Communication Device Link Stability Control
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Solution Overview
Problem
Communication links established using the Energy Efficient Ethernet (EEE) function may disconnect unexpectedly, preventing appropriate data communication between information processing devices and external devices.
Innovation Solution
A communication device with a processor and memory that detects disconnections and issues a prohibition instruction to switch from the power saving method to the normal method for maintaining the communication link, ensuring stable communication by establishing a new link without using the EEE function when disconnections occur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If the power saving method (EEE function) is used to maintain the communication link, then power consumption is reduced, but the communication link may disconnect unexpectedly
Solution Approach 1:
The system dynamically switches between power saving method and normal method based on link stability detection. When disconnections are detected, the system transitions from the power saving method to the normal method, making the power consumption adaptive to link conditions rather than static
Solution Approach 2:
The system implements feedback by detecting communication link disconnections and using this information to control the selection of power saving method. The detection result feeds back to the power saving control unit, which then adjusts the power saving method usage accordingly
2Reliability
If the normal method is used to maintain the communication link, then link stability is improved, but power consumption increases
Solution Approach 1:
The system uses dynamic power management by switching between normal method and power saving method based on detected link conditions. The power consumption level adapts to the actual need for stability, using higher power only when necessary to maintain reliable communication
3Use of energy by stationary object
If the power saving method is continuously used despite disconnections, then power consumption remains low, but data communication cannot be executed appropriately
Solution Approach 1:
The system uses disconnection detection feedback to control power saving method usage. When disconnections occur, the feedback mechanism triggers a switch to the normal method, ensuring that power consumption is reduced only when communication is actually stable and effective
Data Source
AI summary
A communication device may detect a disconnection of a first communication link in spite of a communication interface executing a communication for maintaining a state of the first communication link with an external device being established by using a power saving method. The communication device may supply a prohibition instruction for prohibiting a use of the power saving method to the communication interface in a case where the disconnection of the first communication link is detected. The communication interface may maintain a state of a second communication link, which is different from the first communication link, being established by using a normal method without using the power saving method in a case where the communication interface establishes the second communication link with the external device after acquiring the prohibition instruction in response to the disconnection of the first communication link.