CN108649716A - A kind of method for transmitting signals, receiving terminal, transmitting terminal and terminal device - Google Patents

Abstract

The embodiment of the invention discloses a kind of method for transmitting signals, receiving terminal, transmitting terminal and terminal devices, it is related to field of communication technology, it can solve during charging to terminal device, since terminal device shifts or moves, wireless charging transmitter and the sensing area of terminal device is caused to reduce, the problem of actual power that caused terminal device receives reduces, charge efficiency to reduce terminal device.Concrete scheme is：Receiving terminal obtains the difference between target power and the first power, which is the power that receiving terminal is asked to transmitting terminal, which is the power for the radio signal that transmitting terminal is sent according to target power to receiving terminal；Receiving terminal sends difference to transmitting terminal, and not within a preset range, which adjusts the first power to the absolute value of the difference for transmitting terminal；Receiving terminal receives the radio signal that transmitting terminal is sent, and the power of radio signal is the first power after adjustment.

Description

A signal transmission method, receiving end, sending end and terminal equipment

technical field

The embodiments of the present invention relate to the technical field of communications, and in particular, to a signal transmission method, a receiving end, a sending end, and a terminal device.

Background technique

Wireless charging technology is a new technology based on the principle of electromagnetic induction. A wireless charging transmitter based on wireless charging technology can charge terminal devices without a charging power cord. Generally, a wireless charging transmitter includes one or more primary coils, and when the wireless charging transmitter is working, only one of the primary coils can be activated at a time.

At present, most wireless charging transmitters include three primary coils, two of which are placed side by side, and another primary coil is stacked in the middle of the two primary coils. After the user places the terminal device on the wireless charging transmitter, the wireless charging transmitter can detect the induction area between the terminal device and each of the three primary coils, and activate the primary coil with the largest induction area with the terminal device , and then use the primary coil to send electrical signals to the terminal equipment, so as to achieve the purpose of charging the terminal equipment.

However, in the above method, in the process of charging the terminal device, if the induction area between the wireless charging transmitter and the terminal device is reduced due to the offset or movement of the terminal device, then the electrical signal sent by the wireless charging transmitter The power may also be reduced, which may reduce the actual power received by the terminal device, thereby reducing the charging efficiency of the terminal device.

Contents of the invention

Embodiments of the present invention provide a signal transmission method, a receiving end, a sending end, and a terminal device, which can solve the problem of the wireless charging transmitter and the terminal device being disconnected due to deviation or movement of the terminal device during the charging process of the terminal device. The reduction of the induction area reduces the actual power received by the terminal device, which results in a lower charging efficiency of the terminal device.

In order to solve the above technical problems, the embodiment of the present invention adopts the following technical solutions:

According to the first aspect of the embodiments of the present invention, a signal transmission method is provided. The signal transmission method includes: the receiving end obtains the difference between the target power and the first power, the target power is the power requested by the receiving end from the sending end, The first power is the power of the radio signal sent by the sending end to the receiving end according to the target power; the receiving end sends a difference to the sending end, the absolute value of the difference is not within the preset range, and the difference is used by the sending end to adjust the first A power; the receiving end receives the radio signal sent by the sending end, and the power of the radio signal is the adjusted first power.

According to the second aspect of the embodiments of the present invention, there is provided a signal transmission method. The signal transmission method includes: the transmitting end transmits a radio signal to the receiving end with a first power through a first coil, and the first power is set by the transmitting end according to the receiving end. The target power requested from the sending end is determined; the sending end receives the difference sent by the receiving end, the absolute value of the difference is not within the preset range, the difference is the difference between the target power and the first power, and the difference The value is used by the sending end to adjust the first power; the sending end adjusts the first power according to the difference; the sending end sends a radio signal to the receiving end with the adjusted first power through the first coil.

According to a third aspect of the embodiments of the present invention, a receiving end is provided, and the receiving end may include: an acquiring unit, a sending unit, and a receiving unit. Wherein, the obtaining unit is used to obtain the difference between the target power and the first power, the target power is the power requested by the receiving end from the sending end, and the first power is the radio signal sent by the sending end to the receiving end according to the target power power. The sending unit is configured to send the difference obtained by the obtaining unit to the sending end, the absolute value of the difference is not within a preset range, and the difference is used by the sending end to adjust the first power. The receiving unit is configured to receive the radio signal sent by the transmitting end, the power of the radio signal is the adjusted first power.

