one antenna is increased. For example, when the user changes from a state of answering a call with an earphone to a state of viewing information only by holding the terminal, the terminal is far away from the head of the user, and the standard of the specific absorption rate of the electromagnetic wave energy which can be received by the hand and the body of the user is lower than that of the head, namely, the radio frequency power intensity of at least one antenna can be increased.

In some embodiments, before the causing at least two of the antennas on the terminal to use different radio frequency power strengths, the method further includes:

judging whether the energy ratio absorption rate value of the electromagnetic wave of the terminal meets a set standard or not;

and if the energy ratio absorption rate value of the electromagnetic wave of the terminal does not meet the set standard, continuing to execute the subsequent steps, otherwise, not executing the subsequent steps.

It should be understood that the determination of whether the electromagnetic wave energy ratio absorption rate value of the terminal meets the set standard may be performed at any time before at least two antennas of the antennas on the terminal adopt different rf power intensities, for example, before the position relationship between the user and the terminal is obtained, or after at least one target antenna having the largest influence on the user radiation is determined according to the position relationship. If the energy specific absorption rate of the electromagnetic wave of the terminal does not exceed the standard, the radio frequency power intensity of the antenna is not controlled based on the position relation between the user and the terminal, the radio frequency power intensity is guaranteed not to be reduced endlessly, and the communication quality is guaranteed. However, it is understood that, in practical applications, the rf power strength of the antenna on the terminal may also be controlled based on other considerations (e.g., for energy saving), and the above embodiment only includes the following steps that are not performed in the power control method of the embodiment. In a specific implementation process, what radio frequency power intensity each antenna of the terminal operates can enable whether the electromagnetic wave energy ratio absorption rate value of the terminal meets a set standard to be measured in advance through tests and the like, and whether the electromagnetic wave energy ratio absorption rate value of the terminal meets the set standard can be judged by judging how the radio frequency power intensity of each antenna of the terminal under the current condition. Of course, it may also be determined whether the electromagnetic wave energy ratio absorption rate value of the terminal meets the set standard by other manners, for example, if the electromagnetic wave energy ratio absorption rate value can be measured in real time, the measurement result may be obtained to determine.

It is understood that, in this embodiment, as long as the specific absorption rate of electromagnetic wave energy meets the set standard, this embodiment does not limit the rf power intensity of the antenna to be controlled to decrease. For example, in some embodiments, the radio frequency power strength of other antennas than the target antenna may be optionally increased to be higher than a preset default radio frequency power strength, so as to ensure the quality of communication. Therefore, the power control method of the embodiment can realize flexible control for the terminal with at least two antennas, and is suitable for more scene requirements. It should be noted that, in each case, how much the rf power strength of the first antenna and/or the second antenna is adjusted can be specifically controlled, and a technician can obtain a suitable result through experimental tests in the design and production processes and preset the result in the mobile terminal.

In the embodiment, the position relationship between the user and the terminal is judged, so that at least one target antenna with the largest influence on the radiation of the user is judged according to the position relationship, the radio frequency power intensity of the target antenna is set to be smaller than the radio frequency power intensities of other antennas, and the target antenna has a large influence on the radiation of the user, so that the electromagnetic wave energy specific absorption rate can be controlled more effectively when the same radio frequency power intensity is reduced, thereby effectively controlling the electromagnetic wave energy specific absorption rate, reducing or not influencing the communication quality, and improving the use experience of the user.

Second embodiment

In this embodiment, a mobile terminal with two antennas is taken as an example for further description, and fig. 4 is a schematic diagram of an antenna configuration of a mobile terminal according to a second embodiment of the present invention, in which a first antenna 41 is disposed in a lower half area of the mobile terminal and is close to a bottom of the mobile terminal, and a second antenna 42 is disposed in an upper half area of the mobile terminal and is close to a top of the mobile terminal. In this embodiment, the mobile terminal is respectively provided with an upper main board and a lower main board (respectively provided in an upper half area and a lower half area of the mobile terminal), the two main boards are respectively provided with the capacitive proximity sensors, and the first capacitive proximity sensor 43 is close to the first antenna 41, and the second capacitive proximity sensor 44 is close to the second antenna 42. In other embodiments, the first capacitive proximity sensor 43 and the second capacitive proximity sensor 44 may be disposed on the same motherboard, but they are disposed close to the first antenna 41 and the second antenna 42, respectively.

As shown in fig. 5, in this embodiment, the process of controlling the rf power strength of the antenna includes:

s501, starting communication;

communication here includes, but is not limited to, initiating a telephone call, sending a message, etc.

S502, calibrating the capacitive proximity sensor according to the frequency band power;

in this example, in order to more accurately determine the proximity of the user, before determining the position relationship between the user and the mobile terminal, the parameter of the capacitive proximity sensor is calibrated according to the power of the mobile terminal in the current frequency band.

S503, judging whether the user approaches through the capacitive proximity sensor;

if the user approaches, a change in capacitance value is caused, and if the change in capacitance is greater than a predetermined threshold (e.g., greater than a parasitic capacitance of the capacitive proximity sensor), the user is considered to approach.

