CN110336623B

CN110336623B - Power detection method and device and mobile terminal

Info

Publication number: CN110336623B
Application number: CN201910665211.XA
Authority: CN
Inventors: 洪奇; 李文剑
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2022-03-04
Anticipated expiration: 2039-07-22
Also published as: CN110336623A

Abstract

The invention provides a power detection method, a power detection device and a mobile terminal. The method comprises the following steps: under the condition that the mobile terminal is in a time division duplex mode, acquiring a target frequency band where the mobile terminal is located; under the condition that a transmitting port of the mobile terminal is in a working state, acquiring standard coupling power acquired by a receiving port; and obtaining the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relation. The embodiment of the invention can reduce the use of the coupler and the switch by directly utilizing the internal switch of the PA to detect the transmitting power, save the cost and save the layout space.

Description

Power detection method and device and mobile terminal

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a power detection method, apparatus, and mobile terminal.

Background

With the progress of social science and technology, more and more science and technology are applied to the daily life of people. The use of mobile phones is becoming more and more popular, and the scientific and technical knowledge applied to the mobile phones is also becoming more and more abundant. With the advent of the 5G era, the radio frequency of a mobile phone needs to support more frequency bands, and Power Amplifiers (PA) supporting more frequency bands and more modes are needed. The transmitting path of the mobile phone can detect the transmitting power according to the power detecting path so as to control the power, and an effective closed-loop control is formed.

The mobile phone has strict power control, and the real-time transmitting power of the mobile phone needs to be detected so as to adjust the transmitting power of the mobile phone in real time, so that the mobile phone achieves the optimal transmitting and receiving state and the optimal power consumption. In the existing radio frequency scheme, an additional coupling device or a switch is required to be added for detection when the transmission power is detected. Particularly, when the 5G era is entered, the mobile phone needs to support dual connection of 4G and 5G, and needs to support power detection of 2 paths or 3 paths at the same time. For example, referring to fig. 1, a schematic diagram of a power amplifier in the prior art is shown, as shown in fig. 1, a transceiver WTR has only one FBRX (FeedBack Receiver) interface, and bandwidths of 5G bands are very wide, n77(3.3G-4.2GHz, 900M), n78(3.3G-3.8GHz, 500M), and n79(4.4G-5GHz, 600M), so that each band requires a separate PA for power amplification, and each band requires a separate power detection. In this case, some switches or other additional devices are required to implement the power detection function, so that additional cost is required, and occupation of a PCB (Printed Circuit Board) layout space is increased.

Disclosure of Invention

Embodiments of the present invention provide a power detection method, an apparatus, and a mobile terminal, so as to solve the problems in the prior art that a power detection function can be realized only by adding some switches or other additional devices, which increases additional cost and occupies additional PCB layout space.

In order to solve the above technical problem, the embodiment of the present invention is implemented as follows: :

in a first aspect, an embodiment of the present invention provides a power detection method, including: under the condition that the mobile terminal is in a time division duplex mode, acquiring a target frequency band where the mobile terminal is located; under the condition that a transmitting port of the mobile terminal is in a working state, acquiring standard coupling power acquired by a receiving port; and obtaining the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relation.

In a second aspect, an embodiment of the present invention provides a power detection apparatus, including: a target frequency band obtaining module, configured to obtain a target frequency band in which the mobile terminal is located when the mobile terminal is in a time division duplex mode; the standard coupling power acquisition module is used for acquiring standard coupling power acquired by a receiving port under the condition that a transmitting port of the mobile terminal is in a working state; and the actual transmitting power acquisition module is used for obtaining the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relation.

In a third aspect, an embodiment of the present invention provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program, when executed by the processor, implements the steps of the power detection method described in any one of the above.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the power detection method described in any one of the above.

In the embodiment of the invention, the target frequency band where the mobile terminal is located is obtained under the condition that the mobile terminal is in the time division duplex mode, the standard coupling power collected by the receiving port is obtained under the condition that the transmitting port of the mobile terminal is in the working state, and the actual transmitting power of the mobile terminal is obtained based on the standard coupling power, the target frequency band and the standard parameter mapping relation.