According to a fourth aspect of the embodiments of the present invention, a sending end is provided, and the sending end may include: a sending unit, a receiving unit, and an adjusting unit. Wherein, the sending unit is configured to send a radio signal to the receiving end with a first power through the first coil, and the first power is determined by the sending end according to a target power requested by the receiving end from the sending end. The receiving unit is used to receive the difference sent by the receiving end. The difference is the difference between the target power and the first power. The absolute value of the difference is not within the preset range. The difference is used by the sending end to adjust the first power. a power. An adjusting unit, configured to adjust the first power according to the difference received by the receiving unit. The sending unit is further configured to send a radio signal to the receiving end with the adjusted first power through the first coil.

The fifth aspect of the embodiments of the present invention provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and operable on the processor. When the computer program is executed by the processor, the following The steps of the signal transmission method described in one aspect.

A sixth aspect of the embodiments of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the signal transmission method as described in the first aspect are implemented .

The seventh aspect of the embodiments of the present invention provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and operable on the processor. When the computer program is executed by the processor, the following The steps of the signal transmission method described in the second aspect.

The eighth aspect of the embodiments of the present invention 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 steps of the signal transmission method as described in the second aspect are implemented .

In the embodiment of the present invention, the transmitting end may adjust the first power according to the difference between the target power sent by the receiving end and the first power, and send the radio signal to the receiving end with the adjusted first power. Since the difference between the target power and the first power is not within the preset range, the transmitting end can adaptively adjust the first power according to the difference, so the absolute value of the difference between the target power and the first power can be reduced. value, so that the power of the radio signal received by the receiving end is closer to the target power, thereby improving the charging efficiency of the receiving end.

Description of drawings

Fig. 1 is a schematic diagram of the architecture of an Android operating system provided by an embodiment of the present invention;

FIG. 2 is a flowchart 1 of a signal transmission method provided by an embodiment of the present invention;

FIG. 3 is a second flowchart of a signal transmission method provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a module composition of a sending end provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a receiving end provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a sending end provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a hardware structure of a terminal device provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The terms "first" and "second" in the description and claims of the embodiments of the present invention are used to distinguish different objects, rather than to describe a specific sequence of objects. In the description of the embodiments of the present invention, unless otherwise specified, "plurality" means two or more.

The term "and/or" in this article is an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and B exists alone These three situations. The symbol "/" in this document indicates that the associated object is an or relationship, for example, A/B indicates A or B.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present invention shall not be construed as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

Embodiments of the present invention provide a signal transmission method, a receiving end, a sending end, and a terminal device, which can be applied to a signal transmission process between a receiving end and a sending end. Specifically, it can be applied to the process of radio signal transmission between the receiving end and the sending end.

The terminal device in this embodiment of the present invention may be a terminal device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present invention.

The following uses the Android operating system as an example to introduce the software environment to which the signal transmission method provided by the embodiment of the present invention is applied.

As shown in FIG. 1 , it is a schematic structural diagram of a possible Android operating system provided by an embodiment of the present invention. In FIG. 1 , the architecture of the Android operating system includes four layers, namely: an application layer, an application framework layer, a system runtime layer and a kernel layer (specifically, the Linux kernel layer).

Wherein, the application program layer includes various application programs (including system application programs and third-party application programs) in the Android operating system.

The application program framework layer is the application program framework, and developers can develop some applications based on the application program framework layer while complying with the development principles of the application program framework layer.

The system runtime layer includes libraries (also called system libraries) and the Android operating system runtime environment. The library mainly provides various resources required by the Android operating system. The Android operating system operating environment is used to provide a software environment for the Android operating system.

The kernel layer is the operating system layer of the Android operating system and belongs to the bottom layer of the Android operating system software layer. The kernel layer provides core system services and hardware-related drivers for the Android operating system based on the Linux kernel.

Taking the Android operating system as an example, in the embodiment of the present invention, developers can develop a software program that implements the signal transmission method provided in the embodiment of the present invention based on the system architecture of the Android operating system shown in Figure 1 above, so that the signal The transmission method can be run based on the Android operating system as shown in FIG. 1 . That is, the processor or the terminal device can implement the signal transmission method provided by the embodiment of the present invention by running the software program in the Android operating system.

