Multi-Channel Link Power Saving via Channel Switching
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Solution Overview
Problem
In high-speed digital subscriber line (VDSL) communication systems, existing power management techniques struggle to save power without disrupting connectivity, as changing link configurations often requires lengthy re-training periods during which no data can be transmitted.
Innovation Solution
The implementation of a dual-channel link system that allows channels to adjust their characteristics from normal to low power mode without disrupting connectivity, by transferring data communication to another channel and shutting down underutilized channels, enabling power saving without connectivity loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If link configuration is changed to save power in VDSL, then power consumption is reduced, but connectivity is disrupted requiring lengthy re-training period
Solution Approach 1:
The communication link is divided into multiple independent channels (first channel and second channel). When power saving is needed, data transmission is switched from one channel to another, allowing individual channel configuration changes without affecting overall connectivity. This segmentation enables power management while maintaining continuous communication through alternative paths.
Solution Approach 2:
A channel switching mechanism acts as an intermediary between the need for power saving and the requirement for continuous connectivity. The system uses a second channel as a mediator that can carry data traffic while the first channel undergoes re-training or configuration changes, thus mediating between power reduction and connectivity maintenance.
2Loss of energy
If channel characteristics are adjusted to low power mode, then energy consumption decreases, but data transmission is interrupted during transition
Solution Approach 1:
The system performs preliminary actions by establishing or maintaining a second channel in readiness before transitioning to power saving mode. This preliminary preparation ensures that when the first channel needs to be adjusted to low power mode, data transmission can immediately switch to the pre-prepared second channel, avoiding transmission interruptions and time loss.
Solution Approach 2:
The system maintains continuous data transmission by switching between channels. While the first channel transitions to low power mode, the second channel continues to carry data traffic, ensuring uninterrupted useful action. This continuity is achieved by having redundant channel capacity available and switching data flow between channels based on power management needs.
Data Source
AI summary
A method for turning a multi-channel link into a power saving mode may include detecting one or more events including a drop in a data throughput of the multi-channel link. In response to the detection of one or more events, data communication through one or more channels of the multi-channel link may be transferred to one or more other channels. The characteristics of the one or more channels may be adjusted to achieve power saving. Data communication through the one or more channels may be resumed at a reduced rate. Some of the one or more other channels of the multi-channel link may be configured to operate in a low-power or shut-down mode while the channels with adjusted characteristics are communicating data at the reduced rate.