WO2011063680A1

WO2011063680A1 - Power management method for mobile terminal and mobile terminal

Info

Publication number: WO2011063680A1
Application number: PCT/CN2010/076947
Authority: WO
Inventors: 杨平
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-11-27
Filing date: 2010-09-15
Publication date: 2011-06-03
Also published as: CN101719964B; CN101719964A

Abstract

A power management method for a mobile terminal is disclosed by the present invention, the mobile terminal includes a power management chip for controlling a power supply in a system, and the power management chip is provided with a transistor power for controlling an output of the power supply. The power management method includes the following steps: the transistor power is controlled to be switched on or off; the transistor power is switched on or off in response to the control to generate a corresponding indication signal; and the system stays in the working state or the deep-sleeping state according to the output of the power supply controlled by the indication signal. A power management device for a mobile terminal and a mobile terminal are also disclosed by the present invention. In the present invention, just by switching on or off the transistor power, the system can stay in the normal working state or the deep-sleeping state, thereby simplifying the control flow of the power supply of the mobile terminal, and improving the switching efficiency of the mobile terminal system between the normal working state and the deep-sleeping state.

Description

Mobile terminal power management method and mobile terminal

The present invention relates to power management techniques, and more particularly to a mobile terminal power management method and a mobile terminal. Background technique

With the popularity and function of mobile terminals (such as mobile phones, handheld computers, etc.), there are more and more external devices for mobile terminals, and the requirements for power management are getting higher and higher. The current terminal power management scheme, before entering the deep sleep, needs to wake up the baseband chip through the baseband chip to control the normal working state of the power supply tube, and then control the power management chip through the baseband chip, and sequentially turn on or change the power supply voltage. In the process of the terminal transitioning from deep sleep to normal working state, the solution needs to wake up the baseband chip first, and then control the power management chip through the baseband chip, and the conversion speed is slow and the efficiency is low. Summary of the invention

The main purpose of the present invention is to provide a terminal power control method for simplifying the control flow of the power supply of the mobile terminal in the prior art, and improving the efficiency of switching between the normal working state and the deep sleep state of the mobile terminal system. .

The mobile terminal of the present invention includes a power management chip for controlling a power supply in the system, wherein the power management chip is provided with a crystal power supply for controlling the output of the power supply, and the power management method includes the following steps:

Control the crystal power supply to turn it on or off;

The crystal power supply response control is turned on or off, and a corresponding prompt signal is generated; Controlling the output of the power supply according to the prompt signal to make the system in an active state or a deep sleep state.

Preferably, the step of controlling the output of the power supply according to the prompt signal to make the system in a working state or a deep sleep state includes:

Receiving a prompt signal for turning on the crystal power, and controlling the output of the power supply in the system according to the opening prompt signal, so that the system is in a working state;

Receiving the prompt signal of the crystal power off, and controlling the output of the power supply in the system according to the shutdown prompt signal, so that the system is in a deep sleep state.

The present invention further provides a mobile terminal power management device, wherein the mobile terminal is provided with a baseband processor and a power supply for supplying power to the system, the mobile terminal power management device comprising a power management chip and a crystal power control module, wherein

The crystal power control module is configured to control a crystal power source to be turned on or off; and the power management chip is provided with:

The crystal power supply, in response to the control of the crystal power control module, is turned on or off and generates a corresponding prompt signal to be transmitted to the power output control module;

The power output control module is configured to control the output of the power supply according to the prompt signal of the crystal power source to make the system in a working state or a deep sleep state.

Preferably, the power output control module includes:

a first power register for receiving a prompt signal for turning on the crystal power, and controlling the output of the power supply in the system according to the opening prompt signal to make the system in a working state;

The second power register is configured to receive a prompt signal for the crystal power to be turned off, and to process the output of the power supply in the system according to the shutdown prompt signal, so that the system is in a deep sleep state.

Preferably, the baseband processor may include a control word setting module, configured to set a control word of the first power register and/or the second power register for the first power register and/or the second power register pair The power supply is controlled. Preferably, the crystal power control module includes a universal programmable input/output port GPIO for controlling the turning on or off of the crystal power according to a level control signal sent by the baseband processor.