In the first embodiment of the present invention, FIG. 2 shows a signal transmission method provided by the embodiment of the present invention, and the method can be applied to a terminal device with an Android operating system as shown in FIG. 1 . As shown in Figure 2, the signal transmission method includes steps 201-step 207:

Step 201, the transmitting end sends a radio signal to the receiving end with a first power through the first coil.

Wherein, the first power is determined by the sending end according to the target power requested by the receiving end from the sending end.

In the embodiment of the present invention, the sending end may perform wireless communication with the receiving end after wirelessly connecting with the receiving end.

Optionally, in the embodiment of the present invention, before the above step 201, the signal transmission method provided in the embodiment of the present invention further includes step 301:

Step 301, the receiving end sends a power request to the sending end.

Wherein, the power request includes target power.

In the embodiment of the present invention, after the receiving end is wirelessly connected to the sending end, it sends a power request including target power to the sending end; after receiving the power request, the sending end activates the first coil in the sending end, and according to the power request The first power is determined by the target power carried in , and then the radio signal is sent to the receiving end with the first power.

Step 202, the receiving end obtains the difference between the target power and the first power.

Wherein, the target power is the power requested by the receiving end from the sending end, and the first power is the power of the radio signal sent by the sending end to the receiving end according to the target power.

In the embodiment of the present invention, after receiving the radio signal sent by the sending end, the receiving end detects the first power of the radio signal, and obtains the difference between the target power stored in the receiving end and the first power.

Step 203, the receiving end sends the difference to the sending end.

Wherein, the difference in the embodiment of the present invention is used by the sending end to adjust the first power.

In the embodiment of the present invention, the absolute value of the difference between the target power and the first power is not within a preset range.

Optionally, in this embodiment of the present invention, whether the absolute value of the difference is within a preset range may be determined by the sending end, or may be determined by the receiving end.

Optionally, in this embodiment of the present invention, the receiving end may send the difference to the sending end in the form of a Control Error Packet (CEP).

Optionally, in this embodiment of the present invention, the preset range is sent from the sending end to the receiving end.

Exemplarily, the transmitting end may obtain the position offset between the receiving end and the transmitting end multiple times in advance, and measure the actual power (such as the first power) currently output by the transmitting end under each position offset, and then The proportional relationship between the position offset and the actual power is calculated, and then a preset range is obtained, and then the preset range is sent to the receiving end in the form of a data packet; the receiving end saves the preset range in the receiving end.

Optionally, in this embodiment of the present invention, with reference to FIG. 2 , as shown in FIG. 3 , the above step 203 can be specifically implemented through step 203a:

Step 203a, when the receiving end determines that the absolute value of the difference is not within the preset range, the receiving end sends the difference and a switching instruction to the sending end.

Wherein, the switching instruction is used to instruct the sending end to switch the currently used coil.

In the embodiment of the present invention, when the receiving end judges that the absolute value of the difference is not within the preset range, it can directly send the difference value and a switching instruction to the sending end to instruct the sending end to switch the currently used coil, and according to the difference value Adjust the first power.

Step 204, the sending end receives the difference sent by the receiving end.

Wherein, the difference is the difference between the target power and the first power.

In the embodiment of the present invention, the sending end may judge whether to adjust the first power according to the received difference and the preset range stored in the sending end.

Optionally, in this embodiment of the present invention, with reference to FIG. 2 , as shown in FIG. 3 , the above step 204 can be specifically implemented through step 204a, and after the above step 204a, the signal transmission method provided by this embodiment of the present invention further includes step 401 :

Step 204a, the sending end receives the difference value and the switching instruction sent by the receiving end.

Wherein, the switching instruction is used to instruct the sending end to switch the currently used coil.

In the embodiment of the present invention, the transmitting end may switch the currently used coil according to the received switching instruction, and adjust the first power according to the received difference.

Step 401, the sending end switches the first coil to the target coil according to the switching instruction.

In the embodiment of the present invention, the sending end may use a preset rule to switch the first coil to the target coil.

Optionally, in the embodiment of the present invention, the transmitting end includes a DC input module, a full-bridge inverter module, a matching network, a multiplexer, a main control of the transmitting end, and a three-coil group.

