A method to reduce the power consumption of mobile terminals and the mobile terminals

A mobile terminal and power consumption technology, applied in the field of mobile communication, can solve the problems of the battery can not be very large, the energy limit of the battery storage, etc., to reduce the probability, reduce power consumption, and prolong the working time.

Inactive Publication Date: 2009-10-07
ST ERICSSON SEMICON BEIJING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Restricted by technology and the size and weight of mobile terminals, the battery cannot be made very large, so the energy stored in the battery is also greatly limited

Method used

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  • A method to reduce the power consumption of mobile terminals and the mobile terminals
  • A method to reduce the power consumption of mobile terminals and the mobile terminals
  • A method to reduce the power consumption of mobile terminals and the mobile terminals

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Embodiment Construction

[0029] After the mobile terminal is turned off, it enters a power-saving dormant state, and at this time, the processor of the mobile terminal is in a stopped state, and there is no communication between the processor and the off-chip memory. After the mobile terminal is turned on, it enters into a working state, and at this time, the processor of the mobile terminal is running at full speed. In the power saving sleep state, the power consumption of the mobile terminal is very small, and it is of little significance to perform power saving processing in this state. Therefore, the present invention mainly focuses on the power consumption of the mobile terminal in the working state, and achieves the purpose of reducing the power consumption of the terminal and improving the working performance through corresponding methods. Hereinafter, the present invention will be described in detail through specific embodiments in conjunction with the accompanying drawings.

[0030] In mobil...

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Abstract

The present invention provides a method to reduce the power consumption of mobile terminals and the mobile terminals. When the mobile terminal in the first working state needs to switch to the second working state, this method will copy the common code segment of the second working state saved in the off-chip memory to in-chip SRAM, modify the mapping relationship in MMU, modify the address of the common code segment of the second working state mapped to the off-chip memory into the common code segment of the second working state mapped to the in-chip memory, and then enter the second working state. The present invention may reduce the power consumption of mobile terminals and enhance the working performance of mobile terminals.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for reducing power consumption of a mobile terminal and the mobile terminal. Background technique [0002] In the field of mobile communication, the power supply of the mobile terminal is usually provided by a battery. Restricted by the technology and the size and weight of the mobile terminal, the battery cannot be made very large, so the energy stored in the battery is also greatly limited. The working time of the mobile terminal is often limited by the energy of the battery. Therefore, effectively reducing the power consumption of the mobile terminal is currently the main means to prolong the working time of the mobile terminal. [0003] The mobile terminal includes a system-on-a-chip, which includes a processor (CPU) unit and a small amount of on-chip (On-Chip) memory, such as on-chip Static Random-Access Memory (SRAM, Static Random-Access Memory). Out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/73H04M1/725
CPCY02D30/70
Inventor 韦路
Owner ST ERICSSON SEMICON BEIJING
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