Optical Transceiver Link Detection for Stable Data Transmission
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Solution Overview
Problem
Current optical transmission systems face challenges in accurately detecting whether a link partner is coupled through an optical transceiver unit, leading to unstable data transmission between hosts and devices.
Innovation Solution
A data transmission system and method that includes a controller in the first link partner to determine if a predetermined condition is met, allowing it to exit an abnormal operation mode and ensure stable data transmission via an optical transceiver unit by performing link detection and response signal polling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If optical transmission techniques are applied to achieve high transmission rate and long transmission distance, then transmission performance is improved, but the ability to accurately detect link partners and ensure stable data transmission deteriorates
Solution Approach 1:
The patent implements a link detection mechanism that performs preliminary actions before data transmission. The first link partner sends a link detection signal through the optical transceiver unit, and the second link partner responds with a response signal. This preliminary detection sequence establishes link status before actual data transmission begins, ensuring reliable connection verification while maintaining high transmission rates.
Solution Approach 2:
The patent employs a feedback mechanism where the second link partner sends a response signal back to the first link partner after receiving the link detection signal. This feedback loop allows the first link partner to confirm the presence and status of the second link partner, enabling accurate link detection while maintaining high-speed optical transmission capabilities.
2Length of stationary object
If optical transceiver units are used for opto-electronic conversion, then transmission distance is extended, but data transmission stability deteriorates due to inability to detect link partners
Solution Approach 1:
Before initiating data transmission through the optical transceiver unit, the system performs preliminary link detection by sending and receiving detection signals. This preliminary action verifies that the optical link is properly established and the remote link partner is present, ensuring stable data transmission over extended distances.
Solution Approach 2:
The link detection mechanism uses feedback where the remote link partner responds to detection signals. This feedback confirms that the optical transceiver unit is properly coupled and functioning, providing stability assurance for long-distance data transmission.
3Device complexity
If link detection is not implemented, then device complexity is reduced, but abnormal operation modes occur leading to unstable transmission
Solution Approach 1:
The patent implements a relatively simple preliminary link detection sequence before data transmission. The first link partner sends a detection signal, and the second link partner responds. This minimal additional complexity provides crucial reliability by detecting link status and preventing abnormal operation modes that would otherwise occur without such detection.
Data Source
AI summary
A data transmission system and method are provided. The data transmission system includes a first link partner and an optical transceiver unit. The first link partner includes a controller. When the first link partner is in an abnormal operation mode, the controller controls the first link partner to exit from the abnormal operation mode. The optical transceiver unit is coupled between the first link partner and a second link partner and performs data transmission between the first link partner and the second link partner. According to the data transmission system and method, one link partner can accurately detect whether another link partner is coupled to the one link partner through an optical transceiver unit. Accordingly, data transmission between the two link partners can be stably performed through the optical transceiver unit.