Among them, the DC input module is generally a DC power adapter for inputting DC power; the full-bridge inverter module can convert the input direct power into AC power and output the AC power through the coil; the matching network can include inductors L and The impedance matching of the capacitor C can be controlled by the main control of the transmitting end when switching coils, and the switch can be selected to switch between different matching networks; the main control of the transmitting end is used for detection of charging current, voltage, power and temperature, as well as controlling the frequency of the transmitting circuit and Tx communication Modules (such as modulation and demodulation circuits at the transmitting end), and circuit control for each module; multiplexer, a three-choice multiplexer that can realize three-coil switching, and the multiplexer switching is controlled by the main control of the transmitting end Choose different coils; each coil in the three-coil group is composed of multiple turns of thin wire; the number of turns, DC impedance and diameter of the coil can be designed according to specific needs; only one coil in the three-coil group can be activated at a time as a transmitter End working coil.

Optionally, in this embodiment of the present invention, after switching the first coil to the target coil, the sending end switches the first matching network to the target matching network, the first matching network is the matching network corresponding to the first coil, and the target The matching network is a matching network corresponding to the target coil; and the sending end can control the multiplexer at the sending end to conduct with the target coil.

Exemplarily, as shown in FIG. 4, the sending end includes a three-coil group, and the three-coil group includes coil 1, coil 2 and coil 3, coil 2 and coil 3 are placed side by side, and coil 1 is stacked on coil 2 and coil 3 Above; the matching network corresponding to coil 1 is matching network 1, the matching network corresponding to coil 2 is matching network 2, and the matching network corresponding to coil 3 is matching network 3. Assuming that the first coil activated by the sending end is coil 1, after receiving the switching command, the sending end switches coil 1 to coil 2 according to the preset rules, that is, changing coil 1 from an active state to an inactive state, and turning coil 2 from an active state to an inactive state. The active state changes to the active state; and, the sending end switches the matching network 1 to the matching network 2, and controls the multiplexer at the sending end to conduct with the coil 2 .

Step 205, the transmitting end adjusts the first power according to the difference.

Optionally, in this embodiment of the present invention, the sending end compares the absolute value of the difference with a preset range, and determines not to adjust the first power if the absolute value of the difference is within the preset range; When the absolute value of is not within the preset range, judge the relationship between the difference and zero. When the difference is greater than 0, it means that the first power is less than the target power. The sending end can increase the first power. When the difference is less than 0 , which indicates that the first power is greater than the target power, and the sending end can lower the first power.

Exemplarily, it is assumed that the preset range is a closed interval [0,1], the target power is 5W, and the first power is 3W. The receiving end acquires a difference of 2W between the target power and the first power, and the receiving end sends the difference of 2W to the sending end; the sending end increases the first power according to the difference of 2W.

Optionally, in the embodiment of the present invention, referring to FIG. 2, as shown in FIG. 3, the above step 205 can be specifically implemented through step 205a:

Step 205a, the transmitting end adjusts the first power according to the target coil and the difference.

Optionally, in the embodiment of the present invention, after the transmitting end switches the first coil to the target coil, it may adjust the operating parameters of the target coil according to the difference, so as to adjust the first power.

Optionally, in this embodiment of the present invention, the working parameters of the target coil may include the frequency, amplitude, and/or duty cycle of the alternating current of the target coil, and the like.

Exemplarily, after the transmitting end switches the coil 1 to the coil 2 according to a preset rule, the transmitting end adjusts the working parameters of the coil 2 according to the difference to adjust the first power.

Step 206: The transmitting end sends a radio signal to the receiving end with the adjusted first power through the first coil.

Optionally, in this embodiment of the present invention, with reference to FIG. 2 , as shown in FIG. 3 , the above step 206 can be specifically implemented through step 206a:

Step 206a, the transmitting end sends a radio signal to the receiving end with the adjusted first power through the target coil.

Step 207, the receiving end receives the radio signal sent by the sending end.

Wherein, the power of the radio signal is the adjusted first power.

An embodiment of the present invention provides a signal transmission method. The sending end can adjust the first power according to the difference between the target power sent by the receiving end and the first power, and send a radio signal to the receiving end with the adjusted first power. . Since the difference between the target power and the first power is not within the preset range, the transmitting end can adaptively adjust the first power according to the difference, so the absolute value of the difference between the target power and the first power can be reduced. value, so that the power of the radio signal received by the receiving end is closer to the target power, thereby improving the charging efficiency of the receiving end.

Optionally, in this embodiment of the present invention, the receiving end repeatedly executes Step 202, Step 203, and Step 207 in FIG. The transmission method further includes steps 501-503. The above step 205 can be specifically implemented through step 205b, and the above above step 206 can be specifically implemented through step 206b:

Step 501. When the receiving end determines that the absolute value of the difference is not within the preset range, the receiving end sends a switching instruction to the sending end.

