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Power saving method for mobile communication terminal in idle mode

An idle mode, mobile terminal technology, applied in wireless communication, electrical components, sustainable communication technology, etc., can solve problems such as memory energy waste, energy consumption, bus busyness, etc., to reduce power consumption and reduce interaction.

Inactive Publication Date: 2010-05-12
CHONGQING CYIT COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] 1. Frequent interaction between MCU and DSP will cause frequent reading and writing of shared memory and busy bus, which greatly wastes resources;
[0020] 2. In each DRX cycle, the MCU and DSP will exit the sleep state, so the frequent operation of the two chips, especially the frequent operation of the MCU, will greatly increase the power consumption of the UE
And if the PICH indicates that the PCH block does not exist, or the PCH block exists but the UE_ID does not match, then the MCU enters the wake-up state this time, which is meaningless energy consumption
At the same time, after the MCU wakes up, it must operate the memory, and the meaningless operation of the memory will also cause a waste of energy

Method used

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  • Power saving method for mobile communication terminal in idle mode
  • Power saving method for mobile communication terminal in idle mode
  • Power saving method for mobile communication terminal in idle mode

Examples

Experimental program
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specific Embodiment

[0039] The overall process of this embodiment is attached image 3 Shown:

[0040] 1. After the UE cell selection is successful, the MCU sends the PICH location, paging cycle, number of measurement frequency points, PCH frame number, and UE_ID of the terminal to the DSP for storage at one time;

[0041] 2. The UE enters the idle state, the DSP controls the MCU and itself enters the sleep state, and the hardware circuit starts hardware timing. The flow of this step is attached Figure 4 shown;

[0042] 201. The MCU judges the use status of its own external equipment, if no external equipment is in use, execute step 202, otherwise execute step 204;

[0043] 202. The MCU protects the current register data;

[0044] 203, turn off the MCU core power supply and clock, the MCU enters a deep sleep state, and execute step 205;

[0045] 204. Turn off the MCU core clock, and the MCU enters a light sleep state;

[0046] 205. The DSP sets the sleep time according to the PICH position,...

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Abstract

The invention discloses a power saving method for a mobile communication terminal in an idle mode. After the successful selection of a UE cell, an MCU sends each parameter related to paging detection to a DSP before the MCU enters a sleep state for the first time; and in the following detection of PICH in each DRX period, the reading of PCH and the matching of UE-ID are both finished automatically by the DSP. When the DSP detects the paging of local UE, the MCU is awakened to process. The method of the invention can effectively reduce alternation times between the MCU and the DSP and can reduce the awakening times of the MCU so as to fulfill the aim of saving power.

Description

technical field [0001] The present invention relates to mobile communication terminal (abbreviated as UE) technology, and in particular to a power saving method for a mobile communication terminal in an idle mode. Background technique [0002] In a mobile communication system, according to whether there is a radio resource control connection, the UE is divided into an idle mode and a connected mode. Thus, each functional module of the UE can be in three working states: normal working state, idle state, and sleep state. The normal working state means that the module is doing normal business processing; the idle state means that the module is currently idle without business processing; the sleep state means that the module is in a low power consumption or off state, and the sleep state is divided into deep sleep state and light sleep state, deep sleep means that the power and clock of the module are turned off, and light sleep means that the module only turns off its own core...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W60/04H04W68/00H04W88/02
CPCY02B60/50Y02D30/70
Inventor 夏军杨黎明王茂林吴付利刘发宽王茜李宇翔唐博周勃牟伦荣龚剑
Owner CHONGQING CYIT COMM TECH
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