Auto-negotiation Link Training for Network Connections
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Solution Overview
Problem
Current auto-negotiation methods in data communication networks, such as IEEE 802.3, fail to establish links effectively at higher speeds and distances due to limitations in link training and transmit power settings, especially when auto-negotiation is disabled, leading to failed connections.
Innovation Solution
Implement a method that checks for auto-negotiation capability at the far-end device, attempts auto-negotiation with increasing transmission power, and if unsuccessful, switches to static transmission settings with enabled link training, or combines these approaches for a hybrid method to establish connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If auto-negotiation is used for link configuration, then connection establishment is automated, but link establishment fails at higher speeds and distances
Solution Approach 1:
The system dynamically adjusts transmission power levels based on link establishment success or failure. When auto-negotiation fails, the method automatically increases transmit power in incremental steps and re-attempts link establishment, transforming a static negotiation process into a dynamic adaptive system that responds to actual link conditions.
Solution Approach 2:
The invention changes the transmit power parameter during the link establishment process. When initial auto-negotiation fails, the system modifies the transmission power level (increasing it in controlled increments) and re-attempts connection, directly addressing the limitation of fixed power settings in standard auto-negotiation protocols.
2Length of stationary object
If transmission power is increased to overcome distance limitations, then link establishment succeeds at higher distances, but signal quality may deteriorate
Solution Approach 1:
The system implements dynamic power adjustment by increasing transmission power in incremental steps only when link establishment fails, rather than maintaining continuously high power. This adaptive approach allows the system to use minimal necessary power while extending reach when needed.
Solution Approach 2:
The method incorporates feedback mechanisms by monitoring link establishment success and using this information to determine whether to increase power. The system only adjusts power levels when actual link failures occur, using real-time performance feedback to guide power management decisions.
3Reliability
If static transmission settings are used instead of auto-negotiation, then link establishment is more reliable, but configuration process becomes manual and time-consuming
Solution Approach 1:
The system performs self-configuration by automatically detecting link establishment failures and adjusting transmission power levels without manual intervention. The hybrid method enables the system to serve itself by combining automated detection with adaptive power management, eliminating the need for manual configuration while maintaining reliability.
Solution Approach 2:
The invention prepares multiple transmission power levels in advance and has a predefined sequence for attempting link establishment with increasing power. This preliminary preparation allows the system to respond automatically to failures without requiring real-time manual configuration decisions.
Data Source
AI summary
Aspects of the current patent document include systems and methods to improve configuration of network communication links between devices. In embodiments, a device may attempt auto-negotiation with another device in which transmit power levels are increased in an attempted to establish the link. In embodiments, an approach to establishing a link comprises setting the device in static mode but enabling link training. In yet another embodiment, a hybrid approach to interfaces link up may comprise having auto-negotiation with increasing transmit power attempts enabled by default, followed by static mode link up with link training enabled, in the case the auto-negotiation fails.