Wherein, the switching instruction is used to instruct the sending end to switch the currently used coil.

In the embodiment of the present invention, when the receiving end executes steps 202, 203 and 207 for a preset number of times, if the difference received by the receiving end is still not within the preset range, the receiving end sends a switching instruction to the sending end.

Exemplarily, it is assumed that the preset number of times is 6 times. When the receiving end executes step 202, step 203 and step 207, the receiving end obtains the difference between the first power of the radio signal received for the sixth time and the target power, and the absolute value of the difference is no longer within the preset range In the case of within, the receiving end sends a switching instruction to the sending end.

Step 502, the sending end receives the switching instruction sent by the receiving end.

Step 503, the sending end switches the first coil to the target coil according to the switching instruction.

Step 205b, the transmitting end adjusts the first power according to the target coil and the difference.

Step 206b, the transmitting end sends a radio signal to the receiving end with the adjusted first power through the target coil.

It should be noted that for the specific descriptions of step 503, step 205b, and step 206b in the embodiment of the present invention, reference may be made to the relevant descriptions in step 401, step 205a, and step 206a in the above embodiment, and details are not repeated here.

Optionally, in the embodiment of the present invention, after the above step 206b, the signal transmission method provided in the embodiment of the present invention further includes step 601:

Step 601: If the transmitting end does not receive the switching instruction from the receiving end within a preset time period, the transmitting end continues to pass through the target coil and sends a radio signal to the receiving end with the adjusted first power.

Optionally, in the embodiment of the present invention, if the sending end receives the switching instruction sent again by the receiving end within the preset time period, the sending end will continue to switch the currently used target coil according to the switching instruction, and adjust the first coil according to the difference. power, and then send a radio signal to the receiving end with the adjusted first power.

Since the receiving end executes the preset number of steps 202, 203 and 207, and the received difference is still not within the preset range, it sends a switching instruction to the sending end to instruct the sending end to switch the currently used coil , so the first power can be further adaptively adjusted, so that the power of the radio signal received by the receiving end is closer to the target power.

In the second embodiment of the present invention, FIG. 5 shows a possible structural diagram of the receiving end involved in the embodiment of the present invention. As shown in FIG. 5 , the receiving end 50 may include: an acquisition unit 51, a sending unit 52 and receiving unit 53.

Wherein, the obtaining unit 51 is used to obtain the difference between the target power and the first power, the target power is the power requested by the receiving end 50 from the sending end, and the first power is the power sent by the sending end to the receiving end 50 according to the target power. power of the radio signal. The sending unit 52 is configured to send the difference obtained by the obtaining unit 51 to the sending end, the absolute value of the difference is not within a preset range, and the difference is used for the sending end to adjust the first power. The receiving unit 53 is configured to receive the radio signal sent by the transmitting end, the power of the radio signal being the adjusted first power.

In a possible implementation manner, the receiving end 50 repeatedly executes the steps performed by each unit shown in FIG. When the value is not within the preset range, a switching instruction is sent to the sending end, and the switching instruction is used to instruct the sending end to switch the currently used coil.

In a possible implementation manner, the sending unit 52 is specifically configured to: when the receiving end 50 determines that the absolute value of the difference is not within a preset range, send the difference and a switching instruction to the sending end, and the switching instruction uses Switch the currently used coil at the instruction sending end.

In a possible implementation manner, the foregoing preset range is sent by the sending end to the receiving end 50 .

The receiving end 50 provided by the embodiment of the present invention can implement various processes implemented by the receiving end in the above method embodiments. To avoid repetition, the detailed description and beneficial effects will not be repeated here.

FIG. 6 shows a possible structural diagram of the sending end involved in the embodiment of the present invention. As shown in FIG. 6 , the sending end 60 may include: a sending unit 61 , a receiving unit 62 and an adjusting unit 63 .

Wherein, the sending unit 61 is configured to send a radio signal to the receiving end with a first power through the first coil, and the first power is determined by the sending end 60 according to the target power requested by the receiving end to the sending end 60 . The receiving unit 62 is configured to receive the difference sent by the receiving end, the difference is the difference between the target power and the first power, the absolute value of the difference is not within the preset range, and the difference is used by the sending end 60 Adjust the first power. The adjusting unit 63 is configured to adjust the first power according to the difference received by the receiving unit 62 . The sending unit 61 is further configured to send a radio signal to the receiving end with the adjusted first power through the first coil.