Drawings

Fig. 1 is a schematic diagram of a prior art power amplifier;

FIG. 2 is a flow chart illustrating steps of a method for power detection according to an embodiment of the present invention;

FIG. 2a is a schematic diagram of a transmit port operation according to an embodiment of the present invention;

FIG. 2b is a diagram illustrating operation of a receiving port according to an embodiment of the present invention;

fig. 2c is a schematic diagram of a power amplifier according to an embodiment of the present invention;

FIG. 3 is a flow chart illustrating steps of a method for power detection according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a power detection apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a power detection apparatus according to an embodiment of the present invention;

fig. 6 is a block diagram of a mobile terminal according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 2, a flowchart illustrating steps of a power detection method provided in an embodiment of the present invention is shown, where the power detection method may be applied to a terminal device, and specifically may include the following steps:

step 101: and under the condition that the mobile terminal is in a time division duplex mode, acquiring a target frequency band where the mobile terminal is located.

In the embodiment of the present invention, the terminal Device may be a mobile terminal, and the mobile terminal may be a mobile electronic Device such as a mobile phone and a PAD (Portable Android Device). The terminal device may also be a Personal Computer (PC) terminal, and the PC terminal may be an electronic device such as a desktop Computer and a notebook Computer.

Time Division Duplex (TDD) is a duplexing mode of a communication system for separating reception and transmission channels in a mobile communication system. I.e. TDD mode, mobile communication systems in which reception and transmission are in different time slots of the same frequency channel, i.e. carrier, with guaranteed time to separate the reception and transmission channels.

The target frequency band refers to a wireless network frequency band where the mobile terminal is currently located, such as 699-1300 MHz, 1700-2300 MHz, 2300-2700 MHz and the like.

For different network operators, the mobile terminal may register a corresponding wireless network frequency band in advance, and specifically, may be determined according to an actual situation, which is not limited in the embodiment of the present invention.

When the mobile terminal is in the TDD mode, the frequency band registered by the mobile terminal may be acquired, and the frequency band registered by the mobile terminal is used as the target frequency band.

After the target frequency band where the mobile terminal is located is obtained, step 102 is executed.

Step 102: and acquiring the standard coupling power acquired by a receiving port under the condition that the transmitting port of the mobile terminal is in a working state.

A transmit port (TX, transmit) refers to a port used for a mobile terminal to transmit information.

TX is in working state, i.e. the PA switch is turned ON to TX ON mode, and RX (receive port) is also working at the same time, which can collect the power coupled through the PA switch.

The standard coupled power refers to the power collected by the RX and coupled through the PA switch.

For example, referring to fig. 2a, a schematic diagram of the operation of a transmitting port provided in the embodiment of the present invention is shown, and as shown in fig. 2a, when a PA switch is turned ON to TX ON, a part of power is coupled to RX, and RX may collect the coupled standard coupling power.

After obtaining the standard coupling power collected by the RX, step 103 is performed.

Step 103: and obtaining the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relation.

The standard parameter mapping relationship refers to a parameter mapping relationship existing between coupling power acquired by the RX and transmitting power of the TX in a TDD mode when the TX is in an operating state.

The actual transmit power refers to the power actually transmitted by the TX, except for the coupled power coupled to the RX by the mobile terminal.

Typically, the coupling coefficient of the coupler is 20-28, as shown in Table 1 below:

table 1:

in table 1, Parameter represents a Parameter, Frequency is a Frequency band, Coupling Factor is a Coupling coefficient, that is, the power detected by the coupler is 20-28db of the actual transmitted power, and after debugging, calibration and integration of the calibration parameters, the real-time transmitted power can be obtained according to the power detected by the coupler, thereby performing power control.

In the above process, the switch is not completely isolated from TX or RX when TX is ON or RX is ON, and when the switch is switched to TX, that is, TX is ON, the isolation between Input and Output is 28dB, that is, when PA is at transmission power, the power coupled to the RX port is 28dB of the attenuation of the transmission power of TX, as shown in the following table 2.

