Communication system

Details Communication system Communication system

2006-05-02

2006-05-02

Bello, Agustin (Department: 2633)

Optical communications

Diagnostic testing

Determination of communication parameter

C398S031000

Reexamination Certificate

active

07039314

ABSTRACT:
A communication system performs WDM optical communications efficiently with variably set supervisory control channels. The communication system includes a supervisory control channel setting unit for variably setting supervisory control channels for supervising optical communications, said supervisory control channels including a first optical supervisory channel whose transmission band falls outside of the transmission band for main optical signals, and a second supervisory channel whose transmission band falls in an idle band in the transmission band for said main optical signals. The communication system also has a WDM transmitting unit for wavelength-multiplexing and -demultiplexing said supervisory control channels and said main optical signals. A setting information indicating unit indicates, to a WDM device, setting information for setting the supervisory control channels. An operating state managing unit manages a network operating state.

REFERENCES:
patent: 6018406 (2000-01-01), Ishimatsu et al.
patent: 6256126 (2001-07-01), Ogawa
patent: 6271962 (2001-08-01), Choi
patent: 6433903 (2002-08-01), Barry et al.
patent: 6639701 (2003-10-01), Hirst

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