The invention also provides a mobile terminal, comprising the above mobile terminal power management device. As can be seen from the above, the power management chip of the present invention is provided with a crystal power control module, which can control the opening or closing of the crystal power; the power management chip of the present invention further has a first power register and a second power register, which can be based on the crystal power supply. Turning on or off the generated prompt signal to control the power supply on/off, or changing the output voltage of the power supply, so that the system can be put into normal operation or deep sleep state by turning the crystal power on or off, simplifying the power supply of the mobile terminal. The control flow of the power supply improves the efficiency of the mobile terminal system switching between the normal working state and the deep sleep state. DRAWINGS

1 is a schematic structural diagram of a power management device for a mobile terminal according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a power output control module in an embodiment of the above embodiment; FIG. 3 is a structure of a mobile terminal according to an embodiment of the present invention; Schematic diagram

4 is a flowchart of a method for managing power supply of a mobile terminal according to another embodiment of the present invention; FIG. 5 is a specific flowchart of a step of controlling a power supply according to a prompt signal to make the system in an active state or a deep sleep state in an embodiment of the above embodiment. . detailed description

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

1 is a schematic structural diagram of a power management device 10 for a mobile terminal according to the present invention. As shown in FIG. 1, the power management device 10 includes a power management chip 11 and a crystal power control module 12. The power management chip 11 is provided with a crystal power source 111 and a power source output control module 112.

The baseband processor 13 is a control chip of the mobile terminal, and can read, write and transmit various control signals. For example, a high level signal or a low level signal. The power supply can be the power supply of the external device inside the mobile terminal, and can also include the power supply for ensuring the normal operation of the internal chips. The power management chip 11 is configured to control the working state of the plurality of power supplies; the crystal power source 111 is disposed in the power management chip 11, and can prompt the power management chip 11 for the power management chip 11 to control the working state of the power supply; The power control module 12 can be a switch that controls the state in which the crystal power source 111 is turned on or off. In an embodiment, when the crystal power supply control module 12 turns on the crystal power supply 111, the crystal power supply 111 can generate an opening prompt signal output to the power output control module 112. After receiving the opening prompt signal, the power output control module 112 turns on each The power supply of the group or the output voltage of the part of the power supply is changed to make the system in a normal working state; when the crystal power control module 12 turns off the crystal power supply 111, the crystal power supply 111 can generate a shutdown prompt signal output to the power output control module 112, and the power output control Module 112 can turn off part of the power supply or change the output voltage of a portion of the power supply to place the system in a deep sleep state.

In an embodiment, the crystal power control module 12 can be a General Purpose Input Output (GPIO), and the GPIO can be based on a control signal sent by the baseband processor 13 (eg, a high level signal or low power). The flat signal) turns the crystal power supply 111 on or off to generate a corresponding prompt signal.

As shown in FIG. 2, the power output control module 112 may include a first power register 113 and a second power register 114. The first power register 113 is connected to the crystal power source 111, receives the opening prompt signal of the crystal power source 111, and turns on the power supply source or changes the output voltage of the part of the power supply according to the opening prompt signal, so that the system is in the working state. The second power register 114 is connected to the crystal power source 111, receives the shutdown signal of the crystal power source 111, and turns off part of the power supply or changes the output voltage of the part of the power supply according to the shutdown prompt signal, so that the system is in a deep sleep state.

In an embodiment, the first power register 113 can control all power supplies, including on/off and output voltages of each group of power supplies. After the entire system is powered on, the power management chip 11 defaults. Working in the first power register 113, the system is in operation; the second power register 114 can also control all power supplies, including the on/off and output voltage of each group of power supplies. The two sets of registers can be separately set by the baseband processor 13 after the system is powered on, and the setting contents can include on/off and output voltage of each power supply.

The prompt signal generated by the crystal power source 111 can also be a high level signal or a low level signal, and the power output control module 112 can control the output of the power supply according to the high level signal or the low level signal. For example, the control of the first power supply register 113 and/or the second power supply register 114 described above can be implemented by a control word, and the control word can be set by the control word setting module 131 in the baseband processor 13 shown in Fig. 1 above. In an embodiment, the baseband processor 13 can control the power supply by setting the first power register 113 and/or the second power register 114 to have different control words according to different levels when the crystal power source 111 is turned on or off. Turns the output voltage of the power supply on, off, or changing to control the system between active/deep sleep states. The process of controlling the word to turn on, off, or alter the output voltage of the power supply is well known to those skilled in the art and will not be described herein.