Table 2:

Parameter	Frequency	Typical
				Insertion loss	2400-2500	0.4	dB
Isolation(Input to Output)	2400-2500	28	dB

in table 2, Insertion loss and Isolation represent Insertion loss.

As can be seen from tables 1 and 2 above, the power obtained by a special coupler is comparable to the power coupled to RX via PA switch TX, so that in TDD mode, when TX is in operation, the function of the coupler can be replaced by RX.

For different frequency bands, different calibration parameter mappings may be used, for example, when the target frequency band is 1, the calibration parameter mapping a is used, and when the target frequency band is 2, the calibration parameter mapping B is used.

It should be understood that the above examples are only examples for better understanding of the technical solutions of the embodiments of the present invention, and are not to be taken as the only limitation of the embodiments of the present invention.

In different frequency bands, the TX transmit power and the RX collected coupling power comply with a calibration parameter mapping relationship, and the manner of obtaining the calibration parameter mapping relationship will be described in detail in the following embodiment two, which is not described herein again.

After the target frequency band where the mobile terminal is located is obtained in the above step, a calibration parameter mapping relationship corresponding to the target frequency band may be obtained according to the above corresponding relationship, and then the obtained calibration parameter mapping relationship and the standard coupling power acquired by the RX obtain the actual transmission power of the mobile terminal, for example, as shown in the following table 3:

table 3:

standard coupled power	Actual transmission power
		A	a
B	b

As shown in table 3, when the mobile terminal is in the target frequency band, and the standard coupling power of RX is a, the actual transmit power of the corresponding TX is a; and when the standard coupling power of the RX is B, the actual transmission power of the corresponding TX is B.

The embodiment of the invention replaces the coupler by RX, reduces the use of the coupler and the switch, and saves the cost of power detection.

According to the power detection method provided by the embodiment of the invention, the target frequency band where the mobile terminal is located is obtained under the condition that the mobile terminal is in the time division duplex mode, the standard coupling power collected by the receiving port is obtained under the condition that the transmitting port of the mobile terminal is in the working state, and the actual transmitting power of the mobile terminal is obtained based on the standard coupling power, the target frequency band and the standard parameter mapping relation.

Example two

Referring to fig. 3, a flowchart illustrating steps of a power detection method provided in an embodiment of the present invention is shown, where the power detection method may be applied to a terminal device, and specifically may include the following steps:

step 201: and under the condition that the mobile terminal is in a time division duplex mode, acquiring a plurality of frequency bands registered by the mobile terminal in advance.

The multiple frequency bands refer to frequency bands registered in advance by the mobile terminal, and the target frequency band mentioned in the following steps is one of the multiple frequency bands.

In practical application, when the mobile terminal starts to be used, a plurality of frequency bands, such as 699-1300 MHz, 1700-2300 MHz, 2300-2700 MHz, and the like, can be registered in advance, and then the registered frequency bands are stored in the mobile terminal.

When the standard parameter mapping relationship is obtained through testing, a plurality of frequency bands pre-stored in the mobile terminal may be obtained, and step 202 is executed.

Step 202: and under the condition that the transmitting port is in a working state, acquiring the coupling power which is acquired by the receiving port and corresponds to each frequency band, and acquiring the transmitting power which is acquired by the transmitting port and corresponds to each frequency band.

The coupled power refers to the power coupled (i.e. power leakage) to the receiving port (RX) when the transmitting port (TX) is in an operating state and the mobile terminal is in each frequency band to transmit information to the base station; the standard coupled power mentioned in the following steps is one power among a plurality of coupled powers.

The transmission power refers to the transmission power except the coupling power when the mobile terminal is in each frequency band to transmit information to the base station when a transmission port (TX) is in an operating state.

In each frequency band, when the mobile terminal sends information to the base station, RX may be used to collect coupling power corresponding to each frequency band, and TX may be used to collect transmission power corresponding to each frequency band.

After the mobile terminal obtains the coupling power corresponding to each frequency band collected by RX and obtains the transmission power corresponding to each frequency band collected by TX, step 203 is performed.

