Power supply managing and electricity saving method for TD-SCDMA mobile phone

A technology of TD-SCDMA and power management, which is applied in the field of power management and power saving of TD-SCDMA mobile phone system, which can solve the problems of no power management function, huge power consumption, battery power consumption, etc.

Inactive Publication Date: 2005-07-27
上海贝豪通讯电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recently, some semi-finished prototypes have basically no power management function, so the power consumpti...

Method used

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  • Power supply managing and electricity saving method for TD-SCDMA mobile phone
  • Power supply managing and electricity saving method for TD-SCDMA mobile phone
  • Power supply managing and electricity saving method for TD-SCDMA mobile phone

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Embodiment Construction

[0033] In TD-SCDMA mobile phones, different hardware modules are responsible for different functions. For example, some modules are used to transmit and receive signals, some deal with human-computer interaction, and some deal with input or output. All these modules consume power to complete their functional tasks. When some functions are not needed at some time, the corresponding module must be turned off or put to sleep as soon as possible. In the system framework, these modules include DSP, radio frequency, analog processor, TD-SCDMA layer one (L1) accelerator and such as USB, UART, chord chip, LCD, backlight, keyboard, camera control IC, IrDA IC, Bluetooth IC, etc. MCU peripherals.

[0034] The TD-SCDMA complete system is composed of multiple subsystems, and each subsystem has its corresponding hardware and software blocks. Power management is distributed in the top-level system control module and each subsystem module. Each power management module is responsible for t...

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PUM

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Abstract

The power management module distributes in top level system control module and each sub-system module. The power management of each system is decided and controlled by state machine. The state machine has three states: sleep, idle and working. The top level power management module is controlled by a low frequency clock that is valid when the top level system is under sleep state. At that time all sub-system are under sleep state. The low frequency clock uses a 32k crystal oscillator. When the system is under sleep state, the system high frequency clock is closed, so that base band controller, base band processor and all peripherals are closed.

Description

Technical field: [0001] The invention relates to the technical field of power management, in particular to a TD-SCDMA mobile phone system power management and power saving method. Background technique: [0002] At present, there is no third-generation TD-SCDMA commercial mobile phone on the market. Recently, some semi-finished prototypes have basically no power management function, so the power consumption is very huge. For example, if a 900mAH battery is used, the battery will run out of light in less than half an hour. Invention content: [0003] Because TD-SCDMA is an emerging third-generation mobile communication technology, its power management and power saving technology is not yet mature, the present invention is to provide an effective method to solve the power consumption problem of TD-SCDMA mobile terminals , thereby increasing standby and talk time. [0004] In order to reduce power consumption, the system is equipped with a dedicated power management and low ...

Claims

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Application Information

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IPC IPC(8): H04M1/73
CPCY02D30/70
Inventor 林锐
Owner 上海贝豪通讯电子有限公司
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