When the system is in the working state and needs to switch to the deep sleep state, the crystal power supply 111 can be turned off by the crystal power control module 12, and the crystal power supply 111 can generate a prompt signal for the crystal power supply 111 to be turned off to the power output control module 112, so that the first The power register 113 turns off part of the power supply to turn off or lowers the output voltage of the power supply, thereby causing the system to switch to the deep sleep state; when the system needs to switch from the deep sleep state to the active state, the crystal power supply 111 can be turned on by the crystal power control module 12, The crystal power supply 111 outputs an opening prompt signal to the power output control module 112, causing the second power register 114 to turn the power supply off again or pull the power supply voltage, and the system enters an active state.

The invention controls the crystal power supply 111 to be turned on or off, so that the system can flexibly control between the normal working state and the deep sleep state, simplifies the control procedure of the power supply, and improves the control efficiency. The invention also provides a mobile terminal. As shown in FIG. 3, the mobile terminal includes at least the above-described baseband processor 13 and power management device 10. In an embodiment, the power management device 10 includes at least the power management chip 11 and the crystal power control module 12 described above. The power management chip 11 is provided with a crystal power source 111 and a power source output control module 112. The crystal power control module 12 can control the crystal power source 111 to be turned on or off according to a control signal sent by the baseband processor 13. For example, in an embodiment, the crystal power control module 12 can be a GPIO that can receive a high or low level signal, and the baseband processor 13 can write a high or low level signal and send it to the crystal power control module. 12 to control the turning on or off of the crystal power source 111. The crystal power supply 111 can be turned on or off in response to the control of the crystal power control module 12, and a corresponding prompt signal is generated to prompt the power management chip 11 so that the power output control module 112 controls the power supply to bring the system into an active state or a deep sleep state. The crystal power control module 12 is connected to the power management chip 11 for controlling the on or off state of the crystal power source 111 to generate a prompt signal.

FIG. 4 shows the flow of the power management method of the mobile terminal of the present invention. The method flow is based on the power management device 10 of the mobile terminal described above. As shown in FIG. 4, the power management method includes the following specific steps:

Step S10, controlling the crystal power source according to the control signal to turn it on or off;

Step S20, the crystal power supply response control is turned on or off, and a corresponding prompt signal is generated;

Step S30, controlling the output of the power supply according to the prompt signal to make the system in an active state or a deep sleep state.

In step S10, the crystal power supply 111 can be controlled to be turned on by the crystal power control module 12 to generate an opening prompt signal and output to the power management chip 11, and the crystal power supply 111 can be controlled to be turned off by the crystal power control module 12, and the crystal power source 111 is generated. Closed prompt signal;

In step S20, when the power output control module 112 in the power management chip 11 receives the prompt signal that the crystal power source 111 is turned on, the power management chip 11 can be controlled to perform power supply. Certain operations, such as turning on the power supply or changing the output voltage of the power supply, keep the power supply in normal operation.

When the power output control module 112 receives the shutdown prompt signal of the crystal power supply 111, the partial power supply is turned off according to the signal or the output voltage of the partial power supply is changed, so that the control power is in a deep sleep state.

Specifically, as shown in FIG. 5, the foregoing step S20 may include:

Step S21, setting a control word of the first power register 113 and/or the second power register 114 for the power management chip to manage the power;

Step S22, the first power register 113 receives the prompt signal that the crystal power source 111 is turned on, and turns on the power supply according to the opening prompt signal to make the system in a working state;

Step S23, the second power register 114 receives the prompt signal that the crystal power supply 111 is turned off, and turns off part of the power supply or changes the output voltage of the part of the power supply according to the shutdown prompt signal, so that the system is in a deep sleep state.

In an embodiment, the method may be: when the system is powered on, after each power supply is started, the power management chip 11 is operated, the crystal power supply 111 is turned on, and the system clock is provided to the system, and the system is working in a normal working state. The power management chip 11 operates under the default value of the first power register 113. At this time, the base control processor 13 can set the relevant control words of the first power register 113 and/or the second power register 114 to set the state of each power supply. (For example, the power on/off of each group and the output voltage, etc.).