Step 203: and establishing the standard parameter mapping relation based on the plurality of frequency bands, the plurality of coupling powers and the plurality of transmitting powers.

After the coupling power corresponding to each frequency band acquired by the RX is acquired and the transmission power corresponding to each frequency band acquired by the TX is acquired, a standard parameter mapping relationship may be established based on a plurality of frequency bands, a plurality of coupling powers, and a plurality of transmission powers, for example, a frequency band includes a frequency band 1 and a frequency band 2, when the mobile terminal is in the frequency band 1, the acquired coupling power is power a, and the acquired transmission power is power B; when the mobile terminal is in the frequency band 2, the collected coupling power is power C, and the collected transmission power is power D, and the standard parameter mapping relationship established by the collected coupling power is as shown in the following table 4:

table 4:

frequency band	Coupled power	Transmitting power
			1	A	B
2	C	D

As shown in table 4, when the mobile terminal is in the frequency band 1 and the coupling power acquired by RX is a, the TX transmit power is B; and when the mobile terminal is in the frequency band 2 and the coupling power acquired by the RX is C, the transmitting power of the TX is D.

It is to be understood that the above-described examples are merely illustrative for better understanding of the embodiments of the present invention and are not to be construed as the only limitations on the embodiments of the present invention.

After establishing the standard parameter mapping relationship based on the plurality of frequency bands, the plurality of coupling powers and the plurality of transmission powers, step 204 is performed.

Step 204: and under the condition that the mobile terminal is in a time division duplex mode, acquiring a target frequency band where the mobile terminal is located.

After the target frequency band where the mobile terminal is located is obtained, step 205 is executed.

Step 205: and acquiring the standard coupling power acquired by a receiving port under the condition that the transmitting port of the mobile terminal is in a working state.

After obtaining the standard coupling power collected by the RX, step 206 is performed.

Step 206: and obtaining the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relation.

table 1:

Table 2:

in table 2, Insertion loss and Isolation represent Insertion loss.

table 3:

standard coupled power	Actual transmission power
		A	a
B	b

After the actual transmission power of the mobile terminal is obtained, step 207 is executed.

Step 207: and acquiring first base station information sent by the base station.

The first base station information is information transmitted from a base station to a mobile terminal.

After obtaining the actual transmission power of the mobile terminal, the mobile terminal may send information to the base station and receive the first base station information returned by the base station.

After acquiring the first base station information transmitted by the base station, step 208 is executed.

Step 208: and determining the spacing distance between the mobile terminal and the base station based on the first base station information.

The separation distance is a distance between the current mobile terminal and a base station that transmits and receives information.

After receiving the first base station information sent by the base station, the separation distance between the mobile terminal and the base station may be calculated according to the first base station information.

It can be understood that the scheme of calculating the separation distance between the base station and the mobile terminal through the information sent by the base station is a mature technical scheme in the field, and the embodiment of the present invention is not described in detail herein.

After determining the separation distance between the mobile terminal and the base station based on the first base station information, step 209 is performed.

Step 209: and acquiring the target transmitting power of the mobile terminal according to the spacing distance.

The target transmission power refers to transmission power used when the mobile terminal transmits information to the base station.

After the separation distance between the mobile terminal and the base station is obtained, the minimum power of the information which can be received by the base station when the mobile terminal sends the information to the base station can be calculated according to the separation distance, and the target transmission power can be the calculated minimum power or a power slightly larger than the minimum power, so that the problem that the base station cannot receive the information sent by the mobile terminal is avoided.

However, the scheme of calculating the target transmitting power according to the separation distance is also a mature technical scheme in the field, and the embodiment of the present invention is not described in detail here.

After the target transmission power of the mobile terminal is obtained according to the separation distance, step 210 is performed.

Step 210: and adjusting the transmitting power of the mobile terminal so as to adjust the actual transmitting power to the target transmitting power.

After the target transmission power is obtained, the transmission power of the mobile terminal may be adjusted, so that the actual transmission power of the mobile terminal may be adjusted to the target transmission power.

