A method for utilizing DSP micro dormancy mechanism to save power for terminal

A sleep mechanism and mobile terminal technology, applied in electrical components, current supply devices, radio/induction link selection and arrangement, etc., can solve the problem of inability to use DSP idle time slices, etc., to shorten working time, reduce power consumption, reduce The effect of power consumption

Inactive Publication Date: 2007-11-28
BEIJING XINWEI TELECOM TECH
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for making the DSP enter the micro-sleep state in the working state so as to save power for the mobile terminal, and solve the problem that the mobile terminal cannot use the idle time slice in the working state of the DSP in the prior art

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  • A method for utilizing DSP micro dormancy mechanism to save power for terminal
  • A method for utilizing DSP micro dormancy mechanism to save power for terminal
  • A method for utilizing DSP micro dormancy mechanism to save power for terminal

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Embodiment Construction

[0025] The working flow of the method of the present invention will be further described below in conjunction with the application of the present invention on SCDMA mobile terminals. It should be recognized that the specific implementation manners described here are only for the convenience of illustration but not limitation of the present invention.

[0026] FIG. 1 shows the hardware modules and their interrelationships for implementing the present invention in an SCDMA mobile terminal. The hardware modules related to the present invention include a radio frequency module 101 , a DMA controller 102 , a DSP 103 and a synchronous timing module 104 . The mobile terminal receives and transmits data through the radio frequency module 101 , and can directly transfer data with the DSP 103 under the control of the DMA controller 102 . The synchronization timing module 104 periodically generates interrupts sent to the DSP 103 for the DSP 103 to maintain the synchronization between the...

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Abstract

This invention provides a method for utilizing DSP microcosmic dormancy unit to save power of mobile terminals, which divides a signal process task to a first and a second kind including the following steps: 1, starting up a first kind of task when DSP primary program begins operation, 2, DSP responds the DMA interruption generated by a DMA controller and executes the second kind of task to finish process to a certain amount of symbol data in its interrupted service program, 3, the DSP primary program continues to process the first kind of task after the service program, if the first kind of task is finished, the DSP enters into a low powered dormancy state, 4, repeating step 2 till finishing all tasks of the first and second kinds of the current frames, which can reduce working time of DSP effectively.

Description

technical field [0001] The present invention relates to a method for saving power of a mobile terminal, in particular to a method for saving power of a mobile communication terminal by using a mechanism that a digital signal processor enters a dormant state in an idle time slice of its working state. Background technique [0002] In a mobile communication system, making a mobile terminal enter a sleep state when it is idle is a commonly used power saving method. In the sleep state, most modules of the mobile terminal, including digital signal processors (DSPs), microprocessors, radio frequency modules, and most peripherals are turned off or turned into low-power consumption modes, thereby reducing power consumption of the mobile terminal. Usually, the mobile terminal sleeps for a long time, and may sleep for tens of frames or even hundreds of frames. However, when the mobile terminal is in a working state, such as talking or transmitting data, there are usually many discont...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/32H04M1/73H04W52/02
CPCY02D30/70
Inventor 马世川梁敏谢海燕
Owner BEIJING XINWEI TELECOM TECH
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