Master Slave Transceiver Power Back-Off for Crosstalk Reduction
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Solution Overview
Problem
High-speed Ethernet networks face significant crosstalk issues as transmission frequencies increase, leading to signal interference, and existing methods to reduce signal amplitude to mitigate crosstalk are inefficient, causing unreliable data transmission.
Innovation Solution
A method and system for dynamically adjusting the power back-off of master and slave transceivers in Ethernet networks, where the master transceiver determines its power back-off and communicates it to the slave transceiver, allowing both to regulate their signal amplitudes to minimize crosstalk while maintaining a reliable signal-to-interference-and-noise ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If transmission signal amplitude is reduced to minimize crosstalk, then crosstalk interference is reduced, but signal-to-noise ratio deteriorates and transmission reliability decreases
Solution Approach 1:
The patent applies local quality by allowing different transceivers to have different power back-off settings tailored to their specific channel conditions. Each transceiver determines its own power back-off based on locally measured crosstalk and signal quality, rather than applying a uniform reduction across the network. This enables optimal local adaptation where each link can maintain sufficient signal amplitude for reliable transmission while minimizing its contribution to crosstalk affecting other links.
2Object-affected harmful factors
If transmission signal amplitude is reduced to minimize crosstalk, then crosstalk interference is reduced, but data transmission quality deteriorates
Solution Approach 1:
The patent implements dynamics by making power back-off settings adjustable and adaptable rather than fixed. The system dynamically determines power back-off values based on actual channel conditions, allowing the transmission quality to be optimized for each specific scenario. This dynamic approach enables the system to maintain high data transmission quality by adjusting signal amplitude to the minimum level necessary for reliable operation rather than applying excessive uniform reduction.
3Object-affected harmful factors
If worst case crosstalk threshold is applied to entire network, then crosstalk is controlled, but transmission signal amplitude is excessively reduced for most channels
Solution Approach 1:
The patent applies parameter changes by allowing each transceiver to determine its own power back-off parameter based on its specific channel characteristics and crosstalk conditions. Instead of applying a single worst-case threshold uniformly across the network, the system enables individualized parameter optimization where each link can operate at the minimum necessary signal amplitude for reliable transmission. This results in more efficient power utilization while still controlling crosstalk where it actually matters.
Data Source
AI summary
An apparatuses and methods of setting power back-off of a master transceiver and a slave transceiver is disclosed. One example of a method includes the master transceiver determining a master power back-off, and the slave transceiver determining a slave power back-off based on signals received from the master transceiver, and based on the master power back-off. One example of an apparatus includes a master transceiver and slave transceiver system. The slave transceiver is connected to the master transceiver through a cable. The master transceiver includes means for determining a master power back-off. The slave transceiver includes means for determining a slave power back-off based on signals received from the master transceiver, and based on the master power back-off.