It can be understood that the actual transmission power may be greater than the target transmission power, and in this case, the actual transmission power of the mobile terminal is adjusted to the target transmission power, so that the transmission power consumption of the mobile terminal can be ensured.

And when the actual transmitting power is smaller than the target transmitting power, the actual transmitting power of the mobile terminal is adjusted to the target transmitting power under the condition, so that the mobile terminal can be ensured to reach the optimal transmitting and receiving state.

Step 211: and under the condition that the receiving port of the mobile terminal is in a working state, acquiring the base station transmitting power when the base station transmits the second base station information to the mobile terminal.

The second base station information is information transmitted from the base station to the mobile terminal.

The receiving port is in a working state, namely the PA switch is switched ON to an RX ON mode, at the moment, TX does not work, only RX is in the working state, and at the moment, the base station transmitting power acquired by RX is the actual receiving power of the mobile terminal. For example, referring to fig. 2b, a schematic diagram of the operation of a receiving port according to an embodiment of the present invention is shown, as shown in fig. 2b, when the PA switch is turned ON to the RX ON mode, TX does not operate, and only RX is in an operating state.

When the RX of the mobile terminal is in an operating state, the base station transmission power when the base station transmits the second base station information to the mobile terminal may be obtained, and step 212 is executed.

Step 212: and taking the transmitting power of the base station as the actual receiving power of the mobile terminal.

After the base station transmission power is obtained, the base station transmission power can be directly used as the actual receiving power of the mobile terminal.

The following describes the power detection method provided by the embodiment of the present invention with reference to fig. 2 c.

Referring to fig. 2c, a schematic diagram of a power amplifier according to an embodiment of the present invention is shown, as shown in fig. 2c, the RX is used instead of the FBRX interface in fig. 1, and in a state where a transmission port is in an operating state, a coupling power coupled to the RX is equivalent to a power coupled to the FBRX interface in fig. 1.

The power detection method provided by the embodiment of the invention has the beneficial effects of the power detection method provided by the first embodiment, and can also adjust the transmitting power of the mobile terminal in real time so as to enable the mobile terminal to achieve the optimal transmitting and receiving state and the optimal power consumption.

EXAMPLE III

Referring to fig. 4, a schematic structural diagram of a power detection apparatus provided in an embodiment of the present invention is shown, where the power detection apparatus may be applied to a terminal device, and specifically includes the following modules:

a target frequency band obtaining module 310, configured to obtain a target frequency band in which the mobile terminal is located when the mobile terminal is in a time division duplex mode;

a standard coupling power obtaining module 320, configured to obtain a standard coupling power collected by a receiving port when a transmitting port of the mobile terminal is in a working state;

an actual transmission power obtaining module 330, configured to obtain an actual transmission power of the mobile terminal based on the standard coupling power, the target frequency band, and a calibration parameter mapping relationship.

The power detection device provided by the embodiment of the invention obtains the target frequency band of the mobile terminal under the condition that the mobile terminal is in the time division duplex mode, obtains the standard coupling power collected by the receiving port under the condition that the transmitting port of the mobile terminal is in the working state, and obtains the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the standard parameter mapping relation.

Example four

Referring to fig. 5, a schematic structural diagram of a power detection apparatus provided in an embodiment of the present invention is shown, where the power detection apparatus may be applied to a terminal, and specifically includes the following modules: :

a multi-band obtaining module 410, configured to obtain multiple pre-registered frequency bands of the mobile terminal when the mobile terminal is in a time division duplex mode; the target frequency band is one of the plurality of frequency bands;

a coupling and transmission power obtaining module 420, configured to obtain, when the transmission port is in a working state, a coupling power corresponding to each of the frequency bands and acquired by the receiving port, and a transmission power corresponding to each of the frequency bands and acquired by the transmission port; the standard coupled power is one of a plurality of the coupled powers;

a parameter mapping relationship establishing module 430, configured to establish the standard parameter mapping relationship based on the multiple frequency bands, the multiple coupling powers, and the multiple transmitting powers;