When the control system needs to enter the deep sleep state from the normal state, the crystal power supply 111 can be turned off by controlling the crystal power control module 12, and the power management chip 11 receives the prompt signal that the crystal power supply 111 is turned off, and is controlled to the second power supply register 114. At work, the power supply output voltage is low or mostly off, and the system enters the power saving mode.

When it is required to control the power supply to return to the normal working state from the deep sleep state, the crystal power source 111 can be turned on by controlling the crystal power module 12, and the power management chip 11 receives the crystal power. The prompt signal that the source 111 is turned on is controlled to work in the first power register 113, and the system returns to the normal working state.

When the system needs to continuously switch between the deep sleep state and the normal working state, it is only necessary to control the turning on or off of the crystal power source 111, and the power management chip 11 can control between the first power source register 113 and the second power source register 114. To achieve the purpose of power saving and rapid control.

In summary, when the system is started, the power management chip 11 provides each group of power according to the default value of the first power register 113. After the system is completely started, the first power register 113 and the second power register 114 can be separately set; When the system needs to control between the deep sleep state and the normal operating state, it is only necessary to turn on/off the crystal power source 111 through the crystal power control module 12.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims

Claim

A power management method for a mobile terminal, wherein the mobile terminal includes a power management chip for controlling a power supply in the system, wherein the power management chip is provided with a crystal power supply for controlling the output of the power supply. The power management method includes the following steps:

Controlling the crystal power source to turn the crystal power source on or off;

The crystal power supply responds to the control, performs on or off, and generates a corresponding prompt signal; controls the output of the power supply according to the prompt signal to make the system in a working state or a sleep state.

2. The power management method according to claim 1, wherein the controlling the output of the power supply according to the prompt signal to make the system in an active state or a sleep state is specifically:

Receiving a prompt signal for turning on the crystal power, and controlling the output of the power supply in the system according to the opening prompt signal to make the system in a working state;

Receiving a prompt signal that the crystal power is turned off, and controlling the output of the power supply in the system according to the shutdown prompt signal, so that the system is in a sleep state.

A mobile terminal power management device, wherein the mobile terminal is provided with a baseband processor and a power supply for supplying power to the system, wherein the mobile terminal power management device comprises a power management chip and a crystal power control module. The power management chip is provided with a crystal power supply and a power output control module; wherein

The crystal power control module is configured to control the crystal power source to turn the crystal power source on or off;

The crystal power supply is turned on or off in response to the control of the crystal power control module, and generates a corresponding prompt signal to be transmitted to the power output control module;

And a power output control module, configured to control an output of the power supply according to a prompt signal of the crystal power source to make the system in a working state or a sleep state.

4. The mobile terminal power management apparatus according to claim 3, wherein: The power output control module includes:

a first power register for receiving a prompt signal for turning on the crystal power, and controlling an output of the power supply in the system according to the opening prompt signal to make the system in a working state;

The second power register is configured to receive a prompt signal for turning off the crystal power, and control the output of the power supply in the system according to the shutdown prompt signal to make the system sleep.

5. The mobile terminal power management apparatus according to claim 4, wherein the baseband processor comprises a control word setting module, configured to control the first power register and/or the second power register The word is set for the first power supply register and/or the second power supply register to control the power supply.

The mobile terminal according to claim 3, wherein the crystal power control module comprises a universal programmable input/output port for controlling the crystal power supply according to a level control signal sent by the baseband processor. Turn it on or off.

7. A mobile terminal, comprising a baseband processor and a power supply for supplying power to the system, wherein the power management device comprises a power management chip and a crystal power control module, wherein the power management chip is provided with a crystal power supply and a power output control Module; among them,

The mobile terminal according to claim 7, wherein the power output control module comprises:

a first power register, configured to receive a prompt signal for turning on the crystal power, and according to the opening a power supply in the prompt signal control system to make the system in an operating state; and a second power register for receiving a prompt signal for turning off the crystal power, and controlling the power supply in the system according to the shutdown prompt signal to make the system sleep status.

The mobile terminal according to claim 7, wherein the baseband processor is provided with a control word setting module, configured to perform control words on the first power register and/or the second power register Provided for controlling the power supply by the first power register and/or the second power register.

The mobile terminal of claim 7, wherein the crystal power control module comprises a universal programmable input/output port for controlling the crystal power supply according to a level control signal sent by the baseband processor. Turn it on or off.