Application Processing Unit Wake-Up via Packet Pattern Detection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Power consumption is a significant issue in handheld devices with VoIP capabilities due to the need for constant operation of the baseband processing unit, wireless communication module, and application processing unit, which drains battery life.

Innovation Solution

A power management system that includes a baseband processing unit, a wireless communication module, and an application processing unit, where the wireless communication module sends a wake-up signal to the application processing unit when it receives a data packet conforming to a specific packet pattern, allowing the unit to transition from a sleep state to a normal state only when necessary, reducing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the application processing unit stays on to handle VoIP packets, then the communication capability is maintained, but power consumption increases

Engineering Contradiction:

Improvecommunication capabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The application processing unit dynamically transitions between sleep state and normal state based on incoming packet patterns. The unit is activated only when VoIP packets are detected and remains in sleep state otherwise, creating a dynamic power management system that adapts to communication needs.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The baseband processing unit performs preliminary analysis of incoming packets to identify VoIP packet patterns before activating the application processing unit. This preliminary action allows the system to prepare for upcoming high-power states and ensures immediate response when VoIP communication is needed.

Inventive Principle:

Principle #10Preliminary action

2Use of energy by moving object

If the application processing unit enters sleep state to save power, then power consumption is reduced, but response time to handle packets increases

Engineering Contradiction:

Improvepower consumptionVSAvoidresponse time

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The baseband processing unit performs preliminary analysis of incoming packets to identify VoIP packet patterns (such as SIP protocols) before activating the application processing unit. This preliminary detection mechanism ensures that the application processing unit is activated with minimal delay when VoIP packets are detected, reducing the effective response time while maintaining power savings during idle periods.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The baseband processing unit acts as an intermediary between the wireless communication module and the application processing unit. It monitors incoming packets and triggers activation of the application processing unit only when necessary, serving as a low-power wake-up mechanism that bridges the gap between power-saving mode and active communication handling.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Speed

If the application processing unit remains in normal state to handle packets immediately, then response speed is improved, but battery life decreases

Engineering Contradiction:

Improveresponse speedVSAvoidbattery life

Core Design Contradiction:

SpeedVSDuration of action of moving object

Solution Approach 1:

The system implements periodic monitoring of incoming packet patterns by the baseband processing unit, which continuously checks for VoIP packet signatures. This periodic detection mechanism allows the application processing unit to remain in sleep state during extended idle periods while ensuring rapid activation when communication is needed, optimizing the balance between response speed and battery life through time-based power management.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The power state of the application processing unit dynamically adjusts based on the detected packet patterns. The system transitions from a static power management approach to a dynamic one where the processing unit alternates between sleep and normal states according to actual communication requirements, extending battery life while maintaining responsive communication handling.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS8374170B2Power management systems and methods for electronic devices

Publication Date: 2013.02.12 HTC CORP

AI summary

Power management systems and methods for use in an electronic device are provided. The system comprises a baseband processing unit, a wireless communication module, and an application processing unit. The baseband processing unit connects to a base station via a communication network, thereby enabling the electronic device equipped with a communication capability. The wireless communication module receives a data packet via an Internet, and determines whether the data packet conforms to a packet pattern. If so, the wireless communication module transmits a wake-up signal to the application processing unit. In response to the wake-up signal, the application processing unit enters a normal state from a sleep state, and performs an application operation in the normal state according to the data packet.