a target frequency band obtaining module 440, configured to obtain a target frequency band in which the mobile terminal is located when the mobile terminal is in a time division duplex mode;

a standard coupling power obtaining module 450, configured to obtain a standard coupling power collected by a receiving port when a transmitting port of the mobile terminal is in a working state;

an actual transmission power obtaining module 460, configured to obtain an actual transmission power of the mobile terminal based on the standard coupling power, the target frequency band, and a calibration parameter mapping relationship;

a first base station information obtaining module 470, configured to obtain first base station information sent by a base station;

an interval distance determining module 480, configured to determine an interval distance between the mobile terminal and the base station based on the first base station information;

a target transmission power obtaining module 490, configured to obtain a target transmission power of the mobile terminal according to the separation distance;

a transmission power adjusting module 4100, configured to adjust the transmission power of the mobile terminal to adjust the actual transmission power to the target transmission power;

a base station transmitting power obtaining module 4110, configured to obtain, when a receiving port of the mobile terminal is in a working state, a base station transmitting power when a base station transmits second base station information to the mobile terminal;

an actual received power obtaining module 4120, configured to use the base station transmission power as an actual received power of the mobile terminal.

The power detection device provided by the embodiment of the invention has the beneficial effects of the power detection device provided by the third embodiment, and can also adjust the transmitting power of the mobile terminal in real time, so that the mobile terminal can reach the optimal transmitting and receiving state and the optimal power consumption.

EXAMPLE five

Referring to fig. 6, a hardware structure diagram of a mobile terminal for implementing various embodiments of the present invention is shown.

The mobile terminal 500 includes, but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 6 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

A processor 510, configured to acquire a target frequency band in which the mobile terminal is located when the mobile terminal is in a time division duplex mode; under the condition that a transmitting port of the mobile terminal is in a working state, acquiring standard coupling power acquired by a receiving port; and obtaining the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relation.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 501 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 510; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 501 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 501 can also communicate with a network and other devices through a wireless communication system.

The mobile terminal provides the user with wireless broadband internet access through the network module 502, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 503 may convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output as sound. Also, the audio output unit 503 may also provide audio output related to a specific function performed by the mobile terminal 500 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.

The input unit 504 is used to receive an audio or video signal. The input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of a still picture 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 506. The image frames processed by the graphic processor 5041 may be stored in the memory 509 (or other storage medium) or transmitted via the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 501 in case of the phone call mode.

The mobile terminal 500 also includes at least one sensor 505, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 5061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 5061 and/or a backlight when the mobile terminal 500 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), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 505 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 506 is used to display information input by the user or information provided to the user. The Display unit 506 may include a Display panel 5061, and the Display panel 5061 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 507 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 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 5071 using a finger, stylus, or any suitable object or attachment). The touch panel 5071 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 510, and receives and executes commands sent by the processor 510. In addition, the touch panel 5071 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 5071, the user input unit 507 may include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 5071 may be overlaid on the display panel 5061, and when the touch panel 5071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 510 to determine the type of the touch event, and then the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of the touch event. Although in fig. 6, the touch panel 5071 and the display panel 5061 are two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 5071 and the display panel 5061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 508 is an interface through which an external device is connected to the mobile terminal 500. 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 508 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 500 or may be used to transmit data between the mobile terminal 500 and external devices.

The memory 509 may be used to store software programs as well as various data. The memory 509 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 509 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 510 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 509 and calling data stored in the memory 509, thereby performing overall monitoring of the mobile terminal. Processor 510 may include one or more processing units; preferably, the processor 510 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 processor 510.

The mobile terminal 500 may further include a power supply 511 (e.g., a battery) for supplying power to various components, and preferably, the power supply 511 may be logically connected to the processor 510 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.

In addition, the mobile terminal 500 includes some functional modules that are not shown, and thus, are not described in detail herein.

Preferably, an embodiment of the present invention further provides a mobile terminal, which includes a processor 510, a memory 509, and a computer program that is stored in the memory 509 and can be run on the processor 510, and when the computer program is executed by the processor 510, the respective processes of the above-mentioned embodiment of the power detection method are implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not described here again.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing power detection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

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.