S504, when detecting that a user approaches to a first capacitive proximity sensor of the mobile terminal, controlling the radio frequency power intensity of a first antenna to be reduced;

in this example, the detected distance may be set to be short, for example, when the user touches or is about to touch the mobile terminal, it is determined that the user is close to the mobile terminal. The lower half area of the mobile terminal is mainly contacted by the hand of the user, for example, before the user dials to connect the phone, the mobile terminal starts to communicate, the user holds the mobile terminal to wait, at this time, the radio frequency power intensity of the first antenna is controlled to be reduced, and the radio frequency power intensity of the second antenna can be kept, so that the communication quality is not influenced or is slightly influenced.

S505, when a user approaches a second capacitive proximity sensor of the mobile terminal, controlling the radio frequency power intensity of a second antenna to be reduced;

the upper half area of the mobile terminal is mainly in contact with the head of the user, for example, the user makes a call through the receiver, and the rf power strength of the second antenna can be controlled to decrease in order to reduce the harm of the electromagnetic wave to the head.

In some specific implementation processes, if the user does not contact the lower half area of the mobile terminal, the radio frequency power intensity of the first antenna is not controlled, and the communication quality is ensured.

In other specific implementation processes, because the mobile terminal is closer to the head of the user during a call, the radio frequency power intensities of the first antenna and the second antenna can be optionally reduced to a certain extent, but it can be understood that the second antenna is generally closer to the head of the user and is closer to the brain, and at this time, the second antenna is a target antenna having the greatest influence on the radiation of the user, so that the radio frequency power intensity of the second antenna is reduced to a greater extent, and the influence on the radiation of the user can be reduced more effectively.

In some specific implementation processes, if the user is sensed by the first capacitive proximity sensor and the second capacitive proximity sensor at the same time, that is, the user approaches or contacts the upper half area and the lower half area of the terminal at the same time, the radio frequency power intensities of the first antenna and the second antenna can be reduced to a certain degree. The rf power strength of the second antenna, which is closer to the user's brain, can also be adjusted to be smaller than the rf power strength of the first antenna.

In the embodiment, whether the user is close to the terminal is monitored during communication, and according to the area where the user is close to the terminal, the target antenna with large influence on the radiation of the user can be judged, so that the radio frequency power intensity of the target antenna is lower than the radio frequency power intensities of other antennas, the electromagnetic wave energy specific absorption rate can be effectively reduced, the radio frequency power intensities of other antennas are not reduced or are reduced to a small extent, and the communication quality is ensured. The effect of reducing the degree of degradation of communication quality while effectively reducing the specific absorption rate of electromagnetic wave energy is achieved.

Third embodiment

The present embodiment further provides a terminal, which includes at least two antennas disposed at different positions, as shown in fig. 6, and further includes a processor 61, a memory 62, and a communication bus 63, where:

the communication bus x is used for realizing connection communication between the processor 61 and the memory 62;

the processor 61 is configured to execute one or more programs stored in the memory 62 to implement the steps of the power control method in the first and second embodiments.

The present embodiment also provides a computer readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps of the power control method in the first and second embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A power control method is applied to a terminal, the terminal comprises at least two antennas which are arranged at different positions, and the power control method comprises the following steps:

acquiring a position relation between a user and a terminal;

2. The method according to claim 1, wherein the causing at least two of the antennas on the terminal to adopt different radio frequency power strengths when the terminal performs communication comprises any one of:

3. The power control method of claim 1, wherein the obtaining the location relationship between the user and the terminal comprises:

acquiring the proximity degree of the user and each antenna;

at least one antenna closest to the user is the target antenna.

4. The power control method of claim 3, wherein the terminal includes an upper half area and a lower half area, a first antenna of the terminal being disposed in the lower half area, a second antenna being disposed in the upper half area; the terminal comprises at least one first distance sensor closer to the first antenna and at least one second distance sensor closer to the second antenna;

the obtaining the proximity of the user to each antenna comprises:

and acquiring parameters of the first distance sensor and the second distance sensor, and acquiring the proximity degree of the user and each antenna according to the first distance sensor and the second distance sensor.

5. The power control method of claim 4, wherein the first and second distance sensors comprise capacitive proximity sensors.

6. The power control method of claim 1, wherein the obtaining the location relationship between the user and the terminal comprises:

7. The power control method of claim 1, wherein the power control method further comprises:

8. The power control method of claim 1, wherein before causing at least two of the antennas at the terminal to employ different radio frequency power strengths, further comprising:

9. A terminal is characterized in that the terminal comprises at least two antennas arranged at different positions, a processor, a memory and a communication bus;

the processor is configured to execute one or more programs stored in the memory to implement the steps of the power control method of any of claims 1 to 8.

10. A computer readable storage medium, having one or more programs stored thereon, the one or more programs being executable by one or more processors to perform the steps of the power control method as claimed in any one of claims 1 to 8.