Network Apparatus Standby Transceiver Frequency Allocation
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Solution Overview
Problem
Existing network systems face delays in optical path setting due to the control of analog devices in optical transceivers, particularly in frequency tunable lasers and filters, which require time for stabilization and fine adjustments, leading to significant delays in channel setting times.
Innovation Solution
A network apparatus and method that allocates unique frequencies to standby transceivers, allowing for rapid channel setting by selecting transceivers with minimal frequency tuning parameter changes, thereby reducing the time required for optical path setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frequency tunable lasers and filters are used in optical transceivers, then the network can be dynamically optimized and adaptability is improved, but the channel setting time increases due to analog device control delays
Solution Approach 1:
The patent pre-allocates unique frequencies to standby transceivers before they are needed, so that when a transceiver needs to be activated, it can immediately tune to its pre-assigned frequency without requiring time-consuming frequency search or adjustment. This preliminary frequency allocation resolves the contradiction by preparing the system in advance, enabling both dynamic optimization and rapid channel setting.
2Quantity of substance
If optical transceivers are shared among multiple fiber directions, then Capital Expenditure is reduced, but the complexity of frequency management increases
Solution Approach 1:
The patent segments the frequency resource space by allocating unique, non-overlapping frequencies to each standby transceiver. This segmentation approach allows multiple transceivers to share the same physical infrastructure without frequency conflicts, reducing the number of transceivers needed while keeping frequency management simple through clear frequency separation.
3Reliability
If rapid optical path setting is implemented for failure recovery, then network reliability is improved, but the precision of frequency tuning control may be compromised
Solution Approach 1:
By pre-allocating specific frequencies to standby transceivers and maintaining them in a ready state with their frequency parameters pre-configured, the system enables immediate activation upon failure detection. This preliminary preparation ensures both rapid response for reliability and maintains frequency tuning precision, as the transceivers are already optimized for their assigned frequencies.
Data Source
AI summary
A network apparatus includes a plurality of transceivers (110) each of which has a frequency variable characteristic and communicates on an allocated channel, a channel allocation unit (154) which allocates channels of standby transceivers that are not connected to a network and are set to a standby state, among the plurality of transceivers (110) so that the channels are different from each other, a tuning unit (158) which tunes the standby transceivers to the frequencies of the allocated channels by changing respective parameters, and a selection unit (156) which preferentially selects and uses a transceiver having a short channel setting time among the standby transceivers, when a path is newly set in the network.