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 detection method is applied to a mobile terminal, and is characterized by comprising the following steps:

under the condition that the mobile terminal is in a time division duplex mode, acquiring a target frequency band where the mobile terminal is located;

under the condition that a transmitting port of the mobile terminal is in a working state, acquiring standard coupling power acquired by a receiving port; wherein the working states of the transmitting port and the receiving port are controlled by a switch of a power amplifier;

and obtaining the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relation.

2. The method according to claim 1, further comprising, before the step of obtaining the target frequency band where the mobile terminal is located:

under the condition that the mobile terminal is in a time division duplex mode, acquiring a plurality of frequency bands registered in advance by the mobile terminal; the target frequency band is one of the plurality of frequency bands;

under the condition that the transmitting port is in a working state, acquiring coupling power which is acquired by the receiving port and corresponds to each frequency band, and acquiring transmitting power which is acquired by the transmitting port and corresponds to each frequency band; the standard coupled power is one of a plurality of the coupled powers;

and establishing the standard parameter mapping relation based on the plurality of frequency bands, the plurality of coupling powers and the plurality of transmitting powers.

3. The method according to claim 1, wherein after the step of obtaining the actual transmission power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relationship, the method further comprises:

acquiring first base station information sent by a base station;

determining a separation distance between the mobile terminal and the base station based on the first base station information;

acquiring target transmitting power of the mobile terminal according to the spacing distance;

and adjusting the transmitting power of the mobile terminal so as to adjust the actual transmitting power to the target transmitting power.

4. The method according to claim 1, further comprising, after the step of obtaining the target frequency band where the mobile terminal is located:

under the condition that a receiving port of the mobile terminal is in a working state, acquiring base station transmitting power when a base station sends second base station information to the mobile terminal;

and taking the transmitting power of the base station as the actual receiving power of the mobile terminal.

5. A power detection device applied to a mobile terminal, comprising:

a target frequency band obtaining module, configured to obtain a target frequency band in which the mobile terminal is located when the mobile terminal is in a time division duplex mode;

the standard coupling power acquisition module is used for acquiring standard coupling power acquired by a receiving port under the condition that a transmitting port of the mobile terminal is in a working state; wherein the working states of the transmitting port and the receiving port are controlled by a switch of a power amplifier;

and the actual transmitting power acquisition module is used for obtaining the actual transmitting power of the mobile terminal based on the standard coupling power, the target frequency band and the calibration parameter mapping relation.

6. The apparatus of claim 5, further comprising:

the multi-band acquisition module is used for acquiring a plurality of pre-registered frequency bands of the mobile terminal under the condition that the mobile terminal is in a time division duplex mode; the target frequency band is one of the plurality of frequency bands;

a coupling and transmission power obtaining module, configured to obtain, when the transmission port is in a working state, coupling power corresponding to each of the frequency bands acquired by the reception port and transmission power corresponding to each of the frequency bands acquired by the transmission port; the standard coupled power is one of a plurality of the coupled powers;

and the parameter mapping relation establishing module is used for establishing the standard parameter mapping relation based on the plurality of frequency bands, the plurality of coupling powers and the plurality of transmitting powers.

7. The apparatus of claim 5, further comprising:

the first base station information acquisition module is used for acquiring first base station information sent by a base station;

an interval distance determining module, configured to determine an interval distance between the mobile terminal and the base station based on the first base station information;

a target transmitting power obtaining module, configured to obtain a target transmitting power of the mobile terminal according to the separation distance;

and the transmission power adjusting module is used for adjusting the transmission power of the mobile terminal so as to adjust the actual transmission power to the target transmission power.

8. The apparatus of claim 5, further comprising:

a base station transmitting power obtaining module, configured to obtain, when a receiving port of the mobile terminal is in a working state, a base station transmitting power when the base station transmits second base station information to the mobile terminal;

and the actual received power acquisition module is used for taking the transmitting power of the base station as the actual received power of the mobile terminal.

9. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the power detection method according to any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the power detection method according to any one of claims 1 to 4.