In a possible implementation manner, the receiving unit 62 is further configured to receive a switching instruction sent by the receiving end, where the switching instruction is used to instruct the sending end 60 to switch the currently used coil. The sending end 60 in the embodiment of the present invention further includes: a switching unit. Wherein, the switching unit is configured to switch the first coil to the target coil according to the switching instruction received by the receiving unit. The adjusting unit 63 is specifically configured to: adjust the first power according to the target coil and the difference. The sending unit 61 is specifically configured to: send a radio signal to the receiving end with the adjusted first power through the target coil.

In a possible implementation, the sending unit 61 is also configured to transmit the radio signal to the receiving end with the adjusted first power through the target coil, if the sending end 60 does not receive the radio signal within a preset time period. The switching instruction sent by the receiving end continues to pass through the target coil, and sends a radio signal to the receiving end with the adjusted first power.

In a possible implementation manner, the adjusting unit 63 is specifically configured to: adjust the working parameter of the target coil according to the difference, so as to adjust the first power.

In a possible implementation manner, the receiving unit 62 is specifically configured to: receive the difference and the switching instruction sent by the receiving end, where the switching instruction is used to instruct the sending end 60 to switch the currently used coil.

In a possible implementation manner, the above-mentioned switching unit is also used to switch the first matching network to the target matching network after switching the first coil to the target coil according to the switching instruction received by the receiving unit 62. The first matching The network is a matching network corresponding to the first coil, and the target matching network is a matching network corresponding to the target coil. The sending end 60 in the embodiment of the present invention further includes: a control unit. Wherein, the control unit is used to control the multiplexer of the sending end 60 to conduct with the target coil.

The sending end 60 provided by the embodiment of the present invention can realize various processes implemented by the sending end in the above method embodiments. To avoid repetition, the detailed description and beneficial effects will not be repeated here.

It should be noted that, in this embodiment of the present invention, both the receiving end 50 and the sending end 60 may be terminal devices.

In a third embodiment of the present invention, FIG. 7 is a schematic diagram of a hardware structure of a terminal device implementing various embodiments of the present invention. As shown in FIG. 7 , the terminal device 100 includes, but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, Processor 110, power supply 111 and other components.

Those skilled in the art can understand that the terminal device structure shown in FIG. 7 does not constitute a limitation on the terminal device, and the terminal device may include more or less components than shown in the figure, or combine some components, or different components layout. In the embodiment of the present invention, the terminal devices include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.

Wherein, the processor 110 can be used to obtain the difference between the target power and the first power, the target power is the power requested by the receiving end from the sending end, and the first power is the power sent by the sending end to the receiving end according to the target power The power of the radio signal; send the difference to the sending end, the absolute value of the difference is not within the preset range, the difference is used for the sending end to adjust the first power; receive the radio signal sent by the sending end, the power of the radio signal is adjusted After the first power.

Alternatively, the processor 110 may be configured to send a radio signal to the receiving end with the first power through the first coil, the first power is determined by the sending end according to the target power requested by the receiving end from the sending end; Difference, the difference is the difference between the target power and the first power, the absolute value of the difference is not within the preset range, the difference is used by the sending end to adjust the first power; according to the difference, adjust the first power ; Sending a radio signal to the receiving end with the adjusted first power through the first coil.

In the embodiment of the present invention, the transmitting end may adjust the first power according to the difference between the target power sent by the receiving end and the first power, and send the radio signal to the receiving end with the adjusted first power. Since the difference between the target power and the first power is not within the preset range, the transmitting end can adaptively adjust the first power according to the difference, so the absolute value of the difference between the target power and the first power can be reduced. value, so that the power of the radio signal received by the receiving end is closer to the target power, thereby improving the charging efficiency of the receiving end.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 can be used for receiving and sending signals during sending and receiving information or during a call. Specifically, after receiving the downlink data from the base station, the processor 110 processes it; Uplink data is sent to the base station. Generally, the 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 the network and other devices through a wireless communication system.

