Ethernet Multiplexing for Supervisory Channel Cost Reduction
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Solution Overview
Problem
Gigabit ethernet-based communication systems incur increased installation and operation costs due to the need for dedicated wavelength allocation and physical lines for fast ethernet, which is typically used as a supervisory channel.
Innovation Solution
A communication system that multiplexes gigabit ethernet and fast ethernet signals with different transmission rates onto a single physical line, using a first unit to generate a reference clock signal and multiplex the signals, and a second unit to separate and restore the signals, eliminating the need for additional configurations and dedicated lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated wavelength allocation and physical lines are used for fast ethernet supervisory channel, then signal transmission reliability is improved, but installation and operation costs increase
Solution Approach 1:
The patent merges the gigabit ethernet data channel and fast ethernet supervisory channel into a single physical line. The transmitting end multiplexes both signals together, and the receiving end demultiplexes them, eliminating the need for separate dedicated physical lines and wavelength allocations for the supervisory channel while maintaining signal transmission reliability.
Solution Approach 2:
The single physical line is designed to serve multiple functions: it simultaneously carries both the gigabit ethernet data channel and the fast ethernet supervisory channel. This multi-functionality approach allows one physical infrastructure to replace what would traditionally require separate dedicated infrastructures, reducing installation and operation costs.
2Reliability
If separate physical lines are allocated for fast ethernet supervisory channel, then signal interference is reduced, but device complexity increases
Solution Approach 1:
The patent combines the supervisory channel and data channel into a single physical line with multiplexing at the transmitting end and demultiplexing at the receiving end. This approach reduces device complexity by eliminating separate physical line configurations while maintaining signal integrity through proper multiplexing/demultiplexing operations.
Data Source
AI summary
An ethernet-based communication system is provided. The communication system comprises: a first unit configured to generate a reference clock signal by using an input first ethernet signal, multiplex the first ethernet signal and a second ethernet signal in response to the reference clock signal, and output the multiplexed ethernet signals; a second unit configured to generate the reference clock signal by using the multiplexed ethernet signals, separate the second ethernet signal from the multiplexed ethernet signals in response to the reference clock signal, and output the first ethernet signal; and a transmission medium for connecting the first and second units and transmitting the multiplexed ethernet signals from the first unit to the second unit.