Optical Transmission Device Frame Update Mechanism
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Solution Overview
Problem
Existing optical transmission systems lack the ability to efficiently update and maintain communication services when transitioning from 100G to higher traffic capacities, such as 400G, due to limitations in frame bandwidth adjustment and mapping techniques, leading to significant service disruptions.
Innovation Solution
The optical transmission device incorporates a signal processor and dual frame generator circuits to accommodate client signals into multiple time slot sequences, allowing for flexible frame configuration and continued service during updates by selectively using and replacing components, enabling seamless transitions from 100G to 200G or higher capacities without halting communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing frame bandwidth adjustment techniques (ODUflex Hitless adjustment, Link capacity adjustment scheme) are used, then frame bandwidth can be adjusted within limited ranges (100G or less, 40G maximum), but these techniques cannot support traffic exceeding 100G and cannot enable seamless updates of optical transmission devices
Solution Approach 1:
The patent segments the frame structure into multiple time slot sequences (first through fourth time slot sequences) within a superframe, allowing independent configuration and adjustment of each sequence. This segmentation enables flexible bandwidth allocation for different client signals while maintaining service continuity during device updates by allowing gradual transition between different frame configurations.
Solution Approach 2:
The patent implements dynamic frame bandwidth adjustment by allowing the system to flexibly configure and switch between different time slot sequence allocations based on traffic demands. The frame structure can be dynamically reconfigured to support traffic exceeding 100G, enabling seamless device updates without service interruption through real-time bandwidth reallocation.
2Productivity
If optical transmission device is updated from 100G configuration to 200G/400G configuration, then transmission capacity is improved, but communication service must be halted during the update process
Solution Approach 1:
The patent prepares multiple frame configurations (different time slot sequences) in advance within the same device. Before switching to a higher capacity configuration (200G/400G), the system already has the target configuration ready, allowing instantaneous switching without service interruption. This preliminary preparation of alternative configurations eliminates service halt during device updates.
Solution Approach 2:
The patent maintains continuous communication service during device updates by implementing hot-swappable frame configurations. The system can switch between different time slot sequence allocations while maintaining active transmission, ensuring that the useful action of data transmission continues uninterrupted during capacity upgrades from 100G to 200G/400G.
3Adaptability or versatility
If multiple time slot sequences are implemented for flexible frame configuration, then device complexity increases, but this complexity is necessary to achieve seamless updates and continuous service
Solution Approach 1:
The patent designs a universal signal processor that can handle multiple frame configurations through a single integrated architecture. The same signal processing unit can dynamically allocate and switch between different time slot sequences (first through fourth sequences) based on configuration requirements, reducing overall device complexity compared to having separate dedicated processors for each configuration type.
Data Source
AI summary
An optical transmission device includes: a signal processor, a first frame generator circuit and a second frame generator circuit. The signal processor accommodates a client signal into one or a plurality of time slot sequences among n time slot sequences. The first frame generator circuit generates a frame including the client signal accommodated into a part of time slot sequences among the n time slot sequences. The second frame generator circuit generates a frame including the client signal accommodated into other time slot sequences among the n time slot sequences. The signal processor accommodates the client signal into the n time slot sequences when the first frame generator circuit and the second frame generator circuit are implemented, and accommodates the client signal into the other time slot sequences when the first frame generator circuit is not implemented and the second frame generator circuit is implemented.