The terminal device provides users with wireless broadband Internet access through the network module 102, such as helping users send and receive emails, browse web pages, and access streaming media.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the terminal device 100 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used to receive audio or video signals. The input unit 104 may include a graphics processing unit (Graphics Processing Unit, GPU) 1041 and a microphone 1042, and the graphics processing unit 1041 is used for still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The data is processed. The processed image frames may be displayed on the display unit 106 . The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage media) or sent via the radio frequency unit 101 or the network module 102 . The microphone 1042 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 101 for output in the case of a phone call mode.

The terminal device 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 and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and the / or backlighting. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the posture of terminal equipment (such as horizontal and vertical screen switching, related games) , magnetometer posture calibration), vibration recognition-related functions (such as pedometer, knocking), etc.; the sensor 105 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.

The display unit 106 is used to display information input by the 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 (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), or the like.

The user input unit 107 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the terminal device. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072 . The touch panel 1071, also referred to as a touch screen, can collect touch operations of the user on or near it (for example, the user uses any suitable object or accessory such as a finger or a stylus on the touch panel 1071 or near the touch panel 1071). operate). The touch panel 1071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the For the processor 110, receive the command sent by the processor 110 and execute it. In addition, the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071 , the user input unit 107 may also include other input devices 1072 . Specifically, other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

Further, the touch panel 1071 can be covered on the display panel 1061, and when the touch panel 1071 detects a touch operation on or near it, it will be sent to the processor 110 to determine the type of the touch event, and then the processor 110 can The type of event provides a corresponding visual output on the display panel 1061 . Although in FIG. 7, the touch panel 1071 and the display panel 1061 are used as two independent components to realize the input and output functions of the terminal device, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated The implementation of the input and output functions of the terminal device is not specifically limited here.

The interface unit 108 is an interface for connecting an external device to the terminal device 100 . For example, an external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 108 can be used to receive input from an external device (for example, data information, power, etc.) transfer data between devices.

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

The processor 110 is the control center of the terminal equipment, uses various interfaces and lines to connect various parts of the entire terminal equipment, runs or executes software programs and/or modules stored in the memory 109, and calls data stored in the memory 109 , execute various functions of the terminal equipment and process data, so as to monitor the terminal equipment as a whole. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 110 .

The terminal device 100 can also include a power supply 111 (such as a battery) for supplying power to various components. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. and other functions.

In addition, the terminal device 100 includes some functional modules not shown, which will not be repeated here.

Preferably, the embodiment of the present invention also provides a terminal device, including a processor 110, a memory 109, a computer program stored in the memory 109 and operable on the processor 110, when the computer program is executed by the processor 110 The various processes of the foregoing method embodiments can be implemented and the same technical effect can be achieved, so in order to avoid repetition, details will not be described here.

The embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, each process of the above-mentioned method embodiment can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, without departing from the gist of the present invention and the protection scope of the claims, many forms can also be made, all of which belong to the protection of the present invention.

Claims (17)

1. A signal transmission method, characterized in that the method comprises: The receiving end acquires a difference between a target power and a first power, the target power is the power requested by the receiving end from the sending end, and the first power is the power requested by the sending end to the receiving end according to the target power The power of the radio signal sent by the terminal; The receiving end sends the difference value to the sending end, the absolute value of the difference value is not within a preset range, and the difference value is used by the sending end to adjust the first power; The receiving end receives the radio signal sent by the sending end, and the power of the radio signal is the adjusted first power. 2. The method according to claim 1, wherein the receiving end repeatedly executes the method according to claim 1 until the number of executions reaches a preset number of times, the method further comprising: When the receiving end determines that the absolute value of the difference is not within the preset range, the receiving end sends a switching instruction to the sending end, and the switching instruction is used to instruct the sending end to switch the current Coil used. 3. The method according to claim 1, wherein the receiving end sends the difference to the sending end, comprising: When the receiving end determines that the absolute value of the difference is not within the preset range, the receiving end sends the difference and a switching instruction to the sending end, and the switching instruction is used to indicate the The sending end switches the currently used coil. 4. A signal transmission method, characterized in that the method comprises: The transmitting end sends a radio signal to the receiving end with a first power through the first coil, and the first power is determined by the transmitting end according to the target power requested by the receiving end from the transmitting end; The sending end receives the difference sent by the receiving end, the difference is the difference between the target power and the first power, the absolute value of the difference is not within a preset range, the The difference is used by the sending end to adjust the first power; The transmitting end adjusts the first power according to the difference; The sending end sends the radio signal to the receiving end with the adjusted first power through the first coil. 5. method according to claim 4, is characterized in that, described method also comprises: The sending end receives a switching instruction sent by the receiving end, and the switching instruction is used to instruct the sending end to switch the currently used coil; The sending end switches the first coil to the target coil according to the switching instruction; The sending end adjusts the first power according to the difference, including: The transmitting end adjusts the first power according to the target coil and the difference; The sending end sends the radio signal to the receiving end with the adjusted first power through the first coil, including: The sending end sends the radio signal to the receiving end with the adjusted first power through the target coil. 6. The method according to claim 5, characterized in that, after the transmitting end transmits the radio signal to the receiving end with the adjusted first power through the target coil, the method Also includes: If the transmitting end does not receive the switching instruction sent by the receiving end within the preset time period, the transmitting end will continue to pass through the target coil, and send the adjusted first power to the The receiving end sends the radio signal. 7. The method according to claim 5 or 6, wherein the transmitting end adjusts the first power according to the target coil and the difference, comprising: Adjusting the working parameters of the target coil according to the difference to adjust the first power. 8. A receiving terminal, characterized in that the receiving terminal comprises: an acquiring unit, configured to acquire a difference between a target power and a first power, the target power being the power requested by the receiving end from the sending end, and the first power being the power requested by the sending end according to the target power the power of the radio signal sent by the receiving end; a sending unit, configured to send the difference obtained by the acquiring unit to the sending end, the absolute value of the difference is not within a preset range, and the difference is used by the sending end to adjust the first power; The receiving unit is configured to receive the radio signal sent by the transmitting end, where the power of the radio signal is the adjusted first power. 9. The receiving end according to claim 8, wherein the receiving end repeatedly executes the steps as claimed in claim 10, until the number of times of execution reaches the preset number of times, the sending unit is further configured to When the receiving end determines that the absolute value of the difference is not within the preset range, send a switching instruction to the sending end, where the switching instruction is used to instruct the sending end to switch the currently used coil. 10. The receiving end according to claim 8, wherein the sending unit is specifically used for: When the receiving end determines that the absolute value of the difference is not within the preset range, send the difference and a switching instruction to the sending end, and the switching instruction is used to instruct the sending end to switch The coil currently in use. 11. A sender, characterized in that the sender includes: a sending unit, configured to send a radio signal to the receiving end with a first power through the first coil, the first power being determined by the sending end according to the target power requested by the receiving end from the sending end; The receiving unit is configured to receive the difference sent by the receiving end, the difference is the difference between the target power and the first power, and the absolute value of the difference is not within a preset range, so The difference is used by the sending end to adjust the first power; an adjusting unit, configured to adjust the first power according to the difference received by the receiving unit; The sending unit is further configured to send the radio signal to the receiving end with the adjusted first power through the first coil. 12. The sending end according to claim 11, wherein the receiving unit is further configured to receive a switching instruction sent by the receiving end, the switching instruction is used to instruct the sending end to switch the currently used Coil; The sending end also includes: a switching unit, configured to switch the first coil to a target coil according to the switching instruction received by the receiving unit; The adjustment unit is specifically used for: adjusting the first power according to the target coil and the difference; The sending unit is specifically used for: Sending the radio signal to the receiving end with the adjusted first power through the target coil. 13. The sending end according to claim 12, wherein the sending unit is further configured to send the radio to the receiving end with the adjusted first power through the target coil. After the signal, if the transmitting end does not receive the switching instruction sent by the receiving end within the preset time period, it will continue to pass through the target coil, and send the adjusted first power to the receiving end. send the radio signal. 14. The sending end according to claim 12 or 13, wherein the adjustment unit is specifically used for: Adjusting the working parameters of the target coil according to the difference to adjust the first power. 15. The transmitting terminal according to claim 12, wherein the switching unit is further configured to switch the first coil to the target coil according to the switching instruction received by the receiving unit, and then switch the second coil to the target coil. A matching network is switched to a target matching network, the first matching network is a matching network corresponding to the first coil, and the target matching network is a matching network corresponding to the target coil; The sending end also includes: The control unit is used to control the conduction between the multiplexer at the sending end and the target coil. 16. A terminal device, characterized by comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, when the computer program is executed by the processor, the The steps of the signal transmission method described in any one of claims 1 to 3. 17. A terminal device, characterized by comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, when the computer program is executed by the processor, the The steps of the signal transmission method described in any one of claims 4 to 7.