Optical Transmission Direction Switching for Traffic Adaptation
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Solution Overview
Problem
Existing optical transmission systems face challenges in dynamically adjusting the transmission capacities of optical transmission lines to match varying data traffic, leading to inefficiencies and the need for new fiber pairs even when total capacity is sufficient.
Innovation Solution
An optical transmission control apparatus that selects saturated optical transmission paths and specifies evacuation paths based on usage ratios, allowing for the transfer and sorting of data to optimize capacity utilization by switching the optical transmission direction of paired paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transmission capacity of optical transmission lines is fixed, then the system structure is simple, but the transmission capacity cannot be adjusted to match varying data traffic demands
Solution Approach 1:
The patent applies dynamics by enabling the optical transmission direction to be switched between uplink and downlink based on real-time traffic conditions. The control apparatus dynamically adjusts the transmission direction of optical signals through switching units, allowing the system to adapt to varying data traffic demands without physical infrastructure changes. This resolves the contradiction by making the transmission capacity adjustable (improving adaptability) while maintaining a relatively simple fixed physical infrastructure (limiting complexity increase).
Solution Approach 2:
The patent changes the parameter of optical transmission direction from a fixed state to a variable state that can be switched between uplink and downlink. By controlling the transmission direction parameter based on traffic conditions, the system achieves flexible capacity adjustment. The control apparatus monitors traffic and switches the transmission direction parameter to optimize capacity utilization, resolving the adaptability-flexibility contradiction.
2Productivity
If a new fiber pair is laid to handle increased downlink traffic, then the transmission capacity is sufficient, but the system complexity and cost increase
Solution Approach 1:
Instead of adding new fiber pairs statically, the system dynamically switches the transmission direction of existing fibers based on real-time traffic conditions. When downlink traffic increases, the control apparatus switches the transmission direction to utilize uplink capacity for downlink traffic, and vice versa. This dynamic adjustment achieves sufficient transmission capacity without laying new fibers, resolving the contradiction between productivity and device complexity.
Solution Approach 2:
The patent makes the optical transmission lines universal by enabling them to serve both uplink and downlink functions through direction switching. The same physical fiber pair can transmit data in either direction depending on traffic conditions, effectively doubling the utilization of existing infrastructure. This multi-functionality allows the system to handle increased traffic demands without adding new fiber pairs, resolving the contradiction between transmission capacity and infrastructure complexity.
3Productivity
If the optical transmission direction is fixed, then the system operation is simple, but the transmission capacity cannot be optimized based on traffic conditions
Solution Approach 1:
The control apparatus implements feedback by monitoring the actual traffic conditions on uplink and downlink channels. Based on this feedback information about traffic volumes and capacity utilization, the system automatically switches the transmission direction to optimize capacity usage. The feedback mechanism ensures that the transmission direction is adjusted according to real-time conditions, improving transmission efficiency while maintaining automated operation that reduces manual intervention complexity.
Solution Approach 2:
The system performs self-service by automatically detecting traffic conditions and switching transmission directions without requiring manual intervention. The control apparatus autonomously monitors traffic, determines when direction switching is needed, and executes the switching operation. This self-service capability improves transmission efficiency by continuously optimizing capacity utilization while simplifying operation from the user perspective, as no manual control is required.
Data Source
AI summary
An optical transmission control apparatus according to the present disclosure includes: a selecting unit configured to select a saturated optical transmission path of which an optical transmission usage ratio exceeds a first threshold from among a plurality of optical transmission paths connected between a first optical transmission apparatus and a second optical transmission apparatus; a specifying unit configured to specify an evacuation optical transmission path of which an optical transmission direction is opposite to that of the saturated optical transmission path and of which an optical transmission usage ratio is lower than a second threshold from among the plurality of optical transmission paths; and a control unit configured to transmit a transfer control signal for transferring data to be transmitted through a counterpart optical transmission path to the evacuation optical transmission path, the counterpart optical transmission path being an optical transmission path.