Optical Transceiver Parameter Negotiation for Adaptive Link Settings
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Solution Overview
Problem
Existing optical network communication systems lack efficient methods for automatically negotiating configuration parameters between optical transceivers to optimize bandwidth and power efficiency, leading to suboptimal performance and reliability.
Innovation Solution
A method for automatically negotiating optical transceiver configuration parameters, including FEC schemes, SNR, and modulation settings, through message exchanges using Ethernet frames, ensuring matching settings between transmitting and receiving ends to enhance communication reliability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If baseline configuration parameter settings are used to facilitate reliability of initial communications, then communication reliability is improved, but bandwidth optimization is lost
Solution Approach 1:
The system performs preliminary configuration with baseline parameters to ensure initial communication reliability, then subsequently negotiates optimized parameters once the link is established. This preliminary action allows the system to first guarantee reliability before pursuing bandwidth optimization.
Solution Approach 2:
The configuration parameters are made dynamic through automatic negotiation between optical nodes. The system transitions from static baseline settings to dynamic optimized settings by continuously exchanging negotiation messages and adjusting parameters based on actual link conditions.
2Reliability
If manual configuration of optical transceiver parameters is performed, then communication reliability can be ensured, but system complexity and time consumption increase
Solution Approach 1:
The optical transceivers perform self-configuration through automatic parameter negotiation. Each node independently determines optimal parameters by exchanging negotiation messages with its peer, eliminating the need for manual configuration while ensuring communication reliability.
Solution Approach 2:
The negotiation process incorporates feedback mechanisms where nodes exchange information about supported parameters and link conditions. This feedback loop enables automatic determination of optimal configuration parameters without manual intervention.
3Strength
If higher transmission power is used to overcome optical loss, then signal strength is improved, but power consumption increases
Solution Approach 1:
The system dynamically changes transmission power parameters based on negotiated link conditions. Instead of using fixed high power settings, the transmission power is adjusted to match actual optical loss characteristics, achieving adequate signal strength with minimized power consumption.
4Reliability
If FEC schemes with more bits are used to improve error correction, then communication reliability is improved, but information throughput decreases
Solution Approach 1:
The FEC scheme parameters are dynamically selected based on negotiated link conditions. The system chooses appropriate FEC overhead levels matching the actual channel quality, avoiding excessive redundancy that would reduce throughput while maintaining sufficient error correction for reliability.
Data Source
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AI summary
Techniques for negotiating optical configuration parameters of transceivers are disclosed. In one example, a method may include outputting, by a first optical node to a second optical node, a negotiation request message that specifies a configuration parameter setting for optical transceivers, the setting comprising one of a speed, a forward error correction (FEC) scheme, a modulation type, a transmission power, a minimum central frequency, a maximum central frequency, a minimum input power, a maximum input power, or a signal-to-noise ratio threshold; receiving, by the first optical node from the second optical node, in response to the negotiation request message, a negotiation response message including an indication of support for the configuration parameter setting; and configuring, by the first optical node, in response to the indication of support, a configuration parameter of an optical transceiver for the first optical node with the configuration parameter setting for the configuration parameter.