Communication Device Power State Packet Processing
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Solution Overview
Problem
Existing communication devices fail to efficiently manage power consumption when transitioning between operational modes, particularly when receiving packets during low power states, leading to suboptimal energy usage.
Innovation Solution
A communication device with a processing unit and memory that can transition between high and low power states, including specific low consumption states, where packet processing is executed or skipped based on predefined conditions, utilizing a main CPU and sub CPU to manage state transitions and packet handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the communication device transits to a low consumption state to reduce power usage, then power consumption is reduced, but packet processing capability is lost
Solution Approach 1:
The patent segments packet processing into two types: those that can be executed in low consumption state and those that require high consumption state. The processing unit determines whether to execute packet processes based on the current power state, allowing selective processing that resolves the contradiction between power saving and processing capability.
Solution Approach 2:
The system dynamically adjusts its behavior based on the current power state. When in low consumption state, the processing unit selectively executes only appropriate packet processes. When transitioning to high consumption state, full packet processing capability is restored. This dynamic adaptation allows the system to optimize the balance between power consumption and processing capability.
2Reliability
If the communication device continuously monitors packet conditions to maintain processing capability, then packet processing reliability is maintained, but power consumption increases
Solution Approach 1:
The system performs partial monitoring and processing appropriate to the current state. In low consumption state, the processing unit monitors only essential conditions and executes only suitable packet processes. This partial action maintains sufficient reliability while significantly reducing power consumption compared to continuous full-capability monitoring.
3Speed
If the communication device quickly transitions between power states to respond to packets, then responsiveness is improved, but energy efficiency deteriorates due to frequent state changes
Solution Approach 1:
The system performs preliminary determination of whether packet processes can be executed in the current low consumption state before transitioning. This preliminary action allows the system to remain in low consumption state longer by executing appropriate processes, reducing the frequency of state transitions and improving energy efficiency while maintaining acceptable response speed.
Data Source
AI summary
In a case where a first condition is met while a communication device may in a high consumption state, the communication device may transit to a first low consumption state. In a case where a second condition is met while the communication device is in a specific state which is one state of the high consumption state and the first low consumption state, the communication device may transit to a second low consumption state. The communication device may be configured to execute a packet process in a case where a receiving process for receiving a packet is executed after the communication device had transited to the first low consumption state. The communication device may be configured not to execute the packet process in a case where the receiving process for receiving the packet is executed after the communication device had transited